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<document id="26831278A61513BE0DBB7C49CC72F8BC" ID-CLB-Dataset="171433" ID-DOI="10.11646/zootaxa.5196.4.1" ID-GBIF-Dataset="5981d91b-b1c3-4599-b241-58cd7f3937b6" ID-ISSN="1175-5326" ID-Zenodo-Dep="7235610" ID-ZooBank="D11B689F-70DF-4B27-959D-63A520D125E2" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1666362462036" checkinUser="plazi" docAuthor="Taylor, Abbie, Mortimer, Kate &amp; Jimi, Naoto" docDate="2022" docId="FA57DE61E36625517E860EF89C1BFF2C" docLanguage="en" docName="zootaxa.5169.4.1.pdf" docOrigin="Zootaxa 5196 (4)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Magelona boninensis Taylor &amp; Mortimer &amp; Jimi 2022, sp. nov." docType="treatment" docUuid="3CED40AC-71DB-4DF0-AFA8-FB56B1862FF2" docUuidSource="ZooBank" docVersion="7" lastPageNumber="480" masterDocId="066EA619E370254F7E11086F9D54FFD5" masterDocTitle="Unearthing the diversity of Japanese Magelona (Annelida: Magelonidae); three species new to science, and a redescription of Magelona japonica" masterLastPageNumber="491" masterPageNumber="451" pageNumber="473" updateTime="1699408130317" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="090C9A55D71AE74D5A9B392857C11EEE">Unearthing the diversity of Japanese Magelona (Annelida: Magelonidae); three species new to science, and a redescription of Magelona japonica</mods:title>
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<mods:name id="C969A5F9CFB5C1549184BDE455816C50" type="personal">
<mods:role id="2C3A9A85ADD929009DC2F3CF163CE68E">
<mods:roleTerm id="95534048303D3E7EEAD16D72D9BA816C">Author</mods:roleTerm>
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<mods:namePart id="A50695F1ABD496A5D24A210255893902">Taylor, Abbie</mods:namePart>
<mods:affiliation id="69F9087AA7FEE2F018FA4505CDF79243">Department of Natural Sciences, Amgueddfa Cymru - Museum Wales, Cathays Park, Cardiff CF 10 3 NP, Wales, U. K. &amp; School of Biosciences, Cardiff University, Cardiff CF 10 3 AX, Wales, U. K.</mods:affiliation>
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<mods:namePart id="7F9E08F72BAA8BD8F37683C97938CB64">Mortimer, Kate</mods:namePart>
<mods:nameIdentifier id="71EB05A45F0F9D8DD70E1C68ECF5F1B1" type="ORCID">0000-0002-3430-1659</mods:nameIdentifier>
<mods:affiliation id="D00E774D6FBBC367CE1011CD88DDC6E2">Department of Natural Sciences, Amgueddfa Cymru - Museum Wales, Cathays Park, Cardiff CF 10 3 NP, Wales, U. K. &amp; Katie. Mortimer @ museumwales. ac. uk; https: // orcid. org / 0000 - 0002 - 3430 - 1659</mods:affiliation>
<mods:nameIdentifier id="92826C1D41EF5313D591A62F6F11DC77" type="email">ortimer@museumwales.ac.uk</mods:nameIdentifier>
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<mods:namePart id="48A3AE7E2A1BD487425DF4E301F770AD">Jimi, Naoto</mods:namePart>
<mods:affiliation id="FBCE1E3422CDDC9E9309BBB51192C01E">Sugashima Marine Biological Laboratory, Graduate School of Science, Nagoya University, Toba, Japan &amp; Centre for Marine &amp; Coastal Studies, Universiti Sains Malaysia 11800 USM, Penang, Malaysia</mods:affiliation>
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<mods:title id="7F15E2EA2166C027A026F29C8616995B">Zootaxa</mods:title>
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<mods:date id="3AAB4C6673EBF2B342144A47381A493A">2022</mods:date>
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<mods:number id="CDEE983EF04E3623F997469A11223E1F">2022-10-21</mods:number>
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<subSubSection id="3AE43CFCE36625597E860EF89F10F903" pageId="22" pageNumber="473" type="nomenclature">
<paragraph id="72416F77E36625597E860EF89F54F967" blockId="22.[151,1175,1687,1859]" box="[151,512,1687,1714]" pageId="22" pageNumber="473">
<heading id="2909D81BE36625597E860EF89F54F967" bold="true" box="[151,512,1687,1714]" fontSize="11" level="1" pageId="22" pageNumber="473" reason="1">
<emphasis id="408AB365E36625597E860EF89F54F967" bold="true" box="[151,512,1687,1714]" pageId="22" pageNumber="473">
<taxonomicName id="B5FE14F4E36625597E860EF89CCFF967" ID-CoL="0e7a8fae-0d4f-4ddc-941d-e9779c28ac20" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[151,411,1687,1714]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="22" pageNumber="473" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36625597E860EF89CCFF967" bold="true" box="[151,411,1687,1714]" italics="true" pageId="22" pageNumber="473">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36625597FB20EF79F54F967" box="[419,512,1688,1714]" pageId="22" pageNumber="473" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="72416F77E36625597E860ED29F10F903" blockId="22.[151,1175,1687,1859]" box="[151,580,1724,1751]" pageId="22" pageNumber="473">[Japanese name: Bonin-morote-gokai]</paragraph>
</subSubSection>
<subSubSection id="3AE43CFCE36625597E860E8F99C3F896" pageId="22" pageNumber="473" type="description">
<paragraph id="72416F77E36625597E860E8F9C41F92F" blockId="22.[151,1175,1687,1859]" box="[151,277,1760,1786]" pageId="22" pageNumber="473">
<figureCitation id="EAC573F2E36625597E860E8F9C41F92F" box="[151,277,1760,1786]" captionStart-0="FIGURE 14" captionStart-1="FIGURE 15" captionStart-2="FIGURE 16" captionStart-3="FIGURE 17" captionStart-4="FIGURE 18" captionStartId-0="24.[151,250,1776,1800]" captionStartId-1="25.[151,250,1818,1842]" captionStartId-2="26.[151,250,1851,1875]" captionStartId-3="27.[151,250,1745,1769]" captionStartId-4="28.[151,250,1808,1832]" captionTargetBox-0="[273,1346,186,1751]" captionTargetBox-1="[189,1398,181,1794]" captionTargetBox-2="[177,1411,181,1826]" captionTargetBox-3="[337,1250,181,1721]" captionTargetBox-4="[227,1361,181,1784]" captionTargetId-0="figure-27@24.[238,1350,181,1752]" captionTargetId-1="figure-19@25.[189,1398,181,1794]" captionTargetId-2="figure-27@26.[177,1411,181,1826]" captionTargetId-3="figure-19@27.[337,1250,181,1721]" captionTargetId-4="figure-27@28.[227,1361,181,1784]" captionTargetPageId-0="24" captionTargetPageId-1="25" captionTargetPageId-2="26" captionTargetPageId-3="27" captionTargetPageId-4="28" captionText-0="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." captionText-1="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." captionText-2="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." captionText-3="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." captionText-4="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi-0="http://doi.org/10.5281/zenodo.7235646" figureDoi-1="http://doi.org/10.5281/zenodo.7235648" figureDoi-2="http://doi.org/10.5281/zenodo.7235652" figureDoi-3="http://doi.org/10.5281/zenodo.7235656" figureDoi-4="http://doi.org/10.5281/zenodo.7235658" httpUri-0="https://zenodo.org/record/7235646/files/figure.png" httpUri-1="https://zenodo.org/record/7235648/files/figure.png" httpUri-2="https://zenodo.org/record/7235652/files/figure.png" httpUri-3="https://zenodo.org/record/7235656/files/figure.png" httpUri-4="https://zenodo.org/record/7235658/files/figure.png" pageId="22" pageNumber="473">Figs 1418</figureCitation>
</paragraph>
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<emphasis id="408AB365E36625597E860F6A9C73F8CB" box="[151,295,1796,1822]" italics="true" pageId="22" pageNumber="473">Type locality</emphasis>
: Bonin Islands,
<collectingCountry id="0AE92FE7E36625597FCF0F6A9F4AF8CA" box="[478,542,1797,1823]" name="Japan" pageId="22" pageNumber="473">Japan</collectingCountry>
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<paragraph id="72416F77E36625597E860F4799C3F896" blockId="22.[151,1175,1687,1859]" box="[151,1175,1832,1859]" pageId="22" pageNumber="473">
ZooBank LSID:
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urn:lsid:zoobank.org:act:
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<emphasis id="408AB365E36625597E860F1F9C2AF85F" bold="true" box="[151,382,1904,1930]" pageId="22" pageNumber="473">Material examined.</emphasis>
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<collectingCountry id="0AE92FE7E36625597F930F1F9C8EF85F" box="[386,474,1904,1930]" name="Japan" pageId="22" pageNumber="473">JAPAN</collectingCountry>
,
<location id="772139ACE36625597FF30F1F9FFEF85F" LSID="urn:lsid:plazi:treatment:FA57DE61E36625517E860EF89C1BFF2C:772139ACE36625597FF30F1F9FFEF85F" box="[482,682,1904,1930]" country="Japan" latitude="27.0933" longLatPrecision="6" longitude="142.1938" municipality="Bonin Islands" name="Chichijima Island" pageId="22" pageNumber="473">Chichijima Island</location>
,
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Ougiura Beach (
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,
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,
<collectionCode id="14EFF7B2E36625597F890FFB9CB6F87B" box="[408,482,1940,1966]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="22" pageNumber="473">NMW</collectionCode>
.Z.2022.001.0003, af, pf;
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,
<collectionCode id="14EFF7B2E36625597D900FFB9E9FF87B" box="[897,971,1940,1966]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="22" pageNumber="473">NMW</collectionCode>
.Z.2022.001.0004, 8af, 4f, 4 loose palps; NSMT-Pol P-890, 7af (etoh); imaged
<typeStatus id="AD45D1D5E36625597C5B0FD69FECF806" box="[586,696,1977,2003]" pageId="22" pageNumber="473" type="paratype">paratypes</typeStatus>
,
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.Z.2022.001.0005, 3af (formalin fixed);
<typeStatus id="AD45D1D5E36625597AC40FD69817F806" box="[1237,1347,1977,2003]" pageId="22" pageNumber="473" type="paratype">paratypes</typeStatus>
,
<collectionCode id="14EFF7B2E36625597B410FD698CDF806" box="[1360,1433,1977,2003]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="22" pageNumber="473">NMW</collectionCode>
. Z.2022.001.0006, 2af, 4f, 2 loose palps (formalin fixed; last chaetiger of 67 chaetiger specimen dissected and slide mounted); NSMT-Pol P-891, 2af (formalin fixed); dissected
<typeStatus id="AD45D1D5E36725587D6F08F89EB5FF64" box="[894,993,151,177]" pageId="23" pageNumber="474" type="paratype">paratype</typeStatus>
,
<collectionCode id="14EFF7B2E36725587DFC08F89963FF64" box="[1005,1079,151,177]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="23" pageNumber="474">NMW</collectionCode>
.Z.2022.001.0007, af; SEM stub mounted
<typeStatus id="AD45D1D5E36725587EEC08D49C3CFF00" box="[253,360,187,213]" pageId="23" pageNumber="474" type="paratype">paratypes</typeStatus>
(dried and sputter-coated),
<collectionCode id="14EFF7B2E36725587C8208D59F89FF01" box="[659,733,186,212]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="23" pageNumber="474">NMW</collectionCode>
.Z.2022.001.00089, 2af), (
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,
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), sandy sediment, collected by NJ, by snorkelling,
<elevation id="F9D38844E36725587C0B08B19FE7FF2D" box="[538,691,222,249]" metricMagnitude="0" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="23" pageNumber="474" unit="m" value="1.5" valueMax="2.0" valueMin="1.0">
<quantity id="B506C292E36725587C0B08B19F32FF2C" box="[538,614,222,249]" metricMagnitude="0" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="23" pageNumber="474" unit="m" value="1.5" valueMax="2.0" valueMin="1.0">12 m</quantity>
depth
</elevation>
,
<date id="064049B7E36725587CD208B19E12FF2C" box="[707,838,222,249]" pageId="23" pageNumber="474" value="2015-03-27">
<collectingDate id="1604B05FE36725587CD208B19E12FF2C" box="[707,838,222,249]" pageId="23" pageNumber="474" value="2015-03-27">27/03/2015</collectingDate>
</date>
.
</materialsCitation>
<materialsCitation id="C296652AE36725587D4408B19C4AFE95" ID-GBIF-Occurrence="3944665303" collectingDate="2015-03-26" collectingDateMax="2015-03-27" collectingDateMin="2015-03-26" collectionCode="NMW" country="Japan" elevation="2" latitude="27.0933" location="Chichijima Island" longLatPrecision="6" longitude="142.1938" municipality="Bonin Islands" pageId="23" pageNumber="474" specimenCount="8" typeStatus="paratype">
Omura Beach (
<typeStatus id="AD45D1D5E36725587A1908B1992DFF2D" box="[1032,1145,222,248]" pageId="23" pageNumber="474" type="paratype">Paratypes</typeStatus>
,
<collectionCode id="14EFF7B2E36725587A9808B19987FF2D" box="[1161,1235,222,248]" country="Austria" httpUri="http://grbio.org/cool/c7yt-hh77" name="Naturhistorisches Museum, Wien" pageId="23" pageNumber="474">NMW</collectionCode>
.Z.2022.001.0010, af; NSMT-Pol P-892, af), (
<geoCoordinate id="17CA09B0E36725587FC3096D9F65FEC9" box="[466,561,258,284]" degrees="27.0933" direction="north" orientation="latitude" pageId="23" pageNumber="474" precision="5" value="27.0933">27.0933</geoCoordinate>
,
<geoCoordinate id="17CA09B0E36725587C50096D9FFAFEC9" box="[577,686,258,284]" degrees="142.1938" direction="east" orientation="longitude" pageId="23" pageNumber="474" precision="5" value="142.1938">142.1938</geoCoordinate>
), sandy sediment, collected by NJ by snorkelling,
<elevation id="F9D38844E36725587B10096D98CCFEC9" box="[1281,1432,258,284]" metricMagnitude="0" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="23" pageNumber="474" unit="m" value="1.5" valueMax="2.0" valueMin="1.0">
<quantity id="B506C292E36725587B10096D9818FEC9" box="[1281,1356,258,284]" metricMagnitude="0" metricUnit="m" metricValue="1.5" metricValueMax="2.0" metricValueMin="1.0" pageId="23" pageNumber="474" unit="m" value="1.5" valueMax="2.0" valueMin="1.0">12 m</quantity>
depth
</elevation>
,
<date id="064049B7E36725587E86094A9C4FFE95" box="[151,283,293,320]" pageId="23" pageNumber="474" value="2015-03-26">
<collectingDate id="1604B05FE36725587E86094A9C4FFE95" box="[151,283,293,320]" pageId="23" pageNumber="474" value="2015-03-26">26/03/2015</collectingDate>
</date>
.
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="3AE43CFCE36725587ED609269FC9FDEF" pageId="23" pageNumber="474" type="diagnosis">
<paragraph id="72416F77E36725587ED609269FC9FDEF" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
<emphasis id="408AB365E36725587ED609269C16FEB6" bold="true" box="[199,322,329,355]" pageId="23" pageNumber="474">Diagnosis.</emphasis>
Prostomium longer than wide with distinct prostomial horns. Notopodia of chaetigers 18 with slender foliaceous postchaetal lamellae with crenulate margins, expanded as cirriform superior dorsal lobes. Neuropodia with slender triangular ventral lamellae; chaetiger 8 with additional triangular postchaetal lamellae. Notopodia of chaetiger 9 with rounded postchaetal lamellae confluent with prechaetal ridges and expanded as lateral cirriform lobes. Neuropodia of chaetiger 9 similar to preceding chaetiger. All thoracic chaetae bilimbate capillary. Abdominal lateral lamellae basally constricted with postchaetal expansions. Hooded hooks tridentate, in two groups. Posteriorly open pouches present.
</paragraph>
</subSubSection>
<subSubSection id="3AE43CFCE36725527ED60A2C9C6DFB8C" lastPageId="29" lastPageNumber="480" pageId="23" pageNumber="474" type="description">
<paragraph id="72416F77E36725587ED60A2C9DEEFD39" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
<emphasis id="408AB365E36725587ED60A2C9C0DFD88" bold="true" box="[199,345,579,605]" pageId="23" pageNumber="474">Dimensions.</emphasis>
A moderately large species (
<figureCitation id="EAC573F2E36725587C880A2C9E50FD8B" box="[665,772,579,606]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14A</figureCitation>
;
<figureCitation id="EAC573F2E36725587D1E0A2C9E14FD8B" box="[783,832,579,606]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">15E</figureCitation>
;
<figureCitation id="EAC573F2E36725587D5A0A2C9E2BFD88" box="[843,895,579,605]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16D</figureCitation>
); junction between thorax and abdomen distinct, abdomen thicker and wider than thorax. Thorax appearing dorsoventrally flattened in comparison to more rounded abdomen (
<figureCitation id="EAC573F2E36725587F1C0AE49C20FD73" box="[269,372,651,678]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">Figs 15F</figureCitation>
;
<figureCitation id="EAC573F2E36725587F910AE49CE6FD70" box="[384,434,651,677]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16B</figureCitation>
). All specimens posteriorly incomplete, one posterior fragment present in vial (
<figureCitation id="EAC573F2E36725587B3D0AE498C4FD70" box="[1324,1424,651,677]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">Fig. 16F</figureCitation>
). Thoracic chaetiger length approximately one and a half times width from chaetiger 3 onwards (
<figureCitation id="EAC573F2E36725587AA50AC09874FD1C" box="[1204,1312,687,713]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14A</figureCitation>
;
<figureCitation id="EAC573F2E36725587B3B0AC1980FFD1C" box="[1322,1371,686,713]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">15B</figureCitation>
;
<figureCitation id="EAC573F2E36725587B760AC09DF9FD39" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16B, C</figureCitation>
).
</paragraph>
<paragraph id="72416F77E36725587ED60A999E8DFC8D" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
<typeStatus id="AD45D1D5E36725587ED60A999C7BFCC5" box="[199,303,758,784]" pageId="23" pageNumber="474" type="holotype">Holotype</typeStatus>
dimensions: prostomium
<quantity id="B506C292E36725587C480A999FEBFCC4" box="[601,703,758,785]" metricMagnitude="-3" metricUnit="m" metricValue="1.25" pageId="23" pageNumber="474" unit="mm" value="1.25">1.25 mm</quantity>
long,
<quantity id="B506C292E36725587D1B0A999E19FCC4" box="[778,845,758,785]" metricMagnitude="-3" metricUnit="m" metricValue="1.0" pageId="23" pageNumber="474" unit="mm" value="1.0">1 mm</quantity>
wide; thorax 7.0 mm long (including prostomium),
<quantity id="B506C292E36725587E860B759DB9FCE1" box="[151,237,794,820]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="23" pageNumber="474" unit="mm" value="0.6">0.6 mm</quantity>
wide; abdomen 1.0 mm wide; total length approximately 37.0 mm for 65 chaetigers. Posterior fragment 68 chaetigers long. Other
<typeStatus id="AD45D1D5E36725587F870B519F55FC8D" box="[406,513,830,856]" pageId="23" pageNumber="474" type="paratype">paratypes</typeStatus>
with 17103 chaetigers for
<quantity id="B506C292E36725587D2D0B529E80FC8D" box="[828,980,829,856]" metricMagnitude="-2" metricUnit="m" metricValue="2.5949999999999998" metricValueMax="4.4399999999999995" metricValueMin="0.75" pageId="23" pageNumber="474" unit="mm" value="25.95" valueMax="44.4" valueMin="7.5">7.544.4 mm</quantity>
.
</paragraph>
<paragraph id="72416F77E36725587ED60B0E9C0CFB34" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
<emphasis id="408AB365E36725587ED60B0E9C0DFCAE" bold="true" box="[199,345,865,891]" pageId="23" pageNumber="474">Description.</emphasis>
Prostomium longer than wide (L:W ratio 1.071.43); spatulate, anterior margin triangular, appearing smooth, but minute crenulations apparent across entire margin only under high magnification (
<figureCitation id="EAC573F2E36725587B3C0BEA98C3FC4A" box="[1325,1431,901,927]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14B</figureCitation>
;
<figureCitation id="EAC573F2E36725587E860BC69D96FC16" box="[151,194,937,963]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="23" pageNumber="474">18J</figureCitation>
). Conspicuous prostomial horns present, separated from distal prostomial margin by a large degree (
<figureCitation id="EAC573F2E36725587B3D0BC69DF8FC32" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14A, B</figureCitation>
;
<figureCitation id="EAC573F2E36725587EAA0BA39C44FC32" box="[187,272,972,999]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">15A, B</figureCitation>
;
<figureCitation id="EAC573F2E36725587F0F0BA39C06FC33" box="[286,338,972,998]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16A</figureCitation>
;
<figureCitation id="EAC573F2E36725587F4E0BA29CC7FC32" box="[351,403,973,999]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="23" pageNumber="474">17D</figureCitation>
;
<figureCitation id="EAC573F2E36725587FB10BA29C9EFC32" box="[416,458,973,999]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="23" pageNumber="474">18J</figureCitation>
). Lateral margins often appearing undulating due to length of prostomium. Two pairs of prominent longitudinal dorsal muscular ridges present, outer pair ridged transversely and abutting inners for entire length: inner pair diverging distally into each horn. Distinct patterned areas either side of ridges, oblong of varying sizes, additional small circular markings present towards outer edges of the prostomium (
<figureCitation id="EAC573F2E36725587AFD0C57980CFB87" box="[1260,1368,1080,1106]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14B</figureCitation>
;
<figureCitation id="EAC573F2E36725587B740C5798DBFB87" box="[1381,1423,1080,1106]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="23" pageNumber="474">18J</figureCitation>
). Burrowing organ almost entirely everted on
<typeStatus id="AD45D1D5E36725587C9D0C349FA5FBA0" box="[652,753,1115,1141]" pageId="23" pageNumber="474" type="holotype">holotype</typeStatus>
, heart-shaped, longitudinally ridged inferiorly, upper surface smoother but with some longitudinal ridging (
<figureCitation id="EAC573F2E36725587CB40C109E59FB4C" box="[677,781,1151,1177]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">Fig. 16B</figureCitation>
). Burrowing organ additionally everted on
<specimenCount id="64F8A4FEE36725587AEA0C1098CDFB4C" box="[1275,1433,1151,1177]" pageId="23" pageNumber="474" type="generic">24 specimens</specimenCount>
: heart-shaped when fully everted (
<specimenCount id="64F8A4FEE36725587C020CCC9FE1FB68" box="[531,693,1187,1213]" pageId="23" pageNumber="474" type="generic">ten specimens</specimenCount>
) (
<figureCitation id="EAC573F2E36725587CDF0CCC9E61FB68" box="[718,821,1187,1213]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="23" pageNumber="474">Fig. 17B</figureCitation>
), round to oval when partially everted (
<specimenCount id="64F8A4FEE36725587AE80CCC98C0FB68" box="[1273,1428,1187,1213]" pageId="23" pageNumber="474" type="generic">14 specimens</specimenCount>
) (
<figureCitation id="EAC573F2E36725587E8E0CA89C5FFB34" box="[159,267,1222,1249]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">Figs 15D</figureCitation>
;
<figureCitation id="EAC573F2E36725587F060CA89C1FFB34" box="[279,331,1223,1249]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16D</figureCitation>
).
</paragraph>
<paragraph id="72416F77E36725587ED60C859918FA41" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
Right-hand palp retained on
<typeStatus id="AD45D1D5E36725587C170C859F3FFAD1" box="[518,619,1258,1284]" pageId="23" pageNumber="474" type="holotype">holotype</typeStatus>
, extending to approximately chaetiger 43, non-papillated region reaching mid chaetiger 3. Papillae long, lengthening towards distal palp tips, slender, digitiform (
<figureCitation id="EAC573F2E36725587A920D619803FAFC" box="[1155,1367,1294,1321]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">Figs 15A, B, D, E</figureCitation>
;
<figureCitation id="EAC573F2E36725587B740D619DFBFA99" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16A, D</figureCitation>
). Papillae in three rows either side of an indistinct longitudinal line proximally and medially, reducing to one row either side at distal tips (
<figureCitation id="EAC573F2E36725587FA00D3A9F35FAA5" box="[433,609,1365,1392]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="23" pageNumber="474">Fig. 17A, C, D</figureCitation>
). Palps additionally present (at least partially) on
<specimenCount id="64F8A4FEE36725587A8B0D399878FAA5" box="[1178,1324,1366,1392]" pageId="23" pageNumber="474" type="generic" typeStatus="paratypes">22 paratypes</specimenCount>
, long and slender; arising ventrolaterally from base of prostomium, reaching chaetigers 2450.
</paragraph>
<paragraph id="72416F77E36725587ED60DF29FAAF95B" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
Achaetous region behind prostomium approximately one and a half times the size of chaetiger 1 (
<figureCitation id="EAC573F2E36725587B380DF298CCFA62" box="[1321,1432,1437,1463]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14A</figureCitation>
;
<figureCitation id="EAC573F2E36725587E860DAE9D98FA09" box="[151,204,1473,1500]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">15A</figureCitation>
). Chaetigers 17 similar; parapodia biramous (
<figureCitation id="EAC573F2E36725587CCA0DAE9E0AFA0E" box="[731,862,1473,1499]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14CI</figureCitation>
;
<figureCitation id="EAC573F2E36725587D780DAE9EC3FA09" box="[873,919,1473,1500]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">15F</figureCitation>
;
<figureCitation id="EAC573F2E36725587DB50DAE9E82FA0E" box="[932,982,1473,1499]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16B</figureCitation>
;
<figureCitation id="EAC573F2E36725587DF30DAE996DFA0E" box="[994,1081,1473,1499]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="23" pageNumber="474">18AG</figureCitation>
); notopodia with low triangular prechaetal lamellae confluent with large spatulate to slender foliaceous postchaetal lamellae, upper margins lightly crenulated. Notopodial lamellae marginally longer than neuropodial ones. Long slender, cirriform, prechaetal superior dorsal lobes present. Neuropodial pre- and postchaetal lamellae as low ridges, forming distinct cuff-like structures confluent with ventral triangular lamellae beneath chaetal bundle, of similar size along thorax. Slight postchaetal expansion from approximately chaetiger 5.
</paragraph>
<paragraph id="72416F77E36725587ED60EF89940F900" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
Chaetiger 8 parapodia similar to preceding chaetigers (
<figureCitation id="EAC573F2E36725587D2D0EF89EF4F964" box="[828,928,1687,1713]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14J</figureCitation>
;
<figureCitation id="EAC573F2E36725587DBF0EF89E89F967" box="[942,989,1687,1714]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">15F</figureCitation>
;
<figureCitation id="EAC573F2E36725587DFA0EF89948F964" box="[1003,1052,1687,1713]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16B</figureCitation>
;
<figureCitation id="EAC573F2E36725587A3B0EF89909F964" box="[1066,1117,1687,1713]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="23" pageNumber="474">18H</figureCitation>
), however, neuropodia with additional triangular postchaetal lamellae of similar size to the ventral lamellae.
</paragraph>
<paragraph id="72416F77E36725587ED60EB09CA3F821" blockId="23.[151,1443,151,2036]" pageId="23" pageNumber="474">
Notopodial prechaetal lamellae of chaetiger 9 as low ridges confluent with rounded postchaetal lamellae (smaller than those of preceding chaetigers) and inferiorly expanded as small cirriform processes; superior dorsal lobes absent (
<figureCitation id="EAC573F2E36725587E8E0F499C59F895" box="[159,269,1830,1856]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14K</figureCitation>
;
<figureCitation id="EAC573F2E36725587F0B0F499C1CF894" box="[282,328,1830,1857]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">15F</figureCitation>
;
<figureCitation id="EAC573F2E36725587F470F499CD3F895" box="[342,391,1830,1856]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="23" pageNumber="474">16B</figureCitation>
;
<figureCitation id="EAC573F2E36725587F840F499CEAF895" box="[405,446,1830,1856]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="23" pageNumber="474">18I</figureCitation>
). Neuropodia with triangular postchaetal lamellae confluent with low prechaetal ridges and smaller digitiform prechaetal lamellae. Thoracic chaetae smooth, bilimbate capillaries (
<figureCitation id="EAC573F2E36725587AB00F25985BF8B1" box="[1185,1295,1866,1892]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Fig. 14M</figureCitation>
), marginally longer in notopodia than neuropodia (
<figureCitation id="EAC573F2E36725587C520F029F97F85D" box="[579,707,1901,1928]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Fig. 14CI</figureCitation>
). Distinctly splayed in posterior thorax (
<figureCitation id="EAC573F2E36725587A9A0F02985AF85D" box="[1163,1294,1901,1928]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Fig. 14J, K</figureCitation>
). Chaetae of mid rami of chaetiger 9 with slightly irregular blades, tips of which are bent at roughly 45 degrees to shaft, not as marked as the irregular blades noted by
<bibRefCitation id="166F1286E36725587C4C0FDA9FA7F81A" author="Brasil, A. C. dos" box="[605,755,1973,1999]" pageId="23" pageNumber="474" refId="ref19686" refString="Brasil, A. C. dos S. (2003) Magelonidae Cunningham &amp; Ramage, 1888 (Annelida - Polychaeta) Phylogeny based on external morphology. [Doctoral dissertation, Federal University of Parana]" type="book" year="2003">
<collectingCountry id="0AE92FE7E36725587C4C0FDA9FF4F81A" box="[605,672,1973,1999]" name="Brazil" pageId="23" pageNumber="474">Brasil</collectingCountry>
(2003)
</bibRefCitation>
(
<figureCitation id="EAC573F2E36725587D130FDA9E3BF81A" box="[770,879,1973,1999]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="23" pageNumber="474">Figs 14N</figureCitation>
;
<figureCitation id="EAC573F2E36725587D6D0FDA9EE4F81A" box="[892,944,1973,1999]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="23" pageNumber="474">18K</figureCitation>
). Paired, reniform ventral swellings present from chaetigers 69 (
<figureCitation id="EAC573F2E36725587F970FB69CBDF821" box="[390,489,2009,2036]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="23" pageNumber="474">Fig. 15F</figureCitation>
).
</paragraph>
<caption id="26813FFFE36825577E860E9F9EEEF835" ID-DOI="http://doi.org/10.5281/zenodo.7235646" ID-Zenodo-Dep="7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="24" pageNumber="475" startId="24.[151,250,1776,1800]" targetBox="[273,1346,186,1751]" targetPageId="24">
<paragraph id="72416F77E36825577E860E9F9EEEF835" blockId="24.[151,1437,1776,2017]" pageId="24" pageNumber="475">
<emphasis id="408AB365E36825577E860E9F9C4BF8DD" bold="true" box="[151,287,1776,1800]" pageId="24" pageNumber="475">FIGURE 14.</emphasis>
<taxonomicName id="B5FE14F4E36825577F340E9F9CA9F8DD" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[293,509,1776,1800]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="24" pageNumber="475" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36825577F340E9F9CA9F8DD" box="[293,509,1776,1800]" italics="true" pageId="24" pageNumber="475">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36825577C120E9E9F05F8DD" box="[515,593,1777,1800]" pageId="24" pageNumber="475" rank="species">sp. nov.</taxonomicNameLabel>
(NMW.Z.2022.001.0003, Paratype, A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view. Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger.
</paragraph>
</caption>
<caption id="26813FFFE36925567E860F759FCBF833" ID-DOI="http://doi.org/10.5281/zenodo.7235648" ID-Zenodo-Dep="7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="25" pageNumber="476" startId="25.[151,250,1818,1842]" targetBox="[189,1398,181,1794]" targetPageId="25">
<paragraph id="72416F77E36925567E860F759FCBF833" blockId="25.[151,1437,1818,2022]" pageId="25" pageNumber="476">
<emphasis id="408AB365E36925567E860F759C74F8E7" bold="true" box="[151,288,1818,1842]" pageId="25" pageNumber="476">FIGURE 15.</emphasis>
<taxonomicName id="B5FE14F4E36925567F370F759F54F8E7" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[294,512,1818,1842]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="25" pageNumber="476" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36925567F370F759F54F8E7" box="[294,512,1818,1842]" italics="true" pageId="25" pageNumber="476">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36925567C170F749F01F8E7" box="[518,597,1819,1842]" pageId="25" pageNumber="476" rank="species">sp. nov.</taxonomicNameLabel>
(NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green. A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger.
</paragraph>
</caption>
<caption id="26813FFFE36A25557E860F54980CF836" ID-DOI="http://doi.org/10.5281/zenodo.7235652" ID-Zenodo-Dep="7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="26" pageNumber="477" startId="26.[151,250,1851,1875]" targetBox="[177,1411,181,1826]" targetPageId="26">
<paragraph id="72416F77E36A25557E860F54980CF836" blockId="26.[151,1437,1851,2019]" pageId="26" pageNumber="477">
<emphasis id="408AB365E36A25557E860F549C4BF886" bold="true" box="[151,287,1851,1875]" pageId="26" pageNumber="477">FIGURE 16.</emphasis>
<taxonomicName id="B5FE14F4E36A25557F350F549CA8F886" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[292,508,1851,1875]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="26" pageNumber="477" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36A25557F350F549CA8F886" box="[292,508,1851,1875]" italics="true" pageId="26" pageNumber="477">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36A25557C130F549F1BF887" box="[514,591,1851,1874]" pageId="26" pageNumber="477" rank="species">sp. nov.</taxonomicNameLabel>
(NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger.
</paragraph>
</caption>
<caption id="26813FFFE36B25547E860EBE9FEBF830" ID-DOI="http://doi.org/10.5281/zenodo.7235656" ID-Zenodo-Dep="7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="27" pageNumber="478" startId="27.[151,250,1745,1769]" targetBox="[337,1250,181,1721]" targetPageId="27">
<paragraph id="72416F77E36B25547E860EBE9FEBF830" blockId="27.[151,1437,1745,2021]" pageId="27" pageNumber="478">
<emphasis id="408AB365E36B25547E860EBE9C7DF93C" bold="true" box="[151,297,1745,1769]" pageId="27" pageNumber="478">FIGURE 17.</emphasis>
SEM images of
<taxonomicName id="B5FE14F4E36B25547FEA0EBE9F89F93C" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[507,733,1745,1769]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="27" pageNumber="478" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36B25547FEA0EBE9F89F93C" box="[507,733,1745,1769]" italics="true" pageId="27" pageNumber="478">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36B25547CFF0EBD9E12F93C" box="[750,838,1746,1769]" pageId="27" pageNumber="478" rank="species">sp. nov.</taxonomicNameLabel>
(NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes.
</paragraph>
</caption>
<caption id="26813FFFE36C25537E860F7F9840F808" ID-DOI="http://doi.org/10.5281/zenodo.7235658" ID-Zenodo-Dep="7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="28" pageNumber="479" startId="28.[151,250,1808,1832]" targetBox="[227,1361,181,1784]" targetPageId="28">
<paragraph id="72416F77E36C25537E860F7F9840F808" blockId="28.[151,1437,1808,2013]" pageId="28" pageNumber="479">
<emphasis id="408AB365E36C25537E860F7F9C7DF8FD" bold="true" box="[151,297,1808,1832]" pageId="28" pageNumber="479">FIGURE 18.</emphasis>
SEM and images of
<taxonomicName id="B5FE14F4E36C25537C3C0F7E9E5BF8FC" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[557,783,1809,1833]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="28" pageNumber="479" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36C25537C3C0F7E9E5BF8FC" box="[557,783,1809,1833]" italics="true" pageId="28" pageNumber="479">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36C25537D0E0F7E9E23F8FD" box="[799,887,1809,1832]" pageId="28" pageNumber="479" rank="species">sp. nov.</taxonomicNameLabel>
(NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups
<emphasis id="408AB365E36C25537FFC0F129F17F841" box="[493,579,1917,1940]" italics="true" pageId="28" pageNumber="479">vis-à-vis</emphasis>
, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger.
</paragraph>
</caption>
<paragraph id="72416F77E36D25527ED608F89EEEFE5C" blockId="29.[151,1437,151,2013]" pageId="29" pageNumber="480">
Abdominal chaetigers shorter in anterior abdomen but lengthening towards posterior (
<figureCitation id="EAC573F2E36D25527AB108F8985EFF64" box="[1184,1290,151,177]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="29" pageNumber="480">Fig. 16A</figureCitation>
). Abdominal parapodia with large rounded triangular to spatulate lateral lamellae (edges of lamellae minutely wavy in anterior abdomen) of about equal size in both rami; basally constricted (
<figureCitation id="EAC573F2E36D25527D7608B09E86FF2C" box="[871,978,223,249]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="29" pageNumber="480">Figs 14L</figureCitation>
;
<figureCitation id="EAC573F2E36D25527DCF08B19958FF2C" box="[990,1036,222,249]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="29" pageNumber="480">15F</figureCitation>
;
<figureCitation id="EAC573F2E36D25527A0808B0991EFF2C" box="[1049,1098,223,249]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="29" pageNumber="480">16E</figureCitation>
;
<figureCitation id="EAC573F2E36D25527A4708B099F0FF2C" box="[1110,1188,223,249]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="29" pageNumber="480">17E, F</figureCitation>
). Abdominal lamellae reduce to slender digitiform on extreme posterior chaetigers (
<figureCitation id="EAC573F2E36D25527D43096C9EE3FEC8" box="[850,951,259,285]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="29" pageNumber="480">Fig. 16F</figureCitation>
). Postchaetal expansion of lateral lamellae behind chaetal rows distinct, triangular (
<figureCitation id="EAC573F2E36D25527C7D09489F8DFE94" box="[620,729,295,321]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="29" pageNumber="480">Figs 14L</figureCitation>
;
<figureCitation id="EAC573F2E36D25527CF609489E4CFE94" box="[743,792,295,321]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="29" pageNumber="480">17E</figureCitation>
). Expansion reducing in size towards posterior but still evident until ten chaetigers before pygidium. Triangular processes (DML, VML) present at inner margins of chaetal rows, long, present until approximately ten chaetigers before pygidium.
</paragraph>
<paragraph id="72416F77E36D25527ED609FC9CB0FD24" blockId="29.[151,1437,151,2013]" pageId="29" pageNumber="480">
Abdominal chaetae tridentate hooded hooks (
<figureCitation id="EAC573F2E36D25527CC609FC9E3CFE78" box="[727,872,403,429]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="29" pageNumber="480">Figs 14O, P</figureCitation>
;
<figureCitation id="EAC573F2E36D25527D6909FC9EFFFE78" box="[888,939,403,429]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="29" pageNumber="480">17G</figureCitation>
;
<figureCitation id="EAC573F2E36D25527DAA09FC9942FE78" box="[955,1046,403,429]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="29" pageNumber="480">18L, M</figureCitation>
), approximately ten per ramus in anterior abdomen, in two groups
<emphasis id="408AB365E36D25527C1409D89F30FE04" box="[517,612,439,465]" italics="true" pageId="29" pageNumber="480">vis-à-vis</emphasis>
(
<figureCitation id="EAC573F2E36D25527C6309D89F89FE04" box="[626,733,439,465]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="29" pageNumber="480">Figs 17H</figureCitation>
;
<figureCitation id="EAC573F2E36D25527CF609D89E43FE04" box="[743,791,439,465]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="29" pageNumber="480">18L</figureCitation>
), all of a similar size. Group at outer margin of ramus with approximately twice the number of hooks. Hooks reducing to six or seven per ramus towards posterior. Lamellae of each ramus internally supported by a single curved abdominal support (acicula) chaeta (
<figureCitation id="EAC573F2E36D25527AAA0990987DFDCC" box="[1211,1321,511,537]" captionStart="FIGURE 14" captionStartId="24.[151,250,1776,1800]" captionTargetBox="[273,1346,186,1751]" captionTargetId="figure-27@24.[238,1350,181,1752]" captionTargetPageId="24" captionText="FIGURE 14. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratype,A; NMW.Z.2022.001.0007, Paratype, B, MQ; NMW.Z.2022.001.0002, Holotype, CL). A, anterior region (prostomium and chaetigers 110), dorsal view; B, prostomium, dorsal view; CL, parapodia of chaetigers 110 respectively, anterior views; M, outer capillary notochaetae of chaetiger 9; N, mid-ramus capillary notochaetae of chaetiger 9; O, tridentate abdominal hooded hook, oblique-lateral view; P, tridentate abdominal hooded hook, frontal view; Q, acicular chaeta from chaetiger 11, lateral view.Ac = acicular chaeta, BO = burrowing organ, Neuro = neuropodia, Noto = notopodia, PE = postchaetal expansion, Pre = prechaetal, PH = prostomial horns, Post = postchaetal, Pp = palp, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235646" httpUri="https://zenodo.org/record/7235646/files/figure.png" pageId="29" pageNumber="480">Figs 14Q</figureCitation>
;
<figureCitation id="EAC573F2E36D25527B26099098DBFDCC" box="[1335,1423,511,537]" captionStart="FIGURE 18" captionStartId="28.[151,250,1808,1832]" captionTargetBox="[227,1361,181,1784]" captionTargetId="figure-27@28.[227,1361,181,1784]" captionTargetPageId="28" captionText="FIGURE 18. SEM and images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, AI; NMW. Z.2022.001.0007, Paratypes, JO). AI, parapodia of chaetigers 19 respectively (A, B, H, I, left-hand side of body; CG, righthand side of body). J, prostomium, dorsal view; K, bilimbate capillary chaetae from chaetiger 9; L, tridentate hooded hooks from chaetiger 11 in two groups vis-à-vis, postchaetal expansion visible behind chaetae, anterior view; M, tridentate hooded hook from chaetiger 11, frontal view; N and O, acicular chaetae from chaetiger 11, anterior view. Ac = acicular chaetae, Neuro = neuropodia; Noto = notopodia, PH = prostomial horns, SDL = superior dorsal lobe, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235658" httpUri="https://zenodo.org/record/7235658/files/figure.png" pageId="29" pageNumber="480">18N, O</figureCitation>
), terminating in a tridentate(?) hooded hook. Exact dentition of each chaeta difficult to assess due to size but apical teeth present. Paired posteriorly open pouches (
<figureCitation id="EAC573F2E36D25527CAE0A289E7BFDB4" box="[703,815,583,609]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="29" pageNumber="480">Figs 16A</figureCitation>
;
<figureCitation id="EAC573F2E36D25527D2F0A289E3EFDB4" box="[830,874,583,609]" captionStart="FIGURE 17" captionStartId="27.[151,250,1745,1769]" captionTargetBox="[337,1250,181,1721]" captionTargetId="figure-19@27.[337,1250,181,1721]" captionTargetPageId="27" captionText="FIGURE 17. SEM images of Magelona boninensis sp. nov. (NMW.Z.2022.001.0008a, Paratypes, A &amp; D; NMW. Z.2022.001.0008b, Paratype, G; NMW.Z.2022.001.0009a, Paratypes, B &amp; C; NMW.Z.2022.001.0009b, Paratypes, E &amp; H; NMW.Z.2022.001.0009c, Paratype, F). A, anterior region (prostomium, palps, and chaetigers 15), dorsal view; B, burrowing organ and non-papillated palp region, ventrolateral view; C, proximal and mid-palp region; D, prostomium, dorsal view; E, abdominal lamellae (showing triangular processes, postchaetal expansion, lateral organ, and hooded hooks), posterior view; F, medially split posteriorly open pouch, lateral view; G, tridentate hooks, lateral view (hoods broken by sonication, for clarity); H, abdominal parapodia, ventrolateral view. BO = burrowing organ, LO = lateral organ, PE= postchaetal expansion, PH = prostomial horns, Pp= palp, TP = triangular processes." figureDoi="http://doi.org/10.5281/zenodo.7235656" httpUri="https://zenodo.org/record/7235656/files/figure.png" pageId="29" pageNumber="480">17F</figureCitation>
) present on consecutive segments, starting from around chaetigers 3250 (observed on
<specimenCount id="64F8A4FEE36D25527C5A0A049FB2FD50" box="[587,742,619,645]" pageId="29" pageNumber="480" type="generic">20 specimens</specimenCount>
, remaining specimens too short to observe pouches). Pouches present for
<typeStatus id="AD45D1D5E36D25527F060AE09C2DFD7C" box="[279,377,655,681]" pageId="29" pageNumber="480" type="holotype">holotype</typeStatus>
on chaetigers 4065 on right-hand side of body, and chaetigers 4265 on left. Pouches appear as simple folds, medially split, present until approximately eight chaetigers from the pygidium (observed from posterior fragment,
<figureCitation id="EAC573F2E36D25527F640AB89C83FD24" box="[373,471,727,753]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="29" pageNumber="480">Fig. 16F</figureCitation>
).
</paragraph>
<paragraph id="72416F77E36D25527ED60A94980BFCC0" blockId="29.[151,1437,151,2013]" box="[199,1375,763,789]" pageId="29" pageNumber="480">
Eggs present in
<specimenCount id="64F8A4FEE36D25527F6A0A949F48FCC0" box="[379,540,763,789]" pageId="29" pageNumber="480" type="generic">ten specimens</specimenCount>
, approximately 70 μm in diameter (clearly visible from chaetigers 2743).
</paragraph>
<paragraph id="72416F77E36D25527ED60B709F3CFC88" blockId="29.[151,1437,151,2013]" pageId="29" pageNumber="480">
Posterior fragment with two long, digitiform pygidial cirri either side of a rounded-triangular pygidium; small, rounded ventrally placed anus (
<figureCitation id="EAC573F2E36D25527FE60B2C9F0FFC88" box="[503,603,835,861]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="29" pageNumber="480">Fig. 16F</figureCitation>
).
</paragraph>
<paragraph id="72416F77E36D25527ED60B09994CFBC4" blockId="29.[151,1437,151,2013]" pageId="29" pageNumber="480">
<emphasis id="408AB365E36D25527ED60B099C74FC55" bold="true" box="[199,288,870,896]" pageId="29" pageNumber="480">Colour.</emphasis>
No live specimens observed. Colour of preserved specimens uniformly cream in alcohol with light interparapodial abdominal patches (
<figureCitation id="EAC573F2E36D25527C3F0BE49FEFFC70" box="[558,699,906,933]" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="29" pageNumber="480">Figs 15C, E</figureCitation>
;
<figureCitation id="EAC573F2E36D25527CD80BE49FA9FC70" box="[713,765,907,933]" captionStart="FIGURE 16" captionStartId="26.[151,250,1851,1875]" captionTargetBox="[177,1411,181,1826]" captionTargetId="figure-27@26.[177,1411,181,1826]" captionTargetPageId="26" captionText="FIGURE 16. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, D, F; NMW.Z.2022.001.0002, Holotype, B, E; NMW.Z.2022.001.0005, Paratypes, C). AC, E, F, stained with Methyl Green. A, whole specimen, dorsal view; B, anterior region (prostomium and chaetigers 113), lateral view; C, anterior, dorsal view; D, whole specimen, ventral view; E, chaetigers 1823, lateral view (interparapodial patches visible); F, posterior showing pygidium (anal cirri and anus), ventral view. AC = anal cirri, BO = burrowing organ, Pg = pygidium, PH = prostomial horns, Pr = prostomium, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235652" httpUri="https://zenodo.org/record/7235652/files/figure.png" pageId="29" pageNumber="480">16D</figureCitation>
). Methyl Green staining retained for longer period of time on abdomen (almost as transverse bands, with light speckles as interparapodial patches), faint speckled staining apparent at high magnification on thorax (more apparent in posterior thorax, and on ventral surface) (
<figureCitation id="EAC573F2E36D25527B1E0BBC9DFEFBC4" captionStart="FIGURE 15" captionStartId="25.[151,250,1818,1842]" captionTargetBox="[189,1398,181,1794]" captionTargetId="figure-19@25.[189,1398,181,1794]" captionTargetPageId="25" captionText="FIGURE 15. Magelona boninensis sp. nov. (NMW.Z.2022.001.0003, Paratypes, A, B, D; NMW.Z.2022.001.0005, Paratypes, C, E, F,). B, D, F, stained with Methyl Green.A, anterior region (prostomium and chaetigers 19), dorsal view; B, anterior region (prostomium and chaetigers 113), dorsal view; C, thorax and anterior abdomen, dorsal view; D, anterior region (prostomium and chaetigers 17), ventral view; E, whole specimen, dorsal view; F, thoracic-abdominal junction showing ventral swellings, ventrolateral view. Ab = abdomen, BO = burrowing organ, PH = prostomial horns, Pp = palp, Pr = prostomium, VS = ventral swellings, Th = thorax, numbers indicate chaetiger." figureDoi="http://doi.org/10.5281/zenodo.7235648" httpUri="https://zenodo.org/record/7235648/files/figure.png" pageId="29" pageNumber="480">Fig. 15B, D, F</figureCitation>
). Speckled pigmentation along length of palp papillae, and around their bases.
</paragraph>
<paragraph id="72416F77E36D25527ED60C759C6DFB8C" blockId="29.[151,1437,151,2013]" pageId="29" pageNumber="480">
<emphasis id="408AB365E36D25527ED60C759C7EFBE1" bold="true" box="[199,298,1050,1076]" pageId="29" pageNumber="480">Habitat.</emphasis>
<materialsCitation id="C296652AE36D25527F200C749C60FB8C" ID-GBIF-Occurrence="3944665310" country="Japan" county="Bonin Islands" location="Ougiura" municipality="Chichijima Island" pageId="29" pageNumber="480" specimenCount="1" typeStatus="holotype">
<typeStatus id="AD45D1D5E36D25527F200C749C3DFBE0" box="[305,361,1051,1077]" pageId="29" pageNumber="480">Type</typeStatus>
specimens found at low tide at
<location id="772139ACE36D25527CC30C749E7AFBE0" LSID="urn:lsid:plazi:treatment:FA57DE61E36625517E860EF89C1BFF2C:772139ACE36D25527CC30C749E7AFBE0" box="[722,814,1051,1077]" country="Japan" county="Bonin Islands" municipality="Chichijima Island" name="Ougiura" pageId="29" pageNumber="480">Ougiura</location>
and
<location id="772139ACE36D25527D740C749EE7FBE0" LSID="urn:lsid:plazi:treatment:FA57DE61E36625517E860EF89C1BFF2C:772139ACE36D25527D740C749EE7FBE0" box="[869,947,1051,1077]" country="Japan" county="Bonin Islands" municipality="Chichijima Island" name="Omura" pageId="29" pageNumber="480">Omura</location>
beaches,
<collectingMunicipality id="9225F50DE36D25527A330C7499B9FBE0" box="[1058,1261,1051,1077]" pageId="29" pageNumber="480">Chichijima Island</collectingMunicipality>
,
<collectingCounty id="9B2017FBE36D25527AEB0C7498CCFBE0" box="[1274,1432,1051,1077]" pageId="29" pageNumber="480">Bonin Islands</collectingCounty>
,
<collectingCountry id="0AE92FE7E36D25527E860C509D83FB8C" box="[151,215,1087,1113]" name="Japan" pageId="29" pageNumber="480">Japan</collectingCountry>
(
<figureCitation id="EAC573F2E36D25527EF70C509C7CFB8C" box="[230,296,1087,1113]" captionStart="FIGURE 1" captionStartId="2.[152,255,1599,1623]" captionTargetBox="[164,1423,270,1573]" captionTargetId="figure-72@2.[164,1423,270,1573]" captionTargetPageId="2" captionText="FIGURE 1. Map highlighting the sampling locations around Japan where all observed material was collected." figureDoi="http://doi.org/10.5281/zenodo.7235612" httpUri="https://zenodo.org/record/7235612/files/figure.png" pageId="29" pageNumber="480">Fig. 1</figureCitation>
)
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="3AE43CFCE36D25527ED60C0D9906FBA8" box="[199,1106,1122,1149]" pageId="29" pageNumber="480" type="distribution">
<paragraph id="72416F77E36D25527ED60C0D9906FBA8" blockId="29.[151,1437,151,2013]" box="[199,1106,1122,1149]" pageId="29" pageNumber="480">
<emphasis id="408AB365E36D25527ED60C0D9C35FBA9" bold="true" box="[199,353,1122,1148]" pageId="29" pageNumber="480">Distribution.</emphasis>
<taxonomicName id="B5FE14F4E36D25527F760C0C9F0CFBA8" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[359,600,1123,1149]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36D25527F760C0C9F0CFBA8" box="[359,600,1123,1149]" italics="true" pageId="29" pageNumber="480">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36D25527C4E0C0C9FE1FBA8" box="[607,693,1123,1149]" pageId="29" pageNumber="480" rank="species">sp. nov.</taxonomicNameLabel>
is currently only known from
<collectingCountry id="0AE92FE7E36D25527A1A0C0C991AFBA8" box="[1035,1102,1123,1149]" name="Japan" pageId="29" pageNumber="480">Japan</collectingCountry>
.
</paragraph>
</subSubSection>
<subSubSection id="3AE43CFCE36D25527ED60CE8992CFB74" box="[199,1144,1159,1185]" pageId="29" pageNumber="480" type="etymology">
<paragraph id="72416F77E36D25527ED60CE8992CFB74" blockId="29.[151,1437,151,2013]" box="[199,1144,1159,1185]" pageId="29" pageNumber="480">
<emphasis id="408AB365E36D25527ED60CE89C1AFB74" bold="true" box="[199,334,1159,1185]" pageId="29" pageNumber="480">Etymology.</emphasis>
The specific name refers to the
<typeStatus id="AD45D1D5E36D25527CA40CE89FB1FB74" box="[693,741,1159,1185]" pageId="29" pageNumber="480">type</typeStatus>
locality of the Bonin Islands,
<collectingCountry id="0AE92FE7E36D25527A290CE8992CFB74" box="[1080,1144,1159,1185]" name="Japan" pageId="29" pageNumber="480">Japan</collectingCountry>
</paragraph>
</subSubSection>
<subSubSection id="3AE43CFCE36D25517ED60CC49C1BFF2C" lastPageId="30" lastPageNumber="481" pageId="29" pageNumber="480" type="discussion">
<paragraph id="72416F77E36D25527ED60CC49C86FA30" blockId="29.[151,1437,151,2013]" pageId="29" pageNumber="480">
<emphasis id="408AB365E36D25527ED60CC49C6FFB10" bold="true" box="[199,315,1195,1221]" pageId="29" pageNumber="480">Remarks.</emphasis>
Nineteen species share morphological similarities with
<taxonomicName id="B5FE14F4E36D25527DA00CC499F6FB10" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[945,1186,1195,1221]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36D25527DA00CC499F6FB10" box="[945,1186,1195,1221]" italics="true" pageId="29" pageNumber="480">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36D25527AB80CC49854FB10" box="[1193,1280,1195,1221]" pageId="29" pageNumber="480" rank="species">sp. nov.</taxonomicNameLabel>
in possessing distinct prostomial horns, and in the nature of the thoracic lamellae:
<taxonomicName id="B5FE14F4E36D25527DAA0CA09CF1FAD8" authority="Magalhaes, BaileyBrock &amp; Watling, 2018" authorityName="Magalhaes, BaileyBrock &amp; Watling" authorityYear="2018" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="alexandrae">
<emphasis id="408AB365E36D25527DAA0CA099E1FB3C" box="[955,1205,1231,1257]" italics="true" pageId="29" pageNumber="480">Magelona alexandrae</emphasis>
Magalhães, BaileyBrock &amp; Watling, 2018
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527FA20C9C9F13FAD8" authorityName="Magalhaes, Bailey-Brock &amp; Watling" authorityYear="2018" box="[435,583,1267,1293]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="anuheone">
<emphasis id="408AB365E36D25527FA20C9C9F13FAD8" box="[435,583,1267,1293]" italics="true" pageId="29" pageNumber="480">M. anuheone</emphasis>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527C460C9C9978FAD8" authority="Hartman &amp; Reish, 1950" authorityName="Hartman &amp; Reish" authorityYear="1950" box="[599,1068,1266,1293]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="cerae">
<emphasis id="408AB365E36D25527C460C9C9E44FAD9" box="[599,784,1267,1293]" italics="true" pageId="29" pageNumber="480">Magelona cerae</emphasis>
<bibRefCitation id="166F1286E36D25527D080C9C9978FAD8" author="Hartman, O. &amp; Reish, D. J." box="[793,1068,1266,1293]" pageId="29" pageNumber="480" pagination="1 - 64" refId="ref21105" refString="Hartman, O. &amp; Reish, D. J. (1950) The marine annelids of Oregon. Oregon State Monographs Studies in Zoology, 6, 1 - 64." type="journal article" year="1950">Hartman &amp; Reish, 1950</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527A2B0C9C9F55FAE4" authority="Magalhaes, Bailey-Brock &amp; Watling, 2018" authorityName="Magalhaes, Bailey-Brock &amp; Watling" authorityYear="2018" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="cinthyae">
<emphasis id="408AB365E36D25527A2B0C9C9847FAD8" box="[1082,1299,1267,1293]" italics="true" pageId="29" pageNumber="480">Magelona cinthyae</emphasis>
<bibRefCitation id="166F1286E36D25527B0D0C9C9F55FAE4" author="Magalhaes, W. &amp; Bailey-Brock, J. &amp; Watling, L." pageId="29" pageNumber="480" pagination="379 - 396" refId="ref23198" refString="Magalhaes, W., Bailey-Brock, J. &amp; Watling, L. (2018) Four new species of Magelona (Annelida: Magelonidae) from Easter Island, Guam and Hawaii. Zootaxa, 4457 (3), 379 - 396. https: // doi. org / 10.11646 / zootaxa. 4457.3.2" type="journal article" year="2018">Magalhães, Bailey-Brock &amp; Watling, 2018</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527C030D789FC7FAE5" authorityName="Wesenberg-Lund" authorityYear="1949" box="[530,659,1303,1328]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="cornuta">
<emphasis id="408AB365E36D25527C030D789FC7FAE5" box="[530,659,1303,1328]" italics="true" pageId="29" pageNumber="480">M. cornuta</emphasis>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527CB60D789E0DFAE4" authorityName="Gallardo" authorityYear="1968" box="[679,857,1303,1329]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="crenulifrons">
<emphasis id="408AB365E36D25527CB60D789E0DFAE4" box="[679,857,1303,1329]" italics="true" pageId="29" pageNumber="480">M. crenulifrons</emphasis>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527D7D0D7898C3FAE4" authority="Mortimer &amp; Mackie, 2003" authorityName="Mortimer &amp; Mackie" authorityYear="2003" box="[876,1431,1303,1329]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="gemmata">
<emphasis id="408AB365E36D25527D7D0D789905FAE5" box="[876,1105,1303,1329]" italics="true" pageId="29" pageNumber="480">Magelona gemmata</emphasis>
<bibRefCitation id="166F1286E36D25527A4D0D7898C3FAE4" author="Mortimer, K. &amp; Mackie, A. S. Y." box="[1116,1431,1303,1329]" pageId="29" pageNumber="480" pagination="163 - 173" refId="ref24020" refString="Mortimer, K. &amp; Mackie, A. S. Y. (2003) The Magelonidae (Annelida: Polychaeta) from the Seychelles, with the description of three new species. Hydrobiologia, 496 (1 - 3), 163 - 173. https: // doi. org / 10.1023 / a: 1026136613278" type="journal article" year="2003">Mortimer &amp; Mackie, 2003</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527E860D549F92FA80" authority="Mortimer, Gil &amp; Fiege, 2011" authorityName="Mortimer, Gil &amp; Fiege" authorityYear="2011" box="[151,710,1339,1365]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="lusitanica">
<emphasis id="408AB365E36D25527E860D549C29FA80" box="[151,381,1339,1365]" italics="true" pageId="29" pageNumber="480">Magelona lusitanica</emphasis>
<bibRefCitation id="166F1286E36D25527F920D549F92FA80" author="Mortimer, K. &amp; Gil, J. &amp; Fiege, D." box="[387,710,1339,1365]" pageId="29" pageNumber="480" pagination="124 - 139" refId="ref23884" refString="Mortimer, K., Gil, J. &amp; Fiege, D. (2011) Portuguese Magelona (Annelida: Magelonidae) with a description of a new species, a re-description of Magelona wilsoni Glemarec, 1966 and a key to adult Magelonidae from European waters. Italian Journal of Zoology, 78 (S 1), 124 - 139. https: // doi. org / 10.1080 / 11250003.2011.583449" type="journal article" year="2011">Mortimer, Gil &amp; Fiege, 2011</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527CC00D5498CCFA80" authority="Hernandez-Alcantara &amp; Solis-Weiss, 2000" authorityName="Hernandez-Alcantara &amp; Solis-Weiss" authorityYear="2000" box="[721,1432,1339,1365]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="marianae">
<emphasis id="408AB365E36D25527CC00D549EE0FA81" box="[721,948,1339,1365]" italics="true" pageId="29" pageNumber="480">Magelona marianae</emphasis>
<bibRefCitation id="166F1286E36D25527DAB0D5498CCFA80" author="Hernandez-Alcantara, P. &amp; Solis-Weiss, V." box="[954,1432,1339,1365]" pageId="29" pageNumber="480" pagination="625 - 644" refId="ref21138" refString="Hernandez-Alcantara, P. &amp; Solis-Weiss, V. (2000) Magelonidae from the Mexican Pacific and northern Gulf of Mexico, with the description of a new genus (Meredithia) and four new species. Bulletin of Marine Science, 67 (1), 625 - 644." type="journal article" year="2000">Hernández-Alcántara &amp; Solís-Weiss, 2000</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527E860D309E79FAAC" authority="Mortimer, Cassa, Martin &amp; Gil, 2012" authorityName="Mortimer, Cassa, Martin &amp; Gil" authorityYear="2012" box="[151,813,1375,1401]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="montera">
<emphasis id="408AB365E36D25527E860D309C23FAAD" box="[151,375,1375,1401]" italics="true" pageId="29" pageNumber="480">Magelona montera</emphasis>
<bibRefCitation id="166F1286E36D25527F910D309E79FAAC" author="Mortimer, K. &amp; Cassa, S. &amp; Martin, D. &amp; Gil, J." box="[384,813,1375,1401]" pageId="29" pageNumber="480" pagination="1 - 43" refId="ref23745" refString="Mortimer, K., Cassa, S., Martin, D. &amp; Gil, J. (2012) New records and new species of Magelonidae (Polychaeta) from the Arabian Peninsula, with a re-description of Magelona pacifica and a discussion on the magelonid buccal region. Zootaxa, 3331 (1), 1 - 43. https: // doi. org / 10.11646 / zootaxa. 3331.1.1" type="journal article" year="2012">Mortimer, Cassà, Martin &amp; Gil, 2012</bibRefCitation>
</taxonomicName>
;
<emphasis id="408AB365E36D25527D280D309E9EFAAC" box="[825,970,1375,1401]" italics="true" pageId="29" pageNumber="480">
<taxonomicName id="B5FE14F4E36D25527D280D309E91FAAC" authorityName="Monro" authorityYear="1933" box="[825,965,1375,1401]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="pacifica">M. pacifica</taxonomicName>
,
</emphasis>
<taxonomicName id="B5FE14F4E36D25527DC30D3098C3FAAC" authority="Mohammad, 1970" authorityName="Mohammad" authorityYear="1970" box="[978,1431,1375,1401]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="pulchella">
<emphasis id="408AB365E36D25527DC30D3099E9FAAC" box="[978,1213,1375,1401]" italics="true" pageId="29" pageNumber="480">Magelona pulchella</emphasis>
<bibRefCitation id="166F1286E36D25527AD70D3098C3FAAC" author="Mohammad, M." box="[1222,1431,1375,1401]" pageId="29" pageNumber="480" pagination="303 - 307" refId="ref23584" refString="Mohammad, M. (1970) On two new polychaetous annelids from Kuwait. Zoologischer Anzeiger, 185 (3 / 4), 303 - 307." type="journal article" year="1970">Mohammad, 1970</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527E860DEC9E47FA48" authority="Mortimer, Cassa, Martin &amp; Gil, 2012" authorityName="Mortimer, Cassa, Martin &amp; Gil" authorityYear="2012" box="[151,787,1411,1437]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="sinbadi">
<emphasis id="408AB365E36D25527E860DEC9C3CFA48" box="[151,360,1411,1437]" italics="true" pageId="29" pageNumber="480">Magelona sinbadi</emphasis>
<bibRefCitation id="166F1286E36D25527F7E0DEC9E47FA48" author="Mortimer, K. &amp; Cassa, S. &amp; Martin, D. &amp; Gil, J." box="[367,787,1411,1437]" pageId="29" pageNumber="480" pagination="1 - 43" refId="ref23745" refString="Mortimer, K., Cassa, S., Martin, D. &amp; Gil, J. (2012) New records and new species of Magelonidae (Polychaeta) from the Arabian Peninsula, with a re-description of Magelona pacifica and a discussion on the magelonid buccal region. Zootaxa, 3331 (1), 1 - 43. https: // doi. org / 10.11646 / zootaxa. 3331.1.1" type="journal article" year="2012">Mortimer, Cassà, Martin &amp; Gil, 2012</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527D0C0DEC9D87FA14" authority="Hernandez-Alcantara &amp; Solis-Weiss, 2000" authorityName="Hernandez-Alcantara &amp; Solis-Weiss" authorityYear="2000" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="spinifera">
<emphasis id="408AB365E36D25527D0C0DEC9EADFA48" box="[797,1017,1411,1437]" italics="true" pageId="29" pageNumber="480">Magelona spinifera</emphasis>
<bibRefCitation id="166F1286E36D25527DEE0DEC9D87FA14" author="Hernandez-Alcantara, P. &amp; Solis-Weiss, V." pageId="29" pageNumber="480" pagination="625 - 644" refId="ref21138" refString="Hernandez-Alcantara, P. &amp; Solis-Weiss, V. (2000) Magelonidae from the Mexican Pacific and northern Gulf of Mexico, with the description of a new genus (Meredithia) and four new species. Bulletin of Marine Science, 67 (1), 625 - 644." type="journal article" year="2000">Hernández-Alcántara &amp; Solís-Weiss, 2000</bibRefCitation>
</taxonomicName>
;
<taxonomicName id="B5FE14F4E36D25527EF10DC89E8EFA14" authority="Hernandez-Alcantara &amp; Solis-Weiss, 2000" authorityName="Hernandez-Alcantara &amp; Solis-Weiss" authorityYear="2000" box="[224,986,1447,1473]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="tehuanensis">
<emphasis id="408AB365E36D25527EF10DC89CBDFA14" box="[224,489,1447,1473]" italics="true" pageId="29" pageNumber="480">Magelona tehuanensis</emphasis>
<bibRefCitation id="166F1286E36D25527FE30DC89E8EFA14" author="Hernandez-Alcantara, P. &amp; Solis-Weiss, V." box="[498,986,1447,1473]" pageId="29" pageNumber="480" pagination="625 - 644" refId="ref21138" refString="Hernandez-Alcantara, P. &amp; Solis-Weiss, V. (2000) Magelonidae from the Mexican Pacific and northern Gulf of Mexico, with the description of a new genus (Meredithia) and four new species. Bulletin of Marine Science, 67 (1), 625 - 644." type="journal article" year="2000">Hernández-Alcántara &amp; Solís-Weiss, 2000</bibRefCitation>
</taxonomicName>
; and
<taxonomicName id="B5FE14F4E36D25527A080DC899B7FA14" box="[1049,1251,1447,1473]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="undefined-d">
<emphasis id="408AB365E36D25527A080DC899DFFA14" box="[1049,1163,1447,1473]" italics="true" pageId="29" pageNumber="480">Magelona</emphasis>
spp. D
</taxonomicName>
, G, K, and L of
<bibRefCitation id="166F1286E36D25527E860DA49C99FA30" author="Uebelacker, J. M. &amp; Jones, M. L." box="[151,461,1483,1509]" pageId="29" pageNumber="480" refId="ref26463" refString="Uebelacker, J. M. &amp; Jones, M. L. (1984) Family Magelonidae. In: Uebelacker, J. M. &amp; Johnson, P. G. (Eds.), Taxonomic guide to the polychaetes of the northern Gulf of Mexico, 7.1 - 7.29. Final report to the Minerals Management Service, contract 14 - 12 - 001 - 29091. Barry A. Vittor and Associates, Mobile, Alabama." type="book" year="1984">Uebelacker &amp; Jones (1984)</bibRefCitation>
.
</paragraph>
<paragraph id="72416F77E36D25517ED60D809C1BFF2C" blockId="29.[151,1437,151,2013]" lastBlockId="30.[151,1436,151,249]" lastPageId="30" lastPageNumber="481" pageId="29" pageNumber="480">
The following species differ from the new species in possessing bidentate and not tridentate hooded hooks of the abdomen:
<taxonomicName id="B5FE14F4E36D25527F260E7C9CE3F9F8" authorityName="Monro" authorityYear="1933" box="[311,439,1555,1581]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="pacifica">
<emphasis id="408AB365E36D25527F260E7C9CE3F9F8" box="[311,439,1555,1581]" italics="true" pageId="29" pageNumber="480">M. pacifica</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527FD70E7C9F03F9F9" authorityName="Hernandez-Alcantara &amp; Solis-Weiss" authorityYear="2000" box="[454,599,1555,1580]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="marianae">
<emphasis id="408AB365E36D25527FD70E7C9F03F9F9" box="[454,599,1555,1580]" italics="true" pageId="29" pageNumber="480">M. marianae</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527C770E7C9E47F9F8" authorityName="Gallardo" authorityYear="1968" box="[614,787,1555,1581]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="crenulifrons">
<emphasis id="408AB365E36D25527C770E7C9E47F9F8" box="[614,787,1555,1581]" italics="true" pageId="29" pageNumber="480">M. crenulifrons</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527D300E7C9EB0F9F8" box="[801,996,1555,1581]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="undefined-d">
<emphasis id="408AB365E36D25527D300E7C9EC7F9F8" box="[801,915,1555,1581]" italics="true" pageId="29" pageNumber="480">Magelona</emphasis>
spp. D
</taxonomicName>
and G,
<taxonomicName id="B5FE14F4E36D25527A2F0E7C99F6F9F9" authorityName="Hartman &amp; Reish" authorityYear="1950" box="[1086,1186,1555,1580]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="cerae">
<emphasis id="408AB365E36D25527A2F0E7C99F6F9F9" box="[1086,1186,1555,1580]" italics="true" pageId="29" pageNumber="480">M. cerae</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527AA00E7C986BF9F8" authorityName="Mohammad" authorityYear="1970" box="[1201,1343,1555,1581]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="pulchella">
<emphasis id="408AB365E36D25527AA00E7C986BF9F8" box="[1201,1343,1555,1581]" italics="true" pageId="29" pageNumber="480">M. pulchella</emphasis>
</taxonomicName>
, and
<taxonomicName id="B5FE14F4E36D25527B6F0E7C9DAFF984" authorityName="Hernandez-Alcantara &amp; Solis-Weiss" authorityYear="2000" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="spinifera">
<emphasis id="408AB365E36D25527B6F0E7C9DAFF984" italics="true" pageId="29" pageNumber="480">M. spinifera</emphasis>
</taxonomicName>
. The latter species and
<taxonomicName id="B5FE14F4E36D25527C1D0E589F90F984" box="[524,708,1591,1617]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="undefined-d">
<emphasis id="408AB365E36D25527C1D0E589F2AF984" box="[524,638,1591,1617]" italics="true" pageId="29" pageNumber="480">Magelona</emphasis>
sp. D
</taxonomicName>
also differing in possessing spines of the abdominal parapodia. The following species differ from
<taxonomicName id="B5FE14F4E36D25527C020E349E57F9A0" authority="Taylor &amp; Mortimer &amp; Jimi, 2022" authorityName="Taylor &amp; Mortimer &amp; Jimi" authorityYear="2022" box="[531,771,1627,1653]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="boninensis" status="sp. nov.">
<emphasis id="408AB365E36D25527C020E349E57F9A0" box="[531,771,1627,1653]" italics="true" pageId="29" pageNumber="480">Magelona boninensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="5BB90E1EE36D25527D180E349E0AF9A0" box="[777,862,1627,1653]" pageId="29" pageNumber="480" rank="species">sp. nov.</taxonomicNameLabel>
in possessing prostomia which are similar in length to width, and thoracic notopodial lamellae which are smooth:
<taxonomicName id="B5FE14F4E36D25527D710E109E8AF94D" authorityName="Wesenberg-Lund" authorityYear="1949" box="[864,990,1663,1688]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="cornuta">
<emphasis id="408AB365E36D25527D710E109E8AF94D" box="[864,990,1663,1688]" italics="true" pageId="29" pageNumber="480">M. cornuta</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527DFF0E109921F94C" authorityName="Magalhaes, Bailey-Brock &amp; Watling" authorityYear="2018" box="[1006,1141,1663,1689]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="cinthyae">
<emphasis id="408AB365E36D25527DFF0E109921F94C" box="[1006,1141,1663,1689]" italics="true" pageId="29" pageNumber="480">M. cinthyae</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527A940E10984EF94C" authorityName="Mortimer, Gil &amp; Fiege" authorityYear="2011" box="[1157,1306,1663,1689]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="lusitanica">
<emphasis id="408AB365E36D25527A940E10984EF94C" box="[1157,1306,1663,1689]" italics="true" pageId="29" pageNumber="480">M. lusitanica</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527B3A0E109DE3F968" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="undetermined">
<emphasis id="408AB365E36D25527B3A0E1098C9F94C" box="[1323,1437,1663,1689]" italics="true" pageId="29" pageNumber="480">Magelona</emphasis>
sp.
</taxonomicName>
L, and
<taxonomicName id="B5FE14F4E36D25527F030ECC9CEAF968" authorityName="Hernandez-Alcantara &amp; Solis-Weiss" authorityYear="2000" box="[274,446,1699,1725]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="tehuanensis">
<emphasis id="408AB365E36D25527F030ECC9CEAF968" box="[274,446,1699,1725]" italics="true" pageId="29" pageNumber="480">M. tehuanensis</emphasis>
</taxonomicName>
. The new species shares most similarities with
<taxonomicName id="B5FE14F4E36D25527DF00ECC9937F968" authorityName="Monro" authorityYear="1933" box="[993,1123,1699,1725]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="pacifica">
<emphasis id="408AB365E36D25527DF00ECC9937F968" box="[993,1123,1699,1725]" italics="true" pageId="29" pageNumber="480">M. pacifica</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527A620ECC99A3F969" authorityName="Mortimer, Cassa, Martin &amp; Gil" authorityYear="2012" box="[1139,1271,1699,1724]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="montera">
<emphasis id="408AB365E36D25527A620ECC99A3F969" box="[1139,1271,1699,1724]" italics="true" pageId="29" pageNumber="480">M. montera</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527B160ECC98C2F969" authorityName="Mortimer &amp; Mackie" authorityYear="2003" box="[1287,1430,1699,1724]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="gemmata">
<emphasis id="408AB365E36D25527B160ECC98C2F969" box="[1287,1430,1699,1724]" italics="true" pageId="29" pageNumber="480">M. gemmata</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527E860EA89C08F934" box="[151,348,1735,1761]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="undefined-g">
<emphasis id="408AB365E36D25527E860EA89C5DF934" box="[151,265,1735,1761]" italics="true" pageId="29" pageNumber="480">Magelona</emphasis>
spp. G
</taxonomicName>
and K,
<taxonomicName id="B5FE14F4E36D25527FAB0EA89F67F934" authorityName="Mortimer, Cassa, Martin &amp; Gil" authorityYear="2012" box="[442,563,1735,1761]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="sinbadi">
<emphasis id="408AB365E36D25527FAB0EA89F67F934" box="[442,563,1735,1761]" italics="true" pageId="29" pageNumber="480">M. sinbadi</emphasis>
</taxonomicName>
,
<taxonomicName id="B5FE14F4E36D25527C520EA89F83F934" authorityName="Magalhaes, Bailey-Brock &amp; Watling" authorityYear="2018" box="[579,727,1735,1761]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="anuheone">
<emphasis id="408AB365E36D25527C520EA89F83F934" box="[579,727,1735,1761]" italics="true" pageId="29" pageNumber="480">M. anuheone</emphasis>
</taxonomicName>
, and
<taxonomicName id="B5FE14F4E36D25527D090EA89EE9F934" authorityName="Magalhaes, BaileyBrock &amp; Watling" authorityYear="2018" box="[792,957,1735,1761]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="alexandrae">
<emphasis id="408AB365E36D25527D090EA89EE9F934" box="[792,957,1735,1761]" italics="true" pageId="29" pageNumber="480">M. alexandrae</emphasis>
</taxonomicName>
in possessing prostomia which are longer than wide with distinct prostomial horns which have a degree of separation from the anterior prostomial margin. As noted above
<taxonomicName id="B5FE14F4E36D25527F390F609CFCF8FC" authorityName="Monro" authorityYear="1933" box="[296,424,1807,1833]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="pacifica">
<emphasis id="408AB365E36D25527F390F609CFCF8FC" box="[296,424,1807,1833]" italics="true" pageId="29" pageNumber="480">M. pacifica</emphasis>
</taxonomicName>
differs in the nature of the abdominal hooks.
<taxonomicName id="B5FE14F4E36D25527DBE0F6099D2F8FD" authorityName="Mortimer, Cassa, Martin &amp; Gil" authorityYear="2012" box="[943,1158,1807,1833]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="montera">
<emphasis id="408AB365E36D25527DBE0F6099D2F8FD" box="[943,1158,1807,1833]" italics="true" pageId="29" pageNumber="480">Magelona montera</emphasis>
</taxonomicName>
, from the Western IndoPacific, differs in the shape of the prostomial horns which are laterally rounded.
<taxonomicName id="B5FE14F4E36D25527A1C0F5C99BFF899" authorityName="Mortimer &amp; Mackie" authorityYear="2003" box="[1037,1259,1843,1869]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="gemmata">
<emphasis id="408AB365E36D25527A1C0F5C99BFF899" box="[1037,1259,1843,1869]" italics="true" pageId="29" pageNumber="480">Magelona gemmata</emphasis>
</taxonomicName>
and
<taxonomicName id="B5FE14F4E36D25527B0E0F5C98C1F898" authorityName="Mortimer, Cassa, Martin &amp; Gil" authorityYear="2012" box="[1311,1429,1843,1869]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="sinbadi">
<emphasis id="408AB365E36D25527B0E0F5C98C1F898" box="[1311,1429,1843,1869]" italics="true" pageId="29" pageNumber="480">M. sinbadi</emphasis>
</taxonomicName>
, also from the Western Indo-Pacific, differ from the new species in possessing smooth notopodial thoracic lamellae.
<taxonomicName id="B5FE14F4E36D25527E860F149C2AF840" authorityName="Magalhaes, Bailey-Brock &amp; Watling" authorityYear="2018" box="[151,382,1915,1941]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="anuheone">
<emphasis id="408AB365E36D25527E860F149C2AF840" box="[151,382,1915,1941]" italics="true" pageId="29" pageNumber="480">Magelona anuheone</emphasis>
</taxonomicName>
, from the Eastern Indo-Pacific, and
<taxonomicName id="B5FE14F4E36D25527D310F149E8EF840" box="[800,986,1915,1941]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="undefined-k">
<emphasis id="408AB365E36D25527D310F149EC6F840" box="[800,914,1915,1941]" italics="true" pageId="29" pageNumber="480">Magelona</emphasis>
sp. K
</taxonomicName>
, from the Temperate Northern Atlantic, both also possess smooth notopodial thoracic lamellae, the latter species also differs in the neuropodia of chaetiger 9 which are not triangular as in the new species.
<taxonomicName id="B5FE14F4E36D25527CF10FAC9E8EF808" authorityName="Magalhaes, BaileyBrock &amp; Watling" authorityYear="2018" box="[736,986,1987,2013]" class="Polychaeta" family="Magelonidae" genus="Magelona" kingdom="Animalia" pageId="29" pageNumber="480" phylum="Annelida" rank="species" species="alexandrae">
<emphasis id="408AB365E36D25527CF10FAC9E8EF808" box="[736,986,1987,2013]" italics="true" pageId="29" pageNumber="480">Magelona alexandrae</emphasis>
</taxonomicName>
, from the Eastern Indo-Pacific, shares many similarities with the new species, however, possesses a smooth prostomial margin and crenulate abdominal lamellae. Additionally, the margins of the notopodial thoracic lamellae are much more distinctly crenulate than in the new species.
</paragraph>
</subSubSection>
</treatment>
</document>