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<document id="84474821BFA36A93E6353DE6D85D94D4" ID-DOI="10.11646/zootaxa.4048.1.8" ID-GBIF-Dataset="8527c4ae-6580-4d5d-a6b5-d836517af30d" ID-ISSN="1175-5326" ID-Zenodo-Dep="242519" ID-ZooBank="B8764598-61D9-4F16-980C-887B7BD344B6" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1461342283647" checkinUser="plazi" docAuthor="Hernández-Alcántara, Pablo, Cruz-Pérez, Ismael Narciso &amp; Solís-Weiss, Vivianne" docDate="2015" docId="0385CE33FFC8FFCDFF257D9BFEA8F955" docLanguage="en" docName="zt04048p139.pdf" docOrigin="Zootaxa 4048 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Labrorostratus caribensis Hernández-Alcántara, Cruz-Pérez &amp; Solís-Weiss, 2015, new species" docType="treatment" docVersion="8" lastPageNumber="135" masterDocId="FFBCB64BFFCEFFC5FFB27D0CFA31FFF4" masterDocTitle="Labrorostratus caribensis, a new oenonid polychaete from the Grand Caribbean living in the body cavity of a nereidid, with emendation of the genus" masterLastPageNumber="139" masterPageNumber="127" pageNumber="133" updateTime="1698620432866" updateUser="plazi">
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<mods:title id="818685CAD4CAFF0EE326B313A48FBFDC">Labrorostratus caribensis, a new oenonid polychaete from the Grand Caribbean living in the body cavity of a nereidid, with emendation of the genus</mods:title>
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<mods:namePart id="D697377FD62A08BD79621AA4B465BA93">Hernández-Alcántara, Pablo</mods:namePart>
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<mods:namePart id="A9C6674AEC08C0092B4B37305B7379B9">Cruz-Pérez, Ismael Narciso</mods:namePart>
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<mods:namePart id="97093057DED3040ECFA8E77D8ABE3B52">Solís-Weiss, Vivianne</mods:namePart>
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<mods:title id="1546BE621B20AAD87B6B304E04DF4D06">Zootaxa</mods:title>
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<mods:date id="A1DE93DB30C6EC8070CBD9AB01F24B7B">2015</mods:date>
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<treatment id="0385CE33FFC8FFCDFF257D9BFEA8F955" ID-DOI="http://doi.org/10.5281/zenodo.5627925" ID-GBIF-Taxon="119645341" ID-Zenodo-Dep="5627925" LSID="urn:lsid:plazi:treatment:0385CE33FFC8FFCDFF257D9BFEA8F955" httpUri="http://treatment.plazi.org/id/0385CE33FFC8FFCDFF257D9BFEA8F955" lastPageId="8" lastPageNumber="135" pageId="6" pageNumber="133">
<subSubSection id="C3362CAEFFC8FFC3FF257D9BFB4EFF27" pageId="6" pageNumber="133" type="nomenclature">
<paragraph id="8B937F25FFC8FFC3FF257D9BF855FF46" blockId="6.[151,612,151,211]" box="[151,612,151,178]" pageId="6" pageNumber="133">
<heading id="D0DBC849FFC8FFC3FF257D9BF855FF46" bold="true" box="[151,612,151,178]" fontSize="11" level="1" pageId="6" pageNumber="133" reason="1">
<emphasis id="B958A337FFC8FFC3FF257D9BF855FF46" bold="true" box="[151,612,151,178]" pageId="6" pageNumber="133">
<taxonomicName id="4C2C04A6FFC8FFC3FF257D9BFBFCFF45" ID-CoL="3RKW4" box="[151,461,151,177]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="caribensis" status="sp. nov.">
<emphasis id="B958A337FFC8FFC3FF257D9BFBFCFF45" bold="true" box="[151,461,151,177]" italics="true" pageId="6" pageNumber="133">Labrorostratus caribensis</emphasis>
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<taxonomicNameLabel id="A26B1E4CFFC8FFC3FE667D94F855FF46" box="[468,612,152,178]" pageId="6" pageNumber="133" rank="species">new species</taxonomicNameLabel>
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<paragraph id="8B937F25FFC8FFC3FF257DB6FB4EFF27" blockId="6.[151,612,151,211]" box="[151,383,186,211]" pageId="6" pageNumber="133">
<figureCitation id="131763A0FFC8FFC3FF257DB6FACAFF27" box="[151,251,186,211]" captionStart="FIGURE 1" captionStartId="7.[151,250,1864,1886]" captionTargetBox="[182,1407,213,1796]" captionTargetId="figure@7.[160,1426,195,1812]" captionTargetPageId="7" captionText="FIGURE 1. Labrorostratus caribensis n. sp. (A) Anterior region, lateral view. (B) Mandibles, ventral view. (C) maxillary carriers fused, ventral view. (D) Parapodium 6. (E) Parapodium 15. (F) Parapodium 30. (G) Parapodium 80. Scale bars: A = 250 µm; B = 100 µm; C = 150 µm; D-F = 100 µm; G = 150 µm." httpUri="https://zenodo.org/record/242520/files/figure.png" pageId="6" pageNumber="133">Figures 1</figureCitation>
AG, 2AF
</paragraph>
</subSubSection>
<subSubSection id="C3362CAEFFC8FFC3FF257C0EFBD3FE97" pageId="6" pageNumber="133" type="materials_examined">
<paragraph id="8B937F25FFC8FFC3FF257C0EFBD3FE97" blockId="6.[151,1437,258,2011]" pageId="6" pageNumber="133">
<emphasis id="B958A337FFC8FFC3FF257C0EFB7BFEEF" bold="true" box="[151,330,258,283]" pageId="6" pageNumber="133">
<typeStatus id="5497C187FFC8FFC3FF257C0EFAE3FEEF" box="[151,210,258,283]" pageId="6" pageNumber="133">Type</typeStatus>
material.
</emphasis>
<typeStatus id="5497C187FFC8FFC3FEE47C0EFB8FFEEF" box="[342,446,258,283]" pageId="6" pageNumber="133" type="holotype">Holotype</typeStatus>
(CNP
<collectionCode id="ED3DE7E0FFC8FFC3FDAA7C0FF850FEEF" box="[536,609,259,283]" pageId="6" pageNumber="133">ICML</collectionCode>
, POH56002), one specimen living in the body cavity of
<taxonomicName id="4C2C04A6FFC8FFC3FA9A7C08FF41FEEF" box="[1320,1392,260,283]" class="Polychaeta" family="Nereididae" genus="Nereis" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FA9A7C08FF41FEEF" box="[1320,1392,260,283]" italics="true" pageId="6" pageNumber="133">Nereis</emphasis>
</taxonomicName>
sp. (
<taxonomicName id="4C2C04A6FFC8FFC3FF2C7C2AFB2EFECB" box="[158,287,294,319]" class="Polychaeta" family="Nereididae" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="133" phylum="Annelida" rank="family">Nereididae</taxonomicName>
), Chinchorro Bank, Mexican Caribbean, Station 5 (
<geoCoordinate id="EE1819E2FFC8FFC3FCE97C2BFE32FECB" box="[859,1027,294,319]" direction="north" orientation="latitude" pageId="6" pageNumber="133" precision="1" value="18.58364">18° 35' 01.1''N</geoCoordinate>
;
<geoCoordinate id="EE1819E2FFC8FFC3FBBC7C2BFE8DFECB" box="[1038,1212,295,319]" direction="west" orientation="longitude" pageId="6" pageNumber="133" precision="1" value="-87.37453">87° 22' 28.3''W</geoCoordinate>
);
<date id="FF9259E5FFC8FFC3FB7D7C2BFF5FFECB" box="[1231,1390,294,319]" pageId="6" pageNumber="133" value="2008-04-13">13 April 2008</date>
;
<quantity id="4CD4D2C0FFC8FFC3FACB7C2AFA9CFE96" metricMagnitude="0" metricUnit="m" metricValue="4.5" pageId="6" pageNumber="133" unit="m" value="4.5">4.5 m</quantity>
depth; coll. V. Solís-Weiss.
</paragraph>
</subSubSection>
<subSubSection id="C3362CAEFFC8FFC3FF757C62F901FBA3" pageId="6" pageNumber="133" type="description">
<paragraph id="8B937F25FFC8FFC3FF757C62F9C9FC8B" blockId="6.[151,1437,258,2011]" pageId="6" pageNumber="133">
<emphasis id="B958A337FFC8FFC3FF757C62FB68FE73" bold="true" box="[199,345,366,391]" pageId="6" pageNumber="133">Description.</emphasis>
Complete specimen with 153 segments,
<quantity id="4CD4D2C0FFC8FFC3FC867C63F9B7FE72" box="[820,902,367,391]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="6" pageNumber="133" unit="mm" value="10.0">10 mm</quantity>
long and
<quantity id="4CD4D2C0FFC8FFC3FC4F7C62FE67FE72" box="[1021,1110,366,391]" metricMagnitude="-4" metricUnit="m" metricValue="5.0" pageId="6" pageNumber="133" unit="mm" value="0.5">0.5 mm</quantity>
wide, not including chaetae (
<figureCitation id="131763A0FFC8FFC3FF2D7C9EFAD0FE5F" box="[159,225,402,427]" captionStart="FIGURE 1" captionStartId="7.[151,250,1864,1886]" captionTargetBox="[182,1407,213,1796]" captionTargetId="figure@7.[160,1426,195,1812]" captionTargetPageId="7" captionText="FIGURE 1. Labrorostratus caribensis n. sp. (A) Anterior region, lateral view. (B) Mandibles, ventral view. (C) maxillary carriers fused, ventral view. (D) Parapodium 6. (E) Parapodium 15. (F) Parapodium 30. (G) Parapodium 80. Scale bars: A = 250 µm; B = 100 µm; C = 150 µm; D-F = 100 µm; G = 150 µm." httpUri="https://zenodo.org/record/242520/files/figure.png" pageId="6" pageNumber="133">Fig. 1</figureCitation>
A). Body slender, cylindrical. Color of preserved specimen light brown. Prostomium conical, larger than wide, flattened dorsoventrally, without appendages. Four rounded black eyes near posterior edge of prostomium, arranged classically in a transverse row, inner pair smaller (
<figureCitation id="131763A0FFC8FFC3FC9C7CD6F95CFE07" box="[814,877,474,499]" captionStart="FIGURE 1" captionStartId="7.[151,250,1864,1886]" captionTargetBox="[182,1407,213,1796]" captionTargetId="figure@7.[160,1426,195,1812]" captionTargetPageId="7" captionText="FIGURE 1. Labrorostratus caribensis n. sp. (A) Anterior region, lateral view. (B) Mandibles, ventral view. (C) maxillary carriers fused, ventral view. (D) Parapodium 6. (E) Parapodium 15. (F) Parapodium 30. (G) Parapodium 80. Scale bars: A = 250 µm; B = 100 µm; C = 150 µm; D-F = 100 µm; G = 150 µm." httpUri="https://zenodo.org/record/242520/files/figure.png" pageId="6" pageNumber="133">Fig. 1</figureCitation>
A). Peristomium with two apodous and achaetous rings, subequal in length, wider than base of prostomium. Mandibles dark-brown, well developed, with no teeth, each strong and wing-shaped; both narrowly joined along median line (
<figureCitation id="131763A0FFC8FFC3FC627F2EFE23FDCF" box="[976,1042,546,571]" captionStart="FIGURE 1" captionStartId="7.[151,250,1864,1886]" captionTargetBox="[182,1407,213,1796]" captionTargetId="figure@7.[160,1426,195,1812]" captionTargetPageId="7" captionText="FIGURE 1. Labrorostratus caribensis n. sp. (A) Anterior region, lateral view. (B) Mandibles, ventral view. (C) maxillary carriers fused, ventral view. (D) Parapodium 6. (E) Parapodium 15. (F) Parapodium 30. (G) Parapodium 80. Scale bars: A = 250 µm; B = 100 µm; C = 150 µm; D-F = 100 µm; G = 150 µm." httpUri="https://zenodo.org/record/242520/files/figure.png" pageId="6" pageNumber="133">Fig. 1</figureCitation>
B). Maxillary apparatus with only maxillary carriers fused, elongated, rod-like, dark-brown, twice as long as mandibles; fangs or distinct maxillary plates absent (
<figureCitation id="131763A0FFC8FFC3FE8D7F66FBB5FD77" box="[319,388,618,643]" captionStart="FIGURE 1" captionStartId="7.[151,250,1864,1886]" captionTargetBox="[182,1407,213,1796]" captionTargetId="figure@7.[160,1426,195,1812]" captionTargetPageId="7" captionText="FIGURE 1. Labrorostratus caribensis n. sp. (A) Anterior region, lateral view. (B) Mandibles, ventral view. (C) maxillary carriers fused, ventral view. (D) Parapodium 6. (E) Parapodium 15. (F) Parapodium 30. (G) Parapodium 80. Scale bars: A = 250 µm; B = 100 µm; C = 150 µm; D-F = 100 µm; G = 150 µm." httpUri="https://zenodo.org/record/242520/files/figure.png" pageId="6" pageNumber="133">Fig. 1</figureCitation>
C). Parapodia well developed throughout, with prechaetal rudimentary lobes, and bluntly conical postchaetal lobes (
<figureCitation id="131763A0FFC8FFC3FE707F82F834FD53" box="[450,517,654,679]" captionStart="FIGURE 1" captionStartId="7.[151,250,1864,1886]" captionTargetBox="[182,1407,213,1796]" captionTargetId="figure@7.[160,1426,195,1812]" captionTargetPageId="7" captionText="FIGURE 1. Labrorostratus caribensis n. sp. (A) Anterior region, lateral view. (B) Mandibles, ventral view. (C) maxillary carriers fused, ventral view. (D) Parapodium 6. (E) Parapodium 15. (F) Parapodium 30. (G) Parapodium 80. Scale bars: A = 250 µm; B = 100 µm; C = 150 µm; D-F = 100 µm; G = 150 µm." httpUri="https://zenodo.org/record/242520/files/figure.png" pageId="6" pageNumber="133">Figs 1</figureCitation>
DG, 2A). First parapodia small, progressively increasing in size, then gradually reducing from mid-body to posterior end. Aciculae yellow, large, one per parapodium, some slightly projecting outside postchaetal lobe. Chaetae simple, limbate, geniculate, with smooth asymmetric wings, tapering to fine tips (
<figureCitation id="131763A0FFC8FFC3FF2D7FF6FAD4FCE7" box="[159,229,762,787]" captionStart="FIGURE 2" captionStartId="8.[151,250,1046,1068]" captionTargetBox="[318,1264,198,1012]" captionTargetId="figure@8.[310,1276,193,1024]" captionTargetPageId="8" captionText="FIGURE 2. Labrorostratus caribensis n. sp. (A) Parapodium 100. (B) Modified ventral chaetae from medium parapodium. (C) Simple limbate chaetae from medium parapodium. (D) Simple bilimbate chaetae from posterior parapodium. Nereis sp. (E) Notopodial homogomph falciger from posterior parapodium. (F) Posterior parapodium, chaetae removed. Scale bars: A = 150 µm; B = 50 µm; C = 40 µm; D = 70 µm; E = 20 µm; F = 50 µm." httpUri="https://zenodo.org/record/242521/files/figure.png" pageId="6" pageNumber="133">Fig. 2</figureCitation>
D); up to four simple chaetae per parapodium, superior chaetae longer than others. On posterior third of body, the superior simple chaetae are geniculate, with short, smooth and symmetrical wings (
<figureCitation id="131763A0FFC8FFC3FB477E12FF0EFCC3" box="[1269,1343,798,823]" captionStart="FIGURE 2" captionStartId="8.[151,250,1046,1068]" captionTargetBox="[318,1264,198,1012]" captionTargetId="figure@8.[310,1276,193,1024]" captionTargetPageId="8" captionText="FIGURE 2. Labrorostratus caribensis n. sp. (A) Parapodium 100. (B) Modified ventral chaetae from medium parapodium. (C) Simple limbate chaetae from medium parapodium. (D) Simple bilimbate chaetae from posterior parapodium. Nereis sp. (E) Notopodial homogomph falciger from posterior parapodium. (F) Posterior parapodium, chaetae removed. Scale bars: A = 150 µm; B = 50 µm; C = 40 µm; D = 70 µm; E = 20 µm; F = 50 µm." httpUri="https://zenodo.org/record/242521/files/figure.png" pageId="6" pageNumber="133">Fig. 2</figureCitation>
C). One modified ventral chaeta per parapodium from chaetiger 18, thicker than other chaetae, with a flat extension on distal end, and a smooth shaft (
<figureCitation id="131763A0FFC8FFC3FE417E6AF806FC8B" box="[499,567,870,895]" captionStart="FIGURE 2" captionStartId="8.[151,250,1046,1068]" captionTargetBox="[318,1264,198,1012]" captionTargetId="figure@8.[310,1276,193,1024]" captionTargetPageId="8" captionText="FIGURE 2. Labrorostratus caribensis n. sp. (A) Parapodium 100. (B) Modified ventral chaetae from medium parapodium. (C) Simple limbate chaetae from medium parapodium. (D) Simple bilimbate chaetae from posterior parapodium. Nereis sp. (E) Notopodial homogomph falciger from posterior parapodium. (F) Posterior parapodium, chaetae removed. Scale bars: A = 150 µm; B = 50 µm; C = 40 µm; D = 70 µm; E = 20 µm; F = 50 µm." httpUri="https://zenodo.org/record/242521/files/figure.png" pageId="6" pageNumber="133">Fig. 2</figureCitation>
B). Pygidium rounded, anal cirri absent.
</paragraph>
<paragraph id="8B937F25FFC8FFC3FF757E86F901FBA3" blockId="6.[151,1437,258,2011]" pageId="6" pageNumber="133">
<emphasis id="B958A337FFC8FFC3FF757E86FB37FC57" bold="true" box="[199,262,906,931]" pageId="6" pageNumber="133">Host.</emphasis>
The absence of the host anterior region prevented us to identify it to species (
<figureCitation id="131763A0FFC8FFC3FBC87E86FE8EFC57" box="[1146,1215,906,931]" captionStart="FIGURE 2" captionStartId="8.[151,250,1046,1068]" captionTargetBox="[318,1264,198,1012]" captionTargetId="figure@8.[310,1276,193,1024]" captionTargetPageId="8" captionText="FIGURE 2. Labrorostratus caribensis n. sp. (A) Parapodium 100. (B) Modified ventral chaetae from medium parapodium. (C) Simple limbate chaetae from medium parapodium. (D) Simple bilimbate chaetae from posterior parapodium. Nereis sp. (E) Notopodial homogomph falciger from posterior parapodium. (F) Posterior parapodium, chaetae removed. Scale bars: A = 150 µm; B = 50 µm; C = 40 µm; D = 70 µm; E = 20 µm; F = 50 µm." httpUri="https://zenodo.org/record/242521/files/figure.png" pageId="6" pageNumber="133">Fig. 2</figureCitation>
E, F). However, the homo- and heterogomph spinigers, the heterogomph falcigers in the neuropodia, and the characteristic notopodial homogomph falcigers (
<figureCitation id="131763A0FFC8FFC3FE287EDEFBECFC1F" box="[410,477,978,1003]" captionStart="FIGURE 2" captionStartId="8.[151,250,1046,1068]" captionTargetBox="[318,1264,198,1012]" captionTargetId="figure@8.[310,1276,193,1024]" captionTargetPageId="8" captionText="FIGURE 2. Labrorostratus caribensis n. sp. (A) Parapodium 100. (B) Modified ventral chaetae from medium parapodium. (C) Simple limbate chaetae from medium parapodium. (D) Simple bilimbate chaetae from posterior parapodium. Nereis sp. (E) Notopodial homogomph falciger from posterior parapodium. (F) Posterior parapodium, chaetae removed. Scale bars: A = 150 µm; B = 50 µm; C = 40 µm; D = 70 µm; E = 20 µm; F = 50 µm." httpUri="https://zenodo.org/record/242521/files/figure.png" pageId="6" pageNumber="133">Fig. 2</figureCitation>
E), allowed us to recognize it as a member of the genus
<taxonomicName id="4C2C04A6FFC8FFC3FBFE7ED8FEA5FC1F" box="[1100,1172,980,1003]" class="Polychaeta" family="Nereididae" genus="Nereis" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FBFE7ED8FEA5FC1F" box="[1100,1172,980,1003]" italics="true" pageId="6" pageNumber="133">Nereis</emphasis>
</taxonomicName>
. This is the first known relationship between an oenonid and a nereidid from the Grand Caribbean, and the second record worldwide, since only the oenonid
<taxonomicName id="4C2C04A6FFC8FFC3FED07916F84CFBC7" box="[354,637,1050,1075]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="prolificus">
<emphasis id="B958A337FFC8FFC3FED07916F84CFBC7" box="[354,637,1050,1075]" italics="true" pageId="6" pageNumber="133">Labrorostratus prolificus</emphasis>
</taxonomicName>
had been reported from the northern coast of Sao Paulo,
<collectingCountry id="F33B3FB5FFC8FFC3FAA87916FF50FBC7" box="[1306,1377,1050,1075]" name="Brazil" pageId="6" pageNumber="133">Brazil</collectingCountry>
, as a parasite of the nereidid
<taxonomicName id="4C2C04A6FFC8FFC3FE2D7933F91DFBA3" authority="Grube, 1840" authorityName="Grube" authorityYear="1840" box="[415,812,1086,1111]" class="Polychaeta" family="Nereididae" genus="Perinereis" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="cultrifera">
<emphasis id="B958A337FFC8FFC3FE2D7933F8B5FBA3" box="[415,644,1086,1111]" italics="true" pageId="6" pageNumber="133">Perinereis cultrifera</emphasis>
(
<bibRefCitation id="EFBD02D4FFC8FFC3FD207932F915FBA3" author="Grube" box="[658,804,1086,1111]" pageId="6" pageNumber="133" refString="Grube, A. E. (1840) Actinien, Echinodermen und Wurmer des Adriatischen und Mittelmeers. Konigsberg, J. H. Bon, 93 pp." type="book" year="1840">Grube, 1840</bibRefCitation>
)
</taxonomicName>
.
</paragraph>
</subSubSection>
<subSubSection id="C3362CAEFFC8FFCDFF75796EFF6CFA1C" lastPageId="8" lastPageNumber="135" pageId="6" pageNumber="133" type="discussion">
<paragraph id="8B937F25FFC8FFC3FF75796EF939FA83" blockId="6.[151,1437,258,2011]" pageId="6" pageNumber="133">
<emphasis id="B958A337FFC8FFC3FF75796EFB0AFB8F" bold="true" box="[199,315,1122,1147]" pageId="6" pageNumber="133">Remarks.</emphasis>
Up to now, seven species of
<taxonomicName id="4C2C04A6FFC8FFC3FD36796EF91DFB8F" box="[644,812,1122,1147]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FD36796EF91DFB8F" box="[644,812,1122,1147]" italics="true" pageId="6" pageNumber="133">Labrorostratus</emphasis>
</taxonomicName>
have been described, including the new taxon from the Mexican Caribbean. Except
<taxonomicName id="4C2C04A6FFC8FFC3FE43798BF858FB6A" box="[497,617,1159,1182]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="jonicus">
<emphasis id="B958A337FFC8FFC3FE43798BF858FB6A" box="[497,617,1159,1182]" italics="true" pageId="6" pageNumber="133">L. jonicus</emphasis>
</taxonomicName>
from
<collectingCountry id="F33B3FB5FFC8FFC3FD72798AF8C5FB6B" box="[704,756,1158,1183]" name="Italy" pageId="6" pageNumber="133">Italy</collectingCountry>
,
<taxonomicName id="4C2C04A6FFC8FFC3FCBA798BF943FB6B" box="[776,882,1158,1183]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="luteus">
<emphasis id="B958A337FFC8FFC3FCBA798BF943FB6B" box="[776,882,1158,1183]" italics="true" pageId="6" pageNumber="133">L. luteus</emphasis>
</taxonomicName>
from
<collectingCountry id="F33B3FB5FFC8FFC3FC7B798AFE02FB6B" box="[969,1075,1158,1183]" name="Bahamas" pageId="6" pageNumber="133">Bahamas</collectingCountry>
, and
<taxonomicName id="4C2C04A6FFC8FFC3FBCD798BFF13FB6A" box="[1151,1314,1159,1182]" class="Polychaeta" family="Oenonidae" genus="Oligognathus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="parasiticus">
<emphasis id="B958A337FFC8FFC3FBCD798BFF13FB6A" box="[1151,1314,1159,1182]" italics="true" pageId="6" pageNumber="133">L. parasiticus</emphasis>
</taxonomicName>
from the Mediterranean Sea, all other species are exclusive parasites in polychaetes.
<taxonomicName id="4C2C04A6FFC8FFC3FBB579A0FE48FB37" box="[1031,1145,1196,1219]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="jonicus">
<emphasis id="B958A337FFC8FFC3FBB579A0FE48FB37" box="[1031,1145,1196,1219]" italics="true" pageId="6" pageNumber="133">L. jonicus</emphasis>
</taxonomicName>
was originally described from a single anterior fragment collected as free-living among algae and other polychaetes, including syllids, but
<bibRefCitation id="EFBD02D4FFC8FFC3FF2579FEFB7CFAFF" author="Tenerelli" box="[151,333,1266,1291]" pageId="6" pageNumber="133" refString="Tenerelli, V. (1961) Su una nuova specie di Labrorostratus (Annelida Polychaeta). Bollettino delle sedute dell'Accademia Gioenia di Scienze Naturali in Catania, 46 (5), 211 - 220." type="journal article" year="1961">Tenerelli (1961)</bibRefCitation>
emphasized that it may have come out from one of the polychaetes.
<taxonomicName id="4C2C04A6FFC8FFC3FBD679F8FEF6FAFF" box="[1124,1223,1266,1291]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="luteus">
<emphasis id="B958A337FFC8FFC3FBD679F8FEF6FAFF" box="[1124,1223,1266,1291]" italics="true" pageId="6" pageNumber="133">L. luteus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C2C04A6FFC8FFC3FAB279F8FFADFAFF" box="[1280,1436,1268,1291]" class="Polychaeta" family="Oenonidae" genus="Oligognathus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="parasiticus">
<emphasis id="B958A337FFC8FFC3FAB279F8FFADFAFF" box="[1280,1436,1268,1291]" italics="true" pageId="6" pageNumber="133">L. parasiticus</emphasis>
</taxonomicName>
were originally described as parasites in several species of
<taxonomicName id="4C2C04A6FFC8FFC3FCFC781AF99BFADB" box="[846,938,1302,1327]" class="Polychaeta" family="Syllidae" kingdom="Animalia" order="Phyllodocida" pageId="6" pageNumber="133" phylum="Annelida" rank="family">Syllidae</taxonomicName>
(
<tableCitation id="C6AE4A9EFFC8FFC3FC0E781AFE25FADB" box="[956,1044,1302,1327]" captionStart="TABLE 1" captionStartId="2.[119,197,563,583]" captionText="TABLE 1. Morphological characteristics of parasitic species of Oenonidae with reduced maxillary apparatus." pageId="6" pageNumber="133">Table 1</tableCitation>
), but later on,
<taxonomicName id="4C2C04A6FFC8FFC3FB7B781BFF1FFADB" box="[1225,1326,1302,1327]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="luteus">
<emphasis id="B958A337FFC8FFC3FB7B781BFF1FFADB" box="[1225,1326,1302,1327]" italics="true" pageId="6" pageNumber="133">L. luteus</emphasis>
</taxonomicName>
was also collected as free-living in coarse and fine sand sediments (
<bibRefCitation id="EFBD02D4FFC8FFC3FC997836F9C1FAA7" author="Uebelacker" box="[811,1008,1338,1363]" pageId="6" pageNumber="133" refString="Uebelacker, J. M. (1984) Family Arabellidae Hartman, 1944. In: Uebelacker, J. M. &amp; Johnson, P. G. (Eds.), Polychaetes of the Northern Gulf of Mexico, Volume 6. Barry A. Vittor &amp; Associates, Mobile, Alabama, pp. 42.1 - 42.29." type="book chapter" year="1984">Uebelacker 1984</bibRefCitation>
), and
<taxonomicName id="4C2C04A6FFC8FFC3FB867830FEFEFAA7" box="[1076,1231,1340,1363]" class="Polychaeta" family="Oenonidae" genus="Oligognathus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="parasiticus">
<emphasis id="B958A337FFC8FFC3FB867830FEFEFAA7" box="[1076,1231,1340,1363]" italics="true" pageId="6" pageNumber="133">L. parasiticus</emphasis>
</taxonomicName>
was also reported as free-living among calcareous algae (
<bibRefCitation id="EFBD02D4FFC8FFC3FDFE7852F8CAFA83" author="Pettibone" box="[588,763,1374,1399]" pageId="6" pageNumber="133" refString="Pettibone, M. H. (1957) Endoparasitic polychaetous annelids of the family Arabellidae with descriptions of new species. Biological Bulletin of the Marine Biological Laboratory, Woods Hole, 113, 170 - 187. http: // dx. doi. org / 10.2307 / 1538811" type="journal article" year="1957">Pettibone 1957</bibRefCitation>
).
</paragraph>
<paragraph id="8B937F25FFC8FFC3FF75788EF83BF9BB" blockId="6.[151,1437,258,2011]" pageId="6" pageNumber="133">
The jaw apparatus reduced to the maxillary carriers of
<taxonomicName id="4C2C04A6FFC8FFC3FCE27888F9D4FA6F" box="[848,997,1410,1435]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="caribensis" status="sp. nov.">
<emphasis id="B958A337FFC8FFC3FCE27888F9D4FA6F" box="[848,997,1410,1435]" italics="true" pageId="6" pageNumber="133">L. caribensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26B1E4CFFC8FFC3FC42788EFE02FA6F" box="[1008,1075,1410,1435]" pageId="6" pageNumber="133" rank="species">
<emphasis id="B958A337FFC8FFC3FC42788EFE02FA6F" bold="true" box="[1008,1075,1410,1435]" pageId="6" pageNumber="133">n. sp.</emphasis>
</taxonomicNameLabel>
clearly separates it from other members of the genus. It is only close to
<taxonomicName id="4C2C04A6FFC8FFC3FDC578ABF8D9FA4A" box="[631,744,1447,1470]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="jonicus">
<emphasis id="B958A337FFC8FFC3FDC578ABF8D9FA4A" box="[631,744,1447,1470]" italics="true" pageId="6" pageNumber="133">L. jonicus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C2C04A6FFC8FFC3FC9178ABF9B4FA4B" box="[803,901,1446,1471]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="luteus">
<emphasis id="B958A337FFC8FFC3FC9178ABF9B4FA4B" box="[803,901,1446,1471]" italics="true" pageId="6" pageNumber="133">L. luteus</emphasis>
</taxonomicName>
due to the modified ventral chaetae (
<tableCitation id="C6AE4A9EFFC8FFC3FA8778AAFFBAFA4B" box="[1333,1419,1446,1471]" captionStart="TABLE 1" captionStartId="2.[119,197,563,583]" captionText="TABLE 1. Morphological characteristics of parasitic species of Oenonidae with reduced maxillary apparatus." pageId="6" pageNumber="133">Table 1</tableCitation>
), which are exclusively present in these three parasitic oenonids. These chaetae, however, are common in free-living genera such as
<taxonomicName id="4C2C04A6FFC8FFC3FEF778E2FB96F9F3" box="[325,423,1518,1543]" class="Polychaeta" family="Oenonidae" genus="Arabella" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FEF778E2FB96F9F3" box="[325,423,1518,1543]" italics="true" pageId="6" pageNumber="133">Arabella</emphasis>
</taxonomicName>
, but
<bibRefCitation id="EFBD02D4FFC8FFC3FE5178E2F8BEF9F3" author="Colbath" box="[483,655,1518,1543]" pageId="6" pageNumber="133" refString="Colbath, G. K. (1989) A revision of Arabella mutans (Chamberlin, 1919) and related species (Polychaeta: Arabellidae). Proceedings of the Biological Society of Washington, 102 (2), 283 - 299." type="journal article" year="1989">Colbath (1989)</bibRefCitation>
showed that the modified ventral chaetae in
<taxonomicName id="4C2C04A6FFC8FFC3FB2378E2FEC5F9F3" box="[1169,1268,1518,1543]" class="Polychaeta" family="Oenonidae" genus="Arabella" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FB2378E2FEC5F9F3" box="[1169,1268,1518,1543]" italics="true" pageId="6" pageNumber="133">Arabella</emphasis>
</taxonomicName>
have no hood. Instead of this apparent “hooded” condition, the chaetae have a relatively flat extension of the chaetal shaft, as it was observed in the new species.
</paragraph>
<paragraph id="8B937F25FFC8FFC3FF757B56FE82F92B" blockId="6.[151,1437,258,2011]" pageId="6" pageNumber="133">
The degree of asymmetry of the chaetae can vary within an individual, which is why this is not a robust feature to separate species (
<bibRefCitation id="EFBD02D4FFC8FFC3FECE7B72F82DF963" author="Colbath" box="[380,540,1662,1687]" pageId="6" pageNumber="133" refString="Colbath, G. K. (1989) A revision of Arabella mutans (Chamberlin, 1919) and related species (Polychaeta: Arabellidae). Proceedings of the Biological Society of Washington, 102 (2), 283 - 299." type="journal article" year="1989">Colbath 1989</bibRefCitation>
). However, the two shapes of simple chaetae observed in
<taxonomicName id="4C2C04A6FFC8FFC3FB057B73FF7AF963" box="[1207,1355,1662,1687]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="species" species="caribensis" status="sp. nov.">
<emphasis id="B958A337FFC8FFC3FB057B73FF7AF963" box="[1207,1355,1662,1687]" italics="true" pageId="6" pageNumber="133">L. caribensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26B1E4CFFC8FFC3FAE17B72FFA5F963" box="[1363,1428,1662,1687]" pageId="6" pageNumber="133" rank="species">
<emphasis id="B958A337FFC8FFC3FAE17B72FFA5F963" bold="true" box="[1363,1428,1662,1687]" pageId="6" pageNumber="133">n. sp.</emphasis>
</taxonomicNameLabel>
: limbate with asymmetric wings in anterior and medium body, and limbate with short, symmetrical wings in posterior body, helped to distinguish the new species from all other known parasitic oenonids.
</paragraph>
<paragraph id="8B937F25FFC8FFCDFF757BE6FF6CFA1C" blockId="6.[151,1437,258,2011]" lastBlockId="8.[151,1436,1199,1697]" lastPageId="8" lastPageNumber="135" pageId="6" pageNumber="133">
Modifications of the maxillary apparatus of the endoparasitic polychaetes could be associated to a progressive adaptation to this mode of life: the mandibles are well developed in most species, but the jaws tend to be small sized (
<bibRefCitation id="EFBD02D4FFC8FFC3FF527A3EFB54F8BF" author="Clark" box="[224,357,1842,1867]" pageId="6" pageNumber="133" refString="Clark, R. B. (1956) Capitella capitata as a commensal, with a bibliography of parasitism and commensalism in the polychaetes. Annals and Magazine of Natural History, 12, 433 - 448. http: // dx. doi. org / 10.1080 / 00222935608655838" type="journal article" year="1956">Clark 1956</bibRefCitation>
;
<bibRefCitation id="EFBD02D4FFC8FFC3FEC37A3EF8B8F8BF" author="Martin" box="[369,649,1842,1867]" pageId="6" pageNumber="133" refString="Martin, D. &amp; Britayev, T. A. (1998) Symbiotic polychaetes: review of known species. Oceanography and Marine Biology: an Annual Review, 36, 217 - 340." type="journal article" year="1998">Martin &amp; Britayev 1998</bibRefCitation>
). The scarcity of specimens collected worldwide makes it difficult to explore the life history of endoparasites and to know and evaluate their morphological changes through their growth stages and life history. The reduction and specialization of their mouth parts could be the reason why several genera of parasitic oenonids have been erected and comprise only one or two species. This is the case of
<taxonomicName id="4C2C04A6FFC8FFC3FF257ACEFB1DF82F" box="[151,300,1986,2011]" class="Polychaeta" family="Oenonidae" genus="Drilognathus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FF257ACEFB1DF82F" box="[151,300,1986,2011]" italics="true" pageId="6" pageNumber="133">Drilognathus</emphasis>
</taxonomicName>
and
<emphasis id="B958A337FFC8FFC3FED17ACEFBCCF82F" box="[355,509,1986,2011]" italics="true" pageId="6" pageNumber="133">Pholaidiphila</emphasis>
(monospecific), and
<taxonomicName id="4C2C04A6FFC8FFC3FD597ACEF9B2F82F" box="[747,899,1986,2011]" class="Polychaeta" family="Oenonidae" genus="Oligognathus" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FD597ACEF9B2F82F" box="[747,899,1986,2011]" italics="true" pageId="6" pageNumber="133">Oligognathus</emphasis>
</taxonomicName>
and
<taxonomicName id="4C2C04A6FFC8FFC3FC0B7ACEFE5FF82F" box="[953,1134,1986,2011]" class="Polychaeta" family="Oenonidae" genus="Haematocleptes" kingdom="Animalia" order="Eunicida" pageId="6" pageNumber="133" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC8FFC3FC0B7ACEFE5FF82F" box="[953,1134,1986,2011]" italics="true" pageId="6" pageNumber="133">Haematocleptes</emphasis>
</taxonomicName>
(two species) (
<tableCitation id="C6AE4A9EFFC8FFC3FAAA7ACEFF5AF82F" box="[1304,1387,1986,2011]" captionStart="TABLE 1" captionStartId="2.[119,197,563,583]" captionText="TABLE 1. Morphological characteristics of parasitic species of Oenonidae with reduced maxillary apparatus." pageId="6" pageNumber="133">Table 1</tableCitation>
). In
<taxonomicName id="4C2C04A6FFC6FFCDFF2579BCFB16FB3C" box="[151,295,1199,1224]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="species" species="caribensis" status="sp. nov.">
<emphasis id="B958A337FFC6FFCDFF2579BCFB16FB3C" box="[151,295,1199,1224]" italics="true" pageId="8" pageNumber="135">L. caribensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26B1E4CFFC6FFCDFE9D79A3FB5FFB3C" box="[303,366,1199,1224]" pageId="8" pageNumber="135" rank="species">
<emphasis id="B958A337FFC6FFCDFE9D79A3FB5FFB3C" bold="true" box="[303,366,1199,1224]" pageId="8" pageNumber="135">n. sp.</emphasis>
</taxonomicNameLabel>
, the jaw plates are lacking and the shape of their maxillary carriers is similar to those observed in
<taxonomicName id="4C2C04A6FFC6FFCDFF0179DFF81DFB18" authority="Day, 1960" authorityName="Day" authorityYear="1960" box="[179,556,1235,1260]" class="Polychaeta" family="Oenonidae" genus="Drilognathus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="species" species="capensis">
<emphasis id="B958A337FFC6FFCDFF0179DFFB9EFB1F" box="[179,431,1235,1260]" italics="true" pageId="8" pageNumber="135">Drilognathus capensis</emphasis>
<bibRefCitation id="EFBD02D4FFC6FFCDFE0479D8F81DFB18" author="Day" box="[438,556,1235,1260]" pageId="8" pageNumber="135" refString="Day, J. H. (1960) The Polychaete fauna of South Africa. Part 5. Errant species dredged off Cape coasts. Annales of the South African Museum, 45, 261 - 373." type="journal article" year="1960">Day, 1960</bibRefCitation>
</taxonomicName>
, described from a single specimen, possibly not even adult (
<bibRefCitation id="EFBD02D4FFC6FFCDFB7879DFFAE2FAFB" author="Martin" pageId="8" pageNumber="135" refString="Martin, D. &amp; Britayev, T. A. (1998) Symbiotic polychaetes: review of known species. Oceanography and Marine Biology: an Annual Review, 36, 217 - 340." type="journal article" year="1998">Martin &amp; Britayev 1998</bibRefCitation>
). However, the size of the Caribbean specimen (
<quantity id="4CD4D2C0FFC6FFCDFD4F79FBF97EFAFB" box="[765,847,1271,1295]" metricMagnitude="-2" metricUnit="m" metricValue="1.0" pageId="8" pageNumber="135" unit="mm" value="10.0">10 mm</quantity>
for 153 segments) suggests that the absence of jaw plates is not associated with a juvenile stage. Although the phases of maxillary development in endoparasitic polychaetes are poorly known,
<bibRefCitation id="EFBD02D4FFC6FFCDFDBF7833F889FAA3" author="Amaral" box="[525,696,1343,1368]" pageId="8" pageNumber="135" refString="Amaral, A. C. Z. (1977) Um poliqueto endoparasita, Labrorostratus prolificus sp. nov. em nereideo. Bolm Instituto Oceanografico, Sao Paulo, 26, 285 - 292. http: // dx. doi. org / 10.1590 / S 0373 - 55241977000200006" type="journal article" year="1977">Amaral (1977)</bibRefCitation>
and
<bibRefCitation id="EFBD02D4FFC6FFCDFD487833FE12FAA3" author="Steiner" box="[762,1059,1343,1368]" pageId="8" pageNumber="135" refString="Steiner, T. M. &amp; Amaral, A. C. Z. (2009) Arabella aracaensis, a new species with growth rings on its mandibles, and some remarks on the endoparasitic Labrorostratus prolificus (Polychaeta: Oenonidae) from southeast Brazil. Journal of Natural History, 43, 2537 - 2551. http: // dx. doi. org / 10.1080 / 00222930903219988" type="journal article" year="2009">Steiner &amp; Amaral (2009)</bibRefCitation>
observed that individuals of
<taxonomicName id="4C2C04A6FFC6FFCDFA37784CFB30FA88" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="species" species="prolificus">
<emphasis id="B958A337FFC6FFCDFA37784CFB30FA88" italics="true" pageId="8" pageNumber="135">L. prolificus</emphasis>
</taxonomicName>
with 4165 segments and
<quantity id="4CD4D2C0FFC6FFCDFD847868F886FA8F" box="[566,695,1380,1404]" metricMagnitude="-3" metricUnit="m" metricValue="7.05" metricValueMax="11.0" metricValueMin="3.1" pageId="8" pageNumber="135" unit="mm" value="7.05" valueMax="11.0" valueMin="3.1">3.111 mm</quantity>
long had the jaw apparatus fully developed and the two pairs of eyes well formed. Likewise, specimens of
<taxonomicName id="4C2C04A6FFC6FFCDFDC57884F921FA6B" box="[631,784,1416,1439]" class="Polychaeta" family="Oenonidae" genus="Oligognathus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="species" species="parasiticus">
<emphasis id="B958A337FFC6FFCDFDC57884F921FA6B" box="[631,784,1416,1439]" italics="true" pageId="8" pageNumber="135">L. parasiticus</emphasis>
</taxonomicName>
with 57 segments and
<quantity id="4CD4D2C0FFC6FFCDFBA7788BFE66FA6B" box="[1045,1111,1415,1439]" metricMagnitude="-3" metricUnit="m" metricValue="8.0" pageId="8" pageNumber="135" unit="mm" value="8.0">8 mm</quantity>
long (
<bibRefCitation id="EFBD02D4FFC6FFCDFB2D788BFF41FA6B" author="Saint" box="[1183,1392,1415,1440]" pageId="8" pageNumber="135" refString="Saint Joseph, A. A. de (1888) Les Annelides polychetes des cotes de Dinard, pt. 2. Annales des Sciences Naturelles, Paris, 5, 141 - 338." type="journal article" year="1888">Saint Joseph 1888</bibRefCitation>
), of
<taxonomicName id="4C2C04A6FFC6FFCDFF2578A7FB0EFA30" box="[151,319,1451,1476]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC6FFCDFF2578A7FB0EFA30" box="[151,319,1451,1476]" italics="true" pageId="8" pageNumber="135">Labrorostratus</emphasis>
</taxonomicName>
sp. with 39 segments and
<quantity id="4CD4D2C0FFC6FFCDFDD178A7F889FA37" box="[611,696,1451,1476]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" pageId="8" pageNumber="135" unit="mm" value="2.5">2.5 mm</quantity>
long (
<bibRefCitation id="EFBD02D4FFC6FFCDFD4C78A0FE10FA30" author="San" box="[766,1057,1451,1476]" pageId="8" pageNumber="135" refString="San Martin, G. &amp; Sarda, R. (1986) Sobre la presencia de un Arabelido (Polychaeta: Arabellidae) parasito de Silidos (Polychaeta: Syllidae), del genero Labrorostratus en las costas espanolas. Boletin de la Real Sociedad Espanola de Historia Natural (Seccion Biologia), 82, 141 - 146." type="journal article" year="1986">San Martín &amp; Sardá 1986</bibRefCitation>
), and individuals of
<taxonomicName id="4C2C04A6FFC6FFCDFAB678A0FF55FA30" box="[1284,1380,1451,1476]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="species" species="luteus">
<emphasis id="B958A337FFC6FFCDFAB678A0FF55FA30" box="[1284,1380,1451,1476]" italics="true" pageId="8" pageNumber="135">L. luteus</emphasis>
</taxonomicName>
with 80 segments and
<quantity id="4CD4D2C0FFC6FFCDFEEA78C3FB9EFA13" box="[344,431,1487,1512]" metricMagnitude="-3" metricUnit="m" metricValue="7.5" pageId="8" pageNumber="135" unit="mm" value="7.5">7.5 mm</quantity>
long (
<bibRefCitation id="EFBD02D4FFC6FFCDFE4778C3F886FA13" author="Uebelacker" box="[501,695,1487,1512]" pageId="8" pageNumber="135" refString="Uebelacker, J. M. (1978) A new parasitic Polychaetous Annelid (Arabellidae) from the Bahamas. Journal of Parasitology, 64, 151 - 154. http: // dx. doi. org / 10.2307 / 3279630" type="journal article" year="1978">Uebelacker 1978</bibRefCitation>
) also had the maxillae and the four eyes completely formed.
</paragraph>
</subSubSection>
<caption id="DF532FADFFC9FFC2FF257A44F915F868" httpUri="https://zenodo.org/record/242520/files/figure.png" pageId="7" pageNumber="134" targetBox="[182,1407,213,1796]" targetPageId="7">
<paragraph id="8B937F25FFC9FFC2FF257A44F915F868" blockId="7.[151,1436,1864,1948]" pageId="7" pageNumber="134">
<emphasis id="B958A337FFC9FFC2FF257A44FB27F8AA" bold="true" box="[151,278,1864,1886]" pageId="7" pageNumber="134">FIGURE 1.</emphasis>
<taxonomicName id="4C2C04A6FFC9FFC2FEAD7A44F819F8AA" box="[287,552,1864,1886]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="7" pageNumber="134" phylum="Annelida" rank="species" species="caribensis" status="sp. nov.">
<emphasis id="B958A337FFC9FFC2FEAD7A44F819F8AA" box="[287,552,1864,1886]" italics="true" pageId="7" pageNumber="134">Labrorostratus caribensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26B1E4CFFC9FFC2FD837A44F85FF8AA" box="[561,622,1864,1886]" pageId="7" pageNumber="134" rank="species">
<emphasis id="B958A337FFC9FFC2FD837A44F85FF8AA" bold="true" box="[561,622,1864,1886]" pageId="7" pageNumber="134">n. sp.</emphasis>
</taxonomicNameLabel>
(A) Anterior region, lateral view. (B) Mandibles, ventral view. (C) maxillary carriers fused, ventral view. (D) Parapodium 6. (E) Parapodium 15. (F) Parapodium 30. (G) Parapodium 80. Scale bars: A = 250 µm; B = 100 µm; C = 150 µm; D-F = 100 µm; G = 150 µm.
</paragraph>
</caption>
<caption id="DF532FADFFC6FFCDFF25791AF914FB7C" httpUri="https://zenodo.org/record/242521/files/figure.png" pageId="8" pageNumber="135" targetBox="[318,1264,198,1012]" targetPageId="8">
<paragraph id="8B937F25FFC6FFCDFF25791AF914FB7C" blockId="8.[151,1436,1046,1160]" pageId="8" pageNumber="135">
<emphasis id="B958A337FFC6FFCDFF25791AFB23FBD8" bold="true" box="[151,274,1046,1068]" pageId="8" pageNumber="135">FIGURE 2.</emphasis>
<taxonomicName id="4C2C04A6FFC6FFCDFEAA791AF82CFBD8" box="[280,541,1046,1068]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="species" species="caribensis" status="sp. nov.">
<emphasis id="B958A337FFC6FFCDFEAA791AF82CFBD8" box="[280,541,1046,1068]" italics="true" pageId="8" pageNumber="135">Labrorostratus caribensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A26B1E4CFFC6FFCDFD91791AF86AFBD8" box="[547,603,1046,1068]" pageId="8" pageNumber="135" rank="species">
<emphasis id="B958A337FFC6FFCDFD91791AF86AFBD8" bold="true" box="[547,603,1046,1068]" pageId="8" pageNumber="135">n. sp.</emphasis>
</taxonomicNameLabel>
(A) Parapodium 100. (B) Modified ventral chaetae from medium parapodium. (C) Simple limbate chaetae from medium parapodium. (D) Simple bilimbate chaetae from posterior parapodium.
<taxonomicName id="4C2C04A6FFC6FFCDFABE7939FF7CFBBE" box="[1292,1357,1077,1098]" class="Polychaeta" family="Nereididae" genus="Nereis" kingdom="Animalia" order="Phyllodocida" pageId="8" pageNumber="135" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC6FFCDFABE7939FF7CFBBE" box="[1292,1357,1077,1098]" italics="true" pageId="8" pageNumber="135">Nereis</emphasis>
</taxonomicName>
sp. (E) Notopodial homogomph falciger from posterior parapodium. (F) Posterior parapodium, chaetae removed. Scale bars: A = 150 µm; B = 50 µm; C = 40 µm; D = 70 µm; E = 20 µm; F = 50 µm.
</paragraph>
</caption>
<subSubSection id="C3362CAEFFC6FFCDFF7578FFFB48F98F" pageId="8" pageNumber="135" type="etymology">
<paragraph id="8B937F25FFC6FFCDFF7578FFF883F9C4" blockId="8.[151,1436,1199,1697]" pageId="8" pageNumber="135">
<emphasis id="B958A337FFC6FFCDFF7578FFFB7FF9F8" bold="true" box="[199,334,1523,1548]" pageId="8" pageNumber="135">Etymology.</emphasis>
The specific epithet,
<taxonomicName id="4C2C04A6FFC6FFCDFDFD78FFF8F3F9F8" box="[591,706,1523,1548]" class="Polychaeta" family="Oenonidae" genus="Labrorostratus" kingdom="Animalia" order="Eunicida" pageId="8" pageNumber="135" phylum="Annelida" rank="species" species="caribensis">
<emphasis id="B958A337FFC6FFCDFDFD78FFF8F3F9F8" box="[591,706,1523,1548]" italics="true" pageId="8" pageNumber="135">caribensis</emphasis>
</taxonomicName>
, refers to the marine region where the species was found, the Mexican Caribbean, called “Caribe” in Spanish.
</paragraph>
<paragraph id="8B937F25FFC6FFCDFF757B37FB48F98F" blockId="8.[151,1436,1199,1697]" pageId="8" pageNumber="135">
<emphasis id="B958A337FFC6FFCDFF757B37FB1BF9A0" bold="true" box="[199,298,1595,1620]" pageId="8" pageNumber="135">Habitat.</emphasis>
Inside the body cavity of
<taxonomicName id="4C2C04A6FFC6FFCDFDFD7B30F8A9F9A7" box="[591,664,1596,1619]" class="Polychaeta" family="Nereididae" genus="Nereis" kingdom="Animalia" order="Phyllodocida" pageId="8" pageNumber="135" phylum="Annelida" rank="genus">
<emphasis id="B958A337FFC6FFCDFDFD7B30F8A9F9A7" box="[591,664,1596,1619]" italics="true" pageId="8" pageNumber="135">Nereis</emphasis>
</taxonomicName>
sp., from dead coral rocks,
<quantity id="4CD4D2C0FFC6FFCDFC627B37FE20F9A7" box="[976,1041,1595,1620]" metricMagnitude="0" metricUnit="m" metricValue="4.5" pageId="8" pageNumber="135" unit="m" value="4.5">4.5 m</quantity>
depth, temperature of 26.41°C and 35.76 0/0 0 of salinity.
</paragraph>
</subSubSection>
<subSubSection id="C3362CAEFFC6FFCDFF757B84FEA8F955" box="[199,1177,1672,1697]" pageId="8" pageNumber="135" type="materials_examined">
<paragraph id="8B937F25FFC6FFCDFF757B84FEA8F955" blockId="8.[151,1436,1199,1697]" box="[199,1177,1672,1697]" pageId="8" pageNumber="135">
<emphasis id="B958A337FFC6FFCDFF757B84FB54F955" bold="true" box="[199,357,1672,1697]" pageId="8" pageNumber="135">
<typeStatus id="5497C187FFC6FFCDFF757B84FB33F955" box="[199,258,1672,1697]" pageId="8" pageNumber="135">Type</typeStatus>
locality.
</emphasis>
Chinchorro Bank, Mexican Caribbean (
<geoCoordinate id="EE1819E2FFC6FFCDFC9A7B85F9E0F955" box="[808,977,1672,1697]" direction="north" orientation="latitude" pageId="8" pageNumber="135" precision="1" value="18.58364">18° 35' 01.1''N</geoCoordinate>
;
<geoCoordinate id="EE1819E2FFC6FFCDFC6E7B85FEBCF955" box="[988,1165,1673,1697]" direction="west" orientation="longitude" pageId="8" pageNumber="135" precision="1" value="-87.37453">87° 22' 28.3''W</geoCoordinate>
).
</paragraph>
</subSubSection>
</treatment>
</document>