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<document id="B1F8E96414F4499D1E12042E08A225B8" ID-CLB-Dataset="26539" ID-DOI="10.11646/zootaxa.4614.2.3" ID-GBIF-Dataset="d329726e-6a89-41a8-baba-b26dccac1751" ID-ISSN="1175-5326" ID-Zenodo-Dep="3242403" ID-ZooBank="3053533C-BDDE-4321-95B2-D557F3CF048D" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" IM.treatments_approvedBy="felipe" checkinTime="1560166566376" checkinUser="plazi" docAuthor="Zhang, Jinghuai, Hutchings, Pat &amp; Kupriyanova, Elena" docDate="2019" docId="03A887E7D427A03960CEDAE7373EFE6F" docLanguage="en" docName="zootaxa.4614.2.3.pdf" docOrigin="Zootaxa 4614 (2)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Petta pellucida" docType="treatment" docVersion="11" lastPageNumber="315" masterDocId="FF91FF9FD42EA0356059D908330BFFC0" masterDocTitle="A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family" masterLastPageNumber="330" masterPageNumber="303" pageNumber="312" updateTime="1698733849990" updateUser="ExternalLinkService">
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<mods:title id="E0AB72618C5B0C14CAB3047586534C28">A revision of the genus Petta Malmgren, 1866 (Annelida: Pectinariidae), with two new species from deep waters of southeastern Australia, and comments on phylogeny of the family</mods:title>
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<mods:namePart id="D779A7AB3FDDDBABD7FC6306A4E61038">Zhang, Jinghuai</mods:namePart>
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<mods:namePart id="26777CAE7047D3D2656694EAA5A85BCB">Hutchings, Pat</mods:namePart>
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<mods:namePart id="A577371E1B74394A7ADC3B364A5BD881">Kupriyanova, Elena</mods:namePart>
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<treatment id="03A887E7D427A03960CEDAE7373EFE6F" ID-DOI="http://doi.org/10.5281/zenodo.5625083" ID-GBIF-Taxon="157500931" ID-Zenodo-Dep="5625083" LSID="urn:lsid:plazi:treatment:03A887E7D427A03960CEDAE7373EFE6F" httpUri="http://treatment.plazi.org/id/03A887E7D427A03960CEDAE7373EFE6F" lastPageId="12" lastPageNumber="315" pageId="9" pageNumber="312">
<subSubSection id="C31B657AD427A03C60CEDAE7310AFBC8" box="[151,513,1006,1033]" pageId="9" pageNumber="312" type="nomenclature">
<paragraph id="8BBE36F1D427A03C60CEDAE7310AFBC8" blockId="9.[151,513,1006,1068]" box="[151,513,1006,1033]" pageId="9" pageNumber="312">
<heading id="D0F6819DD427A03C60CEDAE7310AFBC8" bold="true" box="[151,513,1006,1033]" fontSize="11" level="1" pageId="9" pageNumber="312" reason="1">
<taxonomicName id="4C014D72D427A03C60CEDAE7310AFBC8" ID-CoL="6V7TK" authority="(Ehlers, 1887)" baseAuthorityName="Ehlers" baseAuthorityYear="1887" box="[151,513,1006,1033]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="312" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D427A03C60CEDAE7310AFBC8" bold="true" box="[151,513,1006,1033]" pageId="9" pageNumber="312">
<emphasis id="B975EAE3D427A03C60CEDAE73240FBC9" bold="true" box="[151,331,1006,1033]" italics="true" pageId="9" pageNumber="312">Petta pellucida</emphasis>
(
<bibRefCitation id="EF904B00D427A03C6102DAE632F3FBC8" author="Ehlers, E." box="[347,504,1006,1032]" pageId="9" pageNumber="312" pagination="1 - 335" refId="ref15498" refString="Ehlers, E. (1887) Reports on the results of dredging, under the direction of L. F. Pourtales, during the years 1868 - 1870, and of Alexander Agassiz, in the Gulf of Mexico (1877 - 78), and in the Caribbean Sea (1878 - 79), in the U. S. Coast Survey steamer &quot; Blake &quot;, Lieut-Com. C. D. Sigsbee, U. S. N. and Commander J. R. Bartlett, U. S. N., commanding. XXXI. Report on the Annelids. Memoirs of the Museum of Comparative Zoology at Harvard College, 15, 1 - 335. https: // doi. org / 10.5962 / bhl. title. 65639" type="journal article" year="1887">Ehlers, 1887</bibRefCitation>
)
</emphasis>
</taxonomicName>
</heading>
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD427A03C60CEDD1A3232FBEC" box="[151,313,1042,1068]" pageId="9" pageNumber="312" type="description">
<paragraph id="8BBE36F1D427A03C60CEDD1A3232FBEC" blockId="9.[151,513,1006,1068]" box="[151,313,1042,1068]" pageId="9" pageNumber="312">
<figureCitation id="133A2A74D427A03C60CEDD1A33D0FBEC" box="[151,219,1042,1068]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6</figureCitation>
,
<tableCitation id="C683034AD427A03C60BFDD1A3232FBEC" box="[230,313,1042,1068]" captionStart="TABLE 2" captionStartId="22.[151,239,654,680]" captionTargetBox="[165,1992,707,1580]" captionText="TABLE 2. A summary of comparative diagnostic characters for the species of the genus Petta species as used in this study." httpUri="http://table.plazi.org/id/DF7E6679D438A02360CEDB8636B2FD68" pageId="9" pageNumber="312" tableUuid="DF7E6679D438A02360CEDB8636B2FD68">Table 2</tableCitation>
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD427A03C60CEDD5F3050FBAF" box="[151,859,1110,1135]" pageId="9" pageNumber="312" type="reference_group">
<paragraph id="8BBE36F1D427A03C60CEDD5F3050FBAF" blockId="9.[151,859,1110,1135]" box="[151,859,1110,1135]" pageId="9" pageNumber="312">
<taxonomicName id="4C014D72D427A03C60CEDD5F31A9FBAF" ID-CoL="6TVKF" authority="Ehlers, 1887: 194 - 199" authorityName="Ehlers" authorityPageNumber="194" authorityYear="1887" box="[151,674,1110,1135]" class="Polychaeta" family="Pectinariidae" genus="Pectinaria" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="312" phylum="Annelida" rank="species" species="pellucida" subGenus="Petta">
<emphasis id="B975EAE3D427A03C60CEDD5F3209FBAE" box="[151,258,1111,1134]" italics="true" pageId="9" pageNumber="312">Pectinaria</emphasis>
(
<emphasis id="B975EAE3D427A03C6148DD5F324DFBAE" box="[273,326,1111,1134]" italics="true" pageId="9" pageNumber="312">Petta</emphasis>
)
<emphasis id="B975EAE3D427A03C610CDD5E32B8FBAE" box="[341,435,1110,1134]" italics="true" pageId="9" pageNumber="312">pellucida</emphasis>
<bibRefCitation id="EF904B00D427A03C61E3DD5E31A9FBAF" author="Ehlers, E." box="[442,674,1110,1135]" pageId="9" pageNumber="312" pagination="1 - 335" refId="ref15498" refString="Ehlers, E. (1887) Reports on the results of dredging, under the direction of L. F. Pourtales, during the years 1868 - 1870, and of Alexander Agassiz, in the Gulf of Mexico (1877 - 78), and in the Caribbean Sea (1878 - 79), in the U. S. Coast Survey steamer &quot; Blake &quot;, Lieut-Com. C. D. Sigsbee, U. S. N. and Commander J. R. Bartlett, U. S. N., commanding. XXXI. Report on the Annelids. Memoirs of the Museum of Comparative Zoology at Harvard College, 15, 1 - 335. https: // doi. org / 10.5962 / bhl. title. 65639" type="journal article" year="1887">Ehlers, 1887: 194–199</bibRefCitation>
</taxonomicName>
, Taf. 44,
<figureCitation id="133A2A74D427A03C6359DD5E305CFBAF" box="[768,855,1110,1135]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStart-4="FIGURE 5" captionStart-5="FIGURE 6" captionStart-6="FIGURE 7" captionStart-7="FIGURE 8" captionStart-8="FIGURE 9" captionStartId-0="3.[151,250,1819,1844]" captionStartId-1="5.[151,250,1466,1491]" captionStartId-2="6.[151,250,838,863]" captionStartId-3="7.[151,250,1626,1651]" captionStartId-4="8.[151,250,1354,1379]" captionStartId-5="10.[151,250,1895,1920]" captionStartId-6="12.[151,250,1788,1813]" captionStartId-7="13.[151,250,1566,1591]" captionStartId-8="15.[151,250,1690,1715]" captionTargetBox-0="[151,1436,1180,1799]" captionTargetBox-1="[209,1385,280,1431]" captionTargetBox-2="[171,1417,166,798]" captionTargetBox-3="[173,1415,181,1601]" captionTargetBox-4="[174,1414,166,1314]" captionTargetBox-5="[173,1415,395,1854]" captionTargetBox-6="[173,1415,460,1748]" captionTargetBox-7="[173,1415,166,1526]" captionTargetBox-8="[188,1391,166,1651]" captionTargetId-0="figure@3.[151,1436,1157,1799]" captionTargetId-1="figure@5.[195,1393,273,1441]" captionTargetId-2="figure@6.[171,1417,166,798]" captionTargetId-3="figure@7.[172,1415,181,1601]" captionTargetId-4="figure@8.[174,1414,166,1314]" captionTargetId-5="figure@10.[173,1415,402,1855]" captionTargetId-6="figure@12.[173,1415,460,1748]" captionTargetId-7="figure@13.[173,1415,166,1526]" captionTargetId-8="figure@15.[187,1399,166,1655]" captionTargetPageId-0="3" captionTargetPageId-1="5" captionTargetPageId-2="6" captionTargetPageId-3="7" captionTargetPageId-4="8" captionTargetPageId-5="10" captionTargetPageId-6="12" captionTargetPageId-7="13" captionTargetPageId-8="15" captionText-0="FIGURE 1. Type localities of all Petta species." captionText-1="FIGURE 2. Line drawings of Petta pusilla Malmgren, 1866. Holotype (SMNH T361): A. Ventral view of anterior end; B. Lateral view of anterior end; C. Dorsal view of posterior end, showing lobes on lateral margin of scaphe; D. Anterior view of notochaetae from posterior row; E. Latero-anterior view of notochaetae from anterior row; F. Uncinus; G. Distal parts of scaphal hooks. Abbreviations: ac, anal cirrus; ap, anterior peg; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; lel, lateral ear-shaped lobe; ll, lower lip; mat, major teeth; mit, minor teeth; nec, neurochaetae; noc, notochaetae; nop, notopodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." captionText-2="FIGURE 3. Petta pusilla Malmgren, 1866. Tube and methyl green stained body of the holotype (SMNH T361): A. Tube; B. Lateral view of entire body; C. Ventral view of entire body; D. Dorsal view of anterior end. Abbreviations: br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri." captionText-3="FIGURE 4. Petta pusilla Malmgren, 1866. Methyl green stained body of the holotype (SMNH T361): A. Ventral view of anterior end; B. Close-up view of right branchia, dorsal view; C. Dorso-lateral view of anterior end; D. Close-up view of cephalic veil, ventral view; E. Lateral ear-shaped lobe; F. Scaphal hooks; G. Dorsal view of posterior end; H. Ventro-lateral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe.Abbreviations: ac, anal cirrus; an, anus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; lcv, lappets of cephalic veil; lel, lateral ear-shaped lobe; ll, lower lip; nec, neurochaetae; nep, neuropodium; noc, notochaetae; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." captionText-4="FIGURE 5. Petta pusilla Malmgren, 1866. Methyl green stained body and chaetae (AM W.50333): A. Ventral view of anterior end; B. Lateral view of anterior end; C. Close-up view of anterior margin on cephalic veil, in dorsal view; D–G. Close-up view of notochaetae from segment 14; E. Notochaetae from posterior row; F–G. Notochaetae from anterior row; H–I. Uncini from segment 14. Abbreviations: br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; lcv, lappets of cephalic veil; lel, lateral ear-shaped lobe; ll, lower lip; op, operculum; or, opercular rim; p, paleae; s, segment; tc, tentacular cirri; vl, ventral lappet." captionText-5="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." captionText-6="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." captionText-7="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." captionText-8="FIGURE 9. Line drawings of Petta investigatoris n. sp. Holotype (AM W.50672): A. Lateral view of entire body; B. Dorsolateral view of anterior end; C. Ventral view of anterior end; D. Ventral view of posterior end; E. Dorso-lateral view of posterior end, showing lobes on lateral margin of scaphe; F. Lateral ear-shaped lobe adjacent to the dorsal base of cephalic veil, ventral view; G. Close-up view of branchia; H. Uncinus; I. Notochaeta from anterior row; J. Notochaeta from posterior row. Abbreviations: ac, anal cirrus; an, anus; ap, anterior peg; br, branchiae; bt, buccal tentacles; cv, cephalic veil; dlp, dorso-lateral pad; dms, dorsal margin of scaphe; hb, hump of branchia; lb, lamellae of branchia; lel, lateral ear-shaped lobe; mat, major teeth; mit, minor teeth; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri-0="https://zenodo.org/record/3242405/files/figure.png" httpUri-1="https://zenodo.org/record/3242407/files/figure.png" httpUri-2="https://zenodo.org/record/3242409/files/figure.png" httpUri-3="https://zenodo.org/record/3242411/files/figure.png" httpUri-4="https://zenodo.org/record/3242413/files/figure.png" httpUri-5="https://zenodo.org/record/3242415/files/figure.png" httpUri-6="https://zenodo.org/record/3242417/files/figure.png" httpUri-7="https://zenodo.org/record/3242419/files/figure.png" httpUri-8="https://zenodo.org/record/3242421/files/figure.png" pageId="9" pageNumber="312">Fig. 1–9</figureCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD427A03C60CEDD94362CFB1B" pageId="9" pageNumber="312" type="materials_examined">
<paragraph id="8BBE36F1D427A03C60CEDD94362CFB1B" blockId="9.[151,1437,1180,2035]" pageId="9" pageNumber="312">
<emphasis id="B975EAE3D427A03C60CEDD943288FB77" bold="true" box="[151,387,1180,1207]" pageId="9" pageNumber="312">Material examined.</emphasis>
<materialsCitation id="3B693CACD427A03C61D5DD953628FB1B" ID-GBIF-Occurrence="2251813248" collectingDate="1868" collectingDateMax="1869" collectingDateMin="1868" collectionCode="MCZ" collectorName="S. Bibb &amp; L. F. Pourtales" country="Bahamas" county="Caribbean Sea" elevation="270" location="Santarem Channel" municipality="Cay Sal Bank" pageId="9" pageNumber="312" specimenCount="1" typeStatus="syntype">
<typeStatus id="54BA8853D427A03C61D5DD9532FEFB77" box="[396,501,1181,1207]" pageId="9" pageNumber="312" type="syntype">Syntypes</typeStatus>
,
<collectionCode id="ED10AE34D427A03C625ADD95314BFB77" box="[515,576,1181,1207]" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:33791" lsid="urn:lsid:biocol.org:col:33791" name="Museum of Comparative Zoology" pageId="9" pageNumber="312" type="Museum">MCZ</collectionCode>
ANNc-2559,
<specimenCount id="9D07FD78D427A03C62BBDD95306FFB77" box="[738,868,1181,1207]" pageId="9" pageNumber="312" type="generic">1 specimen</specimenCount>
in tube and 1 empty tube,
<location id="8EDE602AD427A03C64C6DD953664FB77" LSID="urn:lsid:plazi:treatment:03A887E7D427A03960CEDAE7373EFE6F:8EDE602AD427A03C64C6DD953664FB77" box="[1183,1391,1181,1207]" country="Bahamas" county="Caribbean Sea" municipality="Cay Sal Bank" name="Santarem Channel" pageId="9" pageNumber="312">Santarem Channel</location>
between
<collectingMunicipality id="6BDAAC8BD427A03C60B8DDC93270FB1B" box="[225,379,1217,1243]" pageId="9" pageNumber="312">Cay Sal Bank</collectingMunicipality>
and
<collectingCountry id="F3167661D427A03C61E8DDC93111FB1B" box="[433,538,1217,1243]" name="Bahamas" pageId="9" pageNumber="312">Bahamas</collectingCountry>
,
<collectingCounty id="62DF4E7DD427A03C627FDDC931C0FB1B" box="[550,715,1217,1243]" pageId="9" pageNumber="312">Caribbean Sea</collectingCounty>
,
<elevation id="002CD1C2D427A03C628EDDC9302BFB1B" box="[727,800,1217,1243]" metricMagnitude="2" metricUnit="m" metricValue="2.7" pageId="9" pageNumber="312" unit="m" value="270.0">
<quantity id="4CF99B14D427A03C628EDDC9302BFB1B" box="[727,800,1217,1243]" metricMagnitude="2" metricUnit="m" metricValue="2.7" pageId="9" pageNumber="312" unit="m" value="270.0">270 m</quantity>
</elevation>
, coll.
<collectorName id="26F45327D427A03C633ADDC930BCFB1B" box="[867,951,1217,1243]" pageId="9" pageNumber="312">S. Bibb</collectorName>
&amp;
<collectorName id="26F45327D427A03C6382DDC93775FB1B" box="[987,1150,1217,1243]" pageId="9" pageNumber="312">L. F. Pourtales</collectorName>
in
<collectingDate id="EFFBE9D9D427A03C64FBDDC93628FB1B" box="[1186,1315,1217,1243]" pageId="9" pageNumber="312" value="1868" valueMax="1869">
<date id="FFBF1031D427A03C64FBDDC93628FB1B" box="[1186,1315,1217,1243]" pageId="9" pageNumber="312" value="1868" valueMax="1869">1868–1869</date>
</collectingDate>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD427A03C609EDDEC3769F970" pageId="9" pageNumber="312" type="description">
<paragraph id="8BBE36F1D427A03C609EDDEC3637FAC0" blockId="9.[151,1437,1180,2035]" box="[199,1340,1252,1280]" pageId="9" pageNumber="312">
<emphasis id="B975EAE3D427A03C609EDDEC325AFB3F" bold="true" box="[199,337,1252,1279]" pageId="9" pageNumber="312">Description</emphasis>
. Two complete tubes, one with specimen, broken, dried and twisted, yellow (
<figureCitation id="133A2A74D427A03C64EDDDED37FCFAC0" box="[1204,1271,1253,1280]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6</figureCitation>
A–C).
</paragraph>
<paragraph id="8BBE36F1D427A03C609EDC013298FA88" blockId="9.[151,1437,1180,2035]" pageId="9" pageNumber="312">
Based on damaged
<typeStatus id="54BA8853D427A03C61F9DC0132DFFAE3" box="[416,468,1289,1315]" pageId="9" pageNumber="312">type</typeStatus>
. Operculum with 11 pairs of amber-coloured, long stout paleae curved dorsally, ending in blunt tips (
<figureCitation id="133A2A74D427A03C6175DC25328DFA88" box="[300,390,1325,1352]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6A</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D427A03C609EDC5937D7F984" blockId="9.[151,1437,1180,2035]" pageId="9" pageNumber="312">
Notopodia of segment 1 with paleae, other notopodia with two rows of different chaetae; anterior row with shorter chaetae with distal serrated wings, anterior surface below wing to about mid-basal portion of chaeta covered with numerous minute spines; posterior row with longer capillary chaetae, straight and stout, tapering to acute tips, anterior surface covered with numerous spines from mid-length to tip (
<figureCitation id="133A2A74D427A03C63A5DCB5374AFA18" box="[1020,1089,1469,1496]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6</figureCitation>
F–H). Neuropodia each with a transverse row of uncini on torus; each uncinus with one rounded anterior peg with blunt tip embedded into torus, followed by several rows of minor teeth on a swelling, one longitudinal row of two major teeth, both covered by many small teeth basally (
<figureCitation id="133A2A74D427A03C61E5DF2132F4F984" box="[444,511,1577,1604]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6</figureCitation>
I–G). Last segment with notochaetae and neurochaetae (
<figureCitation id="133A2A74D427A03C642CDF2137C4F984" box="[1141,1231,1577,1604]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6D</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D427A03C609EDF4531D0F94C" blockId="9.[151,1437,1180,2035]" pageId="9" pageNumber="312">
Scaphe contorted, 7 pairs of amber-coloured scaphal hooks arising from both sides of dorsal margin of scaphe, with blunt tips weakly curved dorsally (
<figureCitation id="133A2A74D427A03C620CDF79319CF94C" box="[597,663,1649,1676]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6</figureCitation>
D–E).
</paragraph>
<paragraph id="8BBE36F1D427A03C609EDF9D3769F970" blockId="9.[151,1437,1180,2035]" box="[199,1122,1685,1712]" pageId="9" pageNumber="312">
Tubes slightly curved, almost straight, robust, made of large sand grains (
<figureCitation id="133A2A74D427A03C63A4DF9D375DF970" box="[1021,1110,1685,1712]" captionStart="FIGURE 6" captionStartId="10.[151,250,1895,1920]" captionTargetBox="[173,1415,395,1854]" captionTargetId="figure@10.[173,1415,402,1855]" captionTargetPageId="10" captionText="FIGURE 6. Petta pellucida (Ehlers, 1887). Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="9" pageNumber="312">Fig. 6B</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD427A03C609EDFB03030F8DB" pageId="9" pageNumber="312" type="distribution">
<paragraph id="8BBE36F1D427A03C609EDFB0325AF937" blockId="9.[151,1437,1180,2035]" pageId="9" pageNumber="312">
<emphasis id="B975EAE3D427A03C609EDFB0326AF913" bold="true" box="[199,353,1720,1747]" pageId="9" pageNumber="312">Distribution.</emphasis>
Santarem Channel between Cay Sal Bank and
<collectingCountry id="F3167661D427A03C6322DFB130EFF913" box="[891,996,1721,1747]" name="Bahamas" pageId="9" pageNumber="312">Bahamas</collectingCountry>
, Caribbean (
<figureCitation id="133A2A74D427A03C642CDFB137BCF913" box="[1141,1207,1721,1747]" captionStart="FIGURE 1" captionStartId="3.[151,250,1819,1844]" captionTargetBox="[151,1436,1180,1799]" captionTargetId="figure@3.[151,1436,1157,1799]" captionTargetPageId="3" captionText="FIGURE 1. Type localities of all Petta species." httpUri="https://zenodo.org/record/3242405/files/figure.png" pageId="9" pageNumber="312">Fig. 1</figureCitation>
). Known only from the
<typeStatus id="54BA8853D427A03C6099DFD533FBF937" box="[192,240,1757,1783]" pageId="9" pageNumber="312">type</typeStatus>
locality.
</paragraph>
<paragraph id="8BBE36F1D427A03C609EDE083030F8DB" blockId="9.[151,1437,1180,2035]" box="[199,827,1792,1819]" pageId="9" pageNumber="312">
<emphasis id="B975EAE3D427A03C609EDE083221F8DB" bold="true" box="[199,298,1792,1819]" pageId="9" pageNumber="312">Habitat.</emphasis>
<quantity id="4CF99B14D427A03C6168DE093271F8DB" box="[305,378,1793,1819]" metricMagnitude="2" metricUnit="m" metricValue="2.7" pageId="9" pageNumber="312" unit="m" value="270.0">270 m</quantity>
, no information on sediments available.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD427A03F609EDE2D3213FE4B" lastPageId="10" lastPageNumber="313" pageId="9" pageNumber="312" type="discussion">
<paragraph id="8BBE36F1D427A03C609EDE2D33A7F833" blockId="9.[151,1437,1180,2035]" pageId="9" pageNumber="312">
<emphasis id="B975EAE3D427A03C609EDE2D3230F8FF" bold="true" box="[199,315,1829,1855]" pageId="9" pageNumber="312">Remarks.</emphasis>
The
<typeStatus id="54BA8853D427A03C612CDE2D32DCF8FF" box="[373,471,1829,1855]" pageId="9" pageNumber="312" type="syntype">syntypes</typeStatus>
of
<taxonomicName id="4C014D72D427A03C61A5DE2E318BF8FF" authorityName="Ehlers" authorityYear="1887" box="[508,640,1829,1855]" class="Polychaeta" family="Pectinariidae" genus="Pectinaria" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="312" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D427A03C61A5DE2E318BF8FF" box="[508,640,1829,1855]" italics="true" pageId="9" pageNumber="312">P. pellucida</emphasis>
</taxonomicName>
are in poor condition and the label indicates that the material has dried out at some stage. This means that characters such as shape of cephalic veil and scaphe, number of segments with neurochaetae, presence of dorso-lateral pads in segment 5, and the shape of anal flap could not be examined. According to the description of
<bibRefCitation id="EF904B00D427A03C6180DE99317FF86B" author="Ehlers, E." box="[473,628,1937,1963]" pageId="9" pageNumber="312" pagination="1 - 335" refId="ref15498" refString="Ehlers, E. (1887) Reports on the results of dredging, under the direction of L. F. Pourtales, during the years 1868 - 1870, and of Alexander Agassiz, in the Gulf of Mexico (1877 - 78), and in the Caribbean Sea (1878 - 79), in the U. S. Coast Survey steamer &quot; Blake &quot;, Lieut-Com. C. D. Sigsbee, U. S. N. and Commander J. R. Bartlett, U. S. N., commanding. XXXI. Report on the Annelids. Memoirs of the Museum of Comparative Zoology at Harvard College, 15, 1 - 335. https: // doi. org / 10.5962 / bhl. title. 65639" type="journal article" year="1887">Ehlers (1887)</bibRefCitation>
,
<taxonomicName id="4C014D72D427A03C62D9DE9A3008F86B" authorityName="Ehlers" authorityYear="1887" box="[640,771,1937,1963]" class="Polychaeta" family="Pectinariidae" genus="Pectinaria" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="312" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D427A03C62D9DE9A3008F86B" box="[640,771,1937,1963]" italics="true" pageId="9" pageNumber="312">P. pellucida</emphasis>
</taxonomicName>
differs from
<taxonomicName id="4C014D72D427A03C63CFDE9A30F6F86B" authorityName="Malmgren" authorityYear="1866" box="[918,1021,1937,1963]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="9" pageNumber="312" phylum="Annelida" rank="species" species="pusilla">
<emphasis id="B975EAE3D427A03C63CFDE9A30F6F86B" box="[918,1021,1937,1963]" italics="true" pageId="9" pageNumber="312">P. pusilla</emphasis>
</taxonomicName>
in having a smooth anterior acute tip of the cephalic veil, a pair of ventral lobes on segment 1, and a narrow deep notch between ventral lobes of segment 2.
</paragraph>
<paragraph id="8BBE36F1D424A03F609ED9913213FE4B" blockId="10.[151,1437,153,395]" pageId="10" pageNumber="313">
We disagree with
<bibRefCitation id="EF904B00D424A03F61D7D9913132FF73" author="Nilsson, D." box="[398,569,153,179]" pageId="10" pageNumber="313" pagination="1 - 96" refId="ref16880" refString="Nilsson, D. (1928) Neue und alte Amphicteniden. Goteborgs Kunge. Vetenskaps-och Vitterhets Samhalles Handlingar, Series 4, 33, 1 - 96." type="journal article" year="1928">Nilsson (1928)</bibRefCitation>
’s suggestion that
<taxonomicName id="4C014D72D424A03F62A4D992306FFF73" authorityName="Malmgren" authorityYear="1866" box="[765,868,153,179]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="10" pageNumber="313" phylum="Annelida" rank="species" species="pusilla">
<emphasis id="B975EAE3D424A03F62A4D992306FFF73" box="[765,868,153,179]" italics="true" pageId="10" pageNumber="313">P. pusilla</emphasis>
</taxonomicName>
and
<taxonomicName id="4C014D72D424A03F63C0D9923717FF73" authorityName="Ehlers" authorityYear="1887" box="[921,1052,153,179]" class="Polychaeta" family="Pectinariidae" genus="Pectinaria" kingdom="Animalia" order="Terebellida" pageId="10" pageNumber="313" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D424A03F63C0D9923717FF73" box="[921,1052,153,179]" italics="true" pageId="10" pageNumber="313">P. pellucida</emphasis>
</taxonomicName>
are synonymous as they were collected from very different biogeographical areas and we list characters distinguishing these species in
<tableCitation id="C683034AD424A03F655BD9B5365CFF17" box="[1282,1367,189,215]" captionStart="TABLE 2" captionStartId="22.[151,239,654,680]" captionTargetBox="[165,1992,707,1580]" captionText="TABLE 2. A summary of comparative diagnostic characters for the species of the genus Petta species as used in this study." httpUri="http://table.plazi.org/id/DF7E6679D438A02360CEDB8636B2FD68" pageId="10" pageNumber="313" tableUuid="DF7E6679D438A02360CEDB8636B2FD68">Table 2</tableCitation>
.
<taxonomicName id="4C014D72D424A03F6538D9B633F4FF3B" baseAuthorityName="Ehlers" baseAuthorityYear="1887" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="10" pageNumber="313" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D424A03F6538D9B633F4FF3B" italics="true" pageId="10" pageNumber="313">Petta pellucida</emphasis>
</taxonomicName>
is easily distinguished from
<taxonomicName id="4C014D72D424A03F621FD9EA31CFFF3B" authorityName="McIntosh" authorityYear="1885" box="[582,708,225,251]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="10" pageNumber="313" phylum="Annelida" rank="species" species="assimilis">
<emphasis id="B975EAE3D424A03F621FD9EA31CFFF3B" box="[582,708,225,251]" italics="true" pageId="10" pageNumber="313">P. assimilis</emphasis>
</taxonomicName>
that has continuous row of lappets on the ventro-lateral lobes of segment 3, whereas
<taxonomicName id="4C014D72D424A03F61D9D80E310EFEDF" baseAuthorityName="Ehlers" baseAuthorityYear="1887" box="[384,517,261,287]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="10" pageNumber="313" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D424A03F61D9D80E310EFEDF" box="[384,517,261,287]" italics="true" pageId="10" pageNumber="313">P. pellucida</emphasis>
</taxonomicName>
has smooth ventro-lateral lobes on segment 3.
<taxonomicName id="4C014D72D424A03F647CD80E37DAFEDF" baseAuthorityName="Ehlers" baseAuthorityYear="1887" box="[1061,1233,261,287]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="10" pageNumber="313" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D424A03F647CD80E37DAFEDF" box="[1061,1233,261,287]" italics="true" pageId="10" pageNumber="313">Petta pellucida</emphasis>
</taxonomicName>
has neurochaetae from segments 7 onwards according to
<bibRefCitation id="EF904B00D424A03F6201D82131FFFE83" author="Ehlers, E." box="[600,756,297,323]" pageId="10" pageNumber="313" pagination="1 - 335" refId="ref15498" refString="Ehlers, E. (1887) Reports on the results of dredging, under the direction of L. F. Pourtales, during the years 1868 - 1870, and of Alexander Agassiz, in the Gulf of Mexico (1877 - 78), and in the Caribbean Sea (1878 - 79), in the U. S. Coast Survey steamer &quot; Blake &quot;, Lieut-Com. C. D. Sigsbee, U. S. N. and Commander J. R. Bartlett, U. S. N., commanding. XXXI. Report on the Annelids. Memoirs of the Museum of Comparative Zoology at Harvard College, 15, 1 - 335. https: // doi. org / 10.5962 / bhl. title. 65639" type="journal article" year="1887">Ehlers (1887)</bibRefCitation>
, whereas in other all pectinariid species neurochaetae occur from segment 8. However, this cannot be confirmed on the
<typeStatus id="54BA8853D424A03F6313D8453071FEA7" box="[842,890,333,359]" pageId="10" pageNumber="313">type</typeStatus>
and perhaps Ehlers misinterpreted the segment numbering.
</paragraph>
</subSubSection>
<caption id="DF7E6679D424A03F60CEDE6F3090F82C" httpUri="https://zenodo.org/record/3242415/files/figure.png" pageId="10" pageNumber="313" startId="10.[151,250,1895,1920]" targetBox="[173,1415,395,1854]" targetPageId="10">
<paragraph id="8BBE36F1D424A03F60CEDE6F3090F82C" blockId="10.[151,1437,1895,2028]" pageId="10" pageNumber="313">
<emphasis id="B975EAE3D424A03F60CEDE6F321FF840" bold="true" box="[151,276,1895,1920]" pageId="10" pageNumber="313">FIGURE 6.</emphasis>
<taxonomicName id="4C014D72D424A03F6144DE60315DF8BF" authority="(Ehlers, 1887)" authorityName="Ehlers" authorityYear="1887" baseAuthorityName="Ehlers" baseAuthorityYear="1887" box="[285,598,1895,1920]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="10" pageNumber="313" phylum="Annelida" rank="species" species="pellucida">
<emphasis id="B975EAE3D424A03F6144DE6032B3F8BF" box="[285,440,1895,1919]" italics="true" pageId="10" pageNumber="313">Petta pellucida</emphasis>
(
<bibRefCitation id="EF904B00D424A03F619EDE6F3144F8BF" author="Ehlers, E." box="[455,591,1895,1920]" pageId="10" pageNumber="313" pagination="1 - 335" refId="ref15498" refString="Ehlers, E. (1887) Reports on the results of dredging, under the direction of L. F. Pourtales, during the years 1868 - 1870, and of Alexander Agassiz, in the Gulf of Mexico (1877 - 78), and in the Caribbean Sea (1878 - 79), in the U. S. Coast Survey steamer &quot; Blake &quot;, Lieut-Com. C. D. Sigsbee, U. S. N. and Commander J. R. Bartlett, U. S. N., commanding. XXXI. Report on the Annelids. Memoirs of the Museum of Comparative Zoology at Harvard College, 15, 1 - 335. https: // doi. org / 10.5962 / bhl. title. 65639" type="journal article" year="1887">Ehlers, 1887</bibRefCitation>
)
</taxonomicName>
. Types (MCZ ANNc-2559): A. Lateral view of entire twisted body; B. Tubes; C. Tube broken to reveal damaged body; D. Dorso-lateral view of posterior end; E. Scaphal hooks; F–G. Close-up view of notochaetae from anterior row, segment 14; H. Tip of notochaeta from posterior row, segment 14; I–J. Uncini, segment 14. Abbreviations: noc, notochaetae; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks.
</paragraph>
</caption>
<subSubSection id="C31B657AD425A03E60CED9923126FEDA" pageId="11" pageNumber="314" type="reference_group">
<paragraph id="8BBE36F1D425A03E60CED99232D1FF74" blockId="11.[151,474,154,216]" box="[151,474,154,180]" pageId="11" pageNumber="314">
<taxonomicName id="4C014D72D425A03E60CED99232D1FF74" ID-CoL="76VTK" authority="Caullery, 1944" authorityName="Caullery" authorityYear="1944" box="[151,474,154,180]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="11" pageNumber="314" phylum="Annelida" rank="species" species="tenuis">
<emphasis id="B975EAE3D425A03E60CED992322EFF74" bold="true" box="[151,293,154,180]" italics="true" pageId="11" pageNumber="314">Petta tenuis</emphasis>
<bibRefCitation id="EF904B00D425A03E6174D99232D1FF74" author="Caullery, M." box="[301,474,154,180]" pageId="11" pageNumber="314" pagination="1 - 204" refId="ref15295" refString="Caullery, M. (1944) Polychetes Sedentaires de l'Expedition du Siboga: Ariciidae, Spionidae, Chaetopteridae, Chlorhaemidae, Opheliidae, Oweniidae, Sabellariidae, Sternaspidae, Amphictenidae, Ampharetidae, Terebellidae. Siboga-Expeditie Uitkomsten op Zoologisch, Bonatisch, Oceanographisch en Geologisch gebied verzameld in Nederlandsch Oost-Indie 1899 - 1900, XXIV 2 bis, 1 - 204." type="journal article" year="1944">Caullery, 1944</bibRefCitation>
</taxonomicName>
</paragraph>
<paragraph id="8BBE36F1D425A03E60CED9B63252FF18" blockId="11.[151,474,154,216]" box="[151,345,190,216]" pageId="11" pageNumber="314">
<figureCitation id="133A2A74D425A03E60CED9B633F0FF18" box="[151,251,190,216]" captionStart-0="FIGURE 7" captionStart-1="FIGURE 8" captionStartId-0="12.[151,250,1788,1813]" captionStartId-1="13.[151,250,1566,1591]" captionTargetBox-0="[173,1415,460,1748]" captionTargetBox-1="[173,1415,166,1526]" captionTargetId-0="figure@12.[173,1415,460,1748]" captionTargetId-1="figure@13.[173,1415,166,1526]" captionTargetPageId-0="12" captionTargetPageId-1="13" captionText-0="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." captionText-1="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri-0="https://zenodo.org/record/3242417/files/figure.png" httpUri-1="https://zenodo.org/record/3242419/files/figure.png" pageId="11" pageNumber="314">Figs 7–8</figureCitation>
,
<tableCitation id="C683034AD425A03E615FD9B63252FF18" box="[262,345,190,216]" captionStart="TABLE 2" captionStartId="22.[151,239,654,680]" captionTargetBox="[165,1992,707,1580]" captionText="TABLE 2. A summary of comparative diagnostic characters for the species of the genus Petta species as used in this study." httpUri="http://table.plazi.org/id/DF7E6679D438A02360CEDB8636B2FD68" pageId="11" pageNumber="314" tableUuid="DF7E6679D438A02360CEDB8636B2FD68">Table 2</tableCitation>
</paragraph>
<paragraph id="8BBE36F1D425A03E60CED80B3126FEDA" blockId="11.[151,557,257,282]" box="[151,557,257,282]" pageId="11" pageNumber="314">
<treatmentCitationGroup id="AB1111DFD425A03E60CED80B3126FEDA" box="[151,557,257,282]" pageId="11" pageNumber="314">
<taxonomicName id="4C014D72D425A03E60CED80B32D8FEDA" ID-CoL="76VTK" authority="Caullery, 1944: 75" authorityName="Caullery" authorityPageNumber="75" authorityYear="1944" box="[151,467,257,282]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="11" pageNumber="314" phylum="Annelida" rank="species" species="tenuis">
<emphasis id="B975EAE3D425A03E60CED80B321BFEDA" box="[151,272,259,282]" italics="true" pageId="11" pageNumber="314">Petta tenuis</emphasis>
<treatmentCitation id="0AA010E0D425A03E614FD80932D8FEDA" author="Caullery, M." box="[278,467,257,282]" page="75" pageId="11" pageNumber="314" year="1944">
<bibRefCitation id="EF904B00D425A03E614FD80932D8FEDA" author="Caullery, M." box="[278,467,257,282]" pageId="11" pageNumber="314" pagination="1 - 204" refId="ref15295" refString="Caullery, M. (1944) Polychetes Sedentaires de l'Expedition du Siboga: Ariciidae, Spionidae, Chaetopteridae, Chlorhaemidae, Opheliidae, Oweniidae, Sabellariidae, Sternaspidae, Amphictenidae, Ampharetidae, Terebellidae. Siboga-Expeditie Uitkomsten op Zoologisch, Bonatisch, Oceanographisch en Geologisch gebied verzameld in Nederlandsch Oost-Indie 1899 - 1900, XXIV 2 bis, 1 - 204." type="journal article" year="1944">Caullery, 1944: 75</bibRefCitation>
</treatmentCitation>
</taxonomicName>
, Fig. 61.
</treatmentCitationGroup>
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD425A03E60CED84032D8FE46" pageId="11" pageNumber="314" type="materials_examined">
<paragraph id="8BBE36F1D425A03E60CED84032D8FE46" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
<emphasis id="B975EAE3D425A03E60CED8403274FEA3" bold="true" box="[151,383,328,355]" pageId="11" pageNumber="314">Material examined.</emphasis>
<materialsCitation id="3B693CACD425A03E61DDD84132C4FE46" ID-GBIF-Occurrence="2251813249" collectionCode="NBC, ZMA" collectorName="V. Pol." country="Philippines" elevation="275" latitude="6.1333" location="Sulu" longLatPrecision="1" longitude="121.3167" pageId="11" pageNumber="314" specimenCount="2" stateProvince="Sulu" typeStatus="syntype">
<typeStatus id="54BA8853D425A03E61DDD84132E0FEA3" box="[388,491,329,355]" pageId="11" pageNumber="314" type="syntype">Syntypes</typeStatus>
<specimenCount id="9D07FD78D425A03E61A8D8413172FEA2" box="[497,633,328,355]" pageId="11" pageNumber="314" type="generic">2 specimens</specimenCount>
and 1 empty tube:
<collectionCode id="ED10AE34D425A03E6310D8413088FEA3" box="[841,899,329,355]" pageId="11" pageNumber="314">NBC</collectionCode>
<collectionCode id="ED10AE34D425A03E63D1D84130CEFEA3" box="[904,965,329,355]" country="Netherlands" httpUri="http://grbio.org/cool/a65z-wv6r" name="Universiteit van Amsterdam, Zoologisch Museum" pageId="11" pageNumber="314">ZMA</collectionCode>
<collectorName id="26F45327D425A03E6393D8403705FEA2" box="[970,1038,328,354]" pageId="11" pageNumber="314">V.Pol.</collectorName>
1516,
<collectingRegion id="49C5F813D425A03E6401D8403785FEA2" box="[1112,1166,328,354]" country="Philippines" name="Sulu" pageId="11" pageNumber="314">Sulu</collectingRegion>
,
<collectingCountry id="F3167661D425A03E64CED840361EFEA2" box="[1175,1301,328,354]" name="Philippines" pageId="11" pageNumber="314">Philippines</collectingCountry>
<geoCoordinate id="EE355036D425A03E6542D8403697FEA2" box="[1307,1436,328,354]" degrees="6" direction="north" minutes="07.998" orientation="latitude" pageId="11" pageNumber="314" precision="1" value="6.1333">6º07.998´N</geoCoordinate>
<geoCoordinate id="EE355036D425A03E60CED865323FFE47" box="[151,308,365,391]" degrees="121" direction="east" minutes="19.002" orientation="longitude" pageId="11" pageNumber="314" precision="1" value="121.3167">121º19.002´E</geoCoordinate>
,
<elevation id="002CD1C2D425A03E6166D86432C4FE46" box="[319,463,364,391]" metricMagnitude="2" metricUnit="m" metricValue="2.75" pageId="11" pageNumber="314" unit="m" value="275.0">
<quantity id="4CF99B14D425A03E6166D864328DFE47" box="[319,390,364,391]" metricMagnitude="2" metricUnit="m" metricValue="2.75" pageId="11" pageNumber="314" unit="m" value="275.0">275 m</quantity>
depth
</elevation>
</materialsCitation>
.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD425A03E609ED89830D6F877" pageId="11" pageNumber="314" type="description">
<paragraph id="8BBE36F1D425A03E609ED898304DFE32" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
<emphasis id="B975EAE3D425A03E609ED898325AFE6B" bold="true" box="[199,337,400,427]" pageId="11" pageNumber="314">Description</emphasis>
. Based on both
<typeStatus id="54BA8853D425A03E625CD8993161FE6B" box="[517,618,401,427]" pageId="11" pageNumber="314" type="syntype">syntypes</typeStatus>
, although one has been dried and become twisted (
<figureCitation id="133A2A74D425A03E64F8D89837E8FE6B" box="[1185,1251,400,427]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7</figureCitation>
B–C). Preserved specimens pale in colour. Body cylindrical, curved dorsally (
<figureCitation id="133A2A74D425A03E6319D8BC3088FE0F" box="[832,899,436,463]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7</figureCitation>
B–D). Body length 16.6 and
<quantity id="4CF99B14D425A03E6491D8BD3627FE0F" box="[1224,1324,437,463]" metricMagnitude="-2" metricUnit="m" metricValue="1.89" pageId="11" pageNumber="314" unit="mm" value="18.9">18.9 mm</quantity>
including paleae and scaphe, width 2.2 and
<quantity id="4CF99B14D425A03E6249D8D1316DFE33" box="[528,614,473,499]" metricMagnitude="-3" metricUnit="m" metricValue="2.3" pageId="11" pageNumber="314" unit="mm" value="2.3">2.3 mm</quantity>
at cephalic regions.
</paragraph>
<paragraph id="8BBE36F1D425A03E609ED8F4302CFD43" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
Cephalic veil heart-shaped with pointed median extension, free from operculum, with smooth margins (
<figureCitation id="133A2A74D425A03E6536D8F433AEFDFB" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7</figureCitation>
E–F). Pair of ventro-lateral ear-shaped lobes (palps) adjacent to dorsal base of cephalic veil. Buccal tentacles short, with longitudinal grooves, arising from around buccal cavity, posterior to cephalic veil (
<figureCitation id="133A2A74D425A03E642CDB4C37C0FD9F" box="[1141,1227,580,607]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7F</figureCitation>
). Ventral lower lip not visible between buccal cavity and segment 1 (
<figureCitation id="133A2A74D425A03E629CDB603011FD43" box="[709,794,616,643]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7F</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDB84379CFD0B" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
Operculum semicircular; dorsal and lateral margins short and smooth; ventral margin (opercular ridge) with 11 pairs of amber-coloured, stout paleae, curved dorsally, and with long pointed tips (
<figureCitation id="133A2A74D425A03E646BDBB83781FD0B" box="[1074,1162,688,715]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7C</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDBDC3047FC9B" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
First pair of tentacular cirri annulated, arising from connection of opercular margin and paleal ridge, not extending beyond tips of paleae, cirri elongated with rounded tips arising from triangular base (
<figureCitation id="133A2A74D425A03E64DFDBF0360AFCD3" box="[1158,1281,760,787]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7E, G</figureCitation>
). Pair of long narrow ventral lappets present on segment 1, arising under ventral lobes of segment 2 (
<figureCitation id="133A2A74D425A03E6403DA143790FCF7" box="[1114,1179,796,823]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7</figureCitation>
E–F). Ventral region of segment 1 covered by ventral lobes of segment 2 (
<figureCitation id="133A2A74D425A03E6293DA483007FC9B" box="[714,780,832,859]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7</figureCitation>
E–F).
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDA6C3048FBCF" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
Second pair of tentacular cirri almost same length as first, weakly annulated, and slightly displaced dorsally, inserted on latero-median connecting ridge of segment 2 (
<figureCitation id="133A2A74D425A03E634FDA803081FC63" box="[790,906,904,931]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7E, G</figureCitation>
) more elongated than 1
<taxonomicName id="4C014D72D425A03E64D6DA8037C7FC62" box="[1167,1228,904,930]" pageId="11" pageNumber="314" rank="subSpecies" subSpecies="pair">
<superScript id="7C749BB9D425A03E64D6DA803791FC56" attach="left" box="[1167,1178,904,918]" fontSize="6" pageId="11" pageNumber="314">st</superScript>
pair
</taxonomicName>
arising from triangular base. Segment 2 with pair of broad ventro-lateral lobes separated from each other by narrow deep mid-ventral groove, left ventro-lateral lobe with 5 triangular lappets and right ventro-lateral lobe with 4 triangular lappets on one
<typeStatus id="54BA8853D425A03E60CEDAFD33CCFBCF" box="[151,199,1013,1039]" pageId="11" pageNumber="314">type</typeStatus>
(
<figureCitation id="133A2A74D425A03E608EDAFC3244FBCF" box="[215,335,1012,1039]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7E, G</figureCitation>
), but not possible to count on the other
<typeStatus id="54BA8853D425A03E6352DAFD3034FBCF" box="[779,831,1013,1039]" pageId="11" pageNumber="314">type</typeStatus>
.
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDD11361DFB96" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
Two pairs of similar sized comb-like branchiae on segments 3–4, consisting of large basal hump and series of loose flat lamellae (
<figureCitation id="133A2A74D425A03E612DDD3432C5FB97" box="[372,462,1084,1111]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7H</figureCitation>
). First pair of branchiae on segment 3 inserted more ventrally than 2
<superScript id="7C749BB9D425A03E6494DD3337D6FB89" attach="left" box="[1229,1245,1083,1097]" fontSize="6" pageId="11" pageNumber="314">nd</superScript>
pair.
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDD68369BFBBB" blockId="11.[151,1437,328,2011]" box="[199,1424,1120,1147]" pageId="11" pageNumber="314">
Pair of dorso-lateral pads small and smooth, arising from dorsal side of notopodia on segment 5 (
<figureCitation id="133A2A74D425A03E655FDD683642FBBB" box="[1286,1353,1120,1147]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7</figureCitation>
G–H).
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDD8C32D6FA5A" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
Distinct ventral glandular lobes (pads) present on segments 2–7, becoming progressively more lateral and broader on segments 3–5 (
<figureCitation id="133A2A74D425A03E619BDDA0310EFB03" box="[450,517,1192,1219]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7</figureCitation>
D–E). Hump near branchiae absent on ventral lobes of segment 4 (
<figureCitation id="133A2A74D425A03E64A0DDA0365FFB03" box="[1273,1364,1192,1219]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7G</figureCitation>
). Segment 3 with a pair of smooth broad ventro-lateral lobes and a pair of mid-ventral lappets, separated from those by deep notches; ventro-lateral lobes with a triangular projection on ventral margin; mid-ventral lappets narrow about 1/6 length of ventro-lateral lobes, and more posterior than ventro-lateral lobes (
<figureCitation id="133A2A74D425A03E644BDC1C3761FAEF" box="[1042,1130,1300,1327]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7E</figureCitation>
). Segments 4–6 with a pair of long ventro-lateral lobes separated by a shallow median groove becoming progressively broader on segments 4–6. Segment 7 with a pair of broad ventro-lateral lobes separated from each other by median swelling about 1/4 width of ventro-lateral lobes.
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDCAC314DF97B" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
Notopodia of segment 1 with paleae, segments 5–21 (17 pairs) with two rows of different chaetae; anterior row of shorter chaetae with distal serrated wings, anterior surface below wing to about mid-basal portion of chaeta covered with numerous minute spines; posterior row with longer capillary chaetae, straight and stout, tapering to acute tip, anterior surface covered with numerous spines from mid-length to tip (
<figureCitation id="133A2A74D425A03E6449DF18375AF9EB" box="[1040,1105,1552,1579]" captionStart="FIGURE 8" captionStartId="13.[151,250,1566,1591]" captionTargetBox="[173,1415,166,1526]" captionTargetId="figure@13.[173,1415,166,1526]" captionTargetPageId="13" captionText="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242419/files/figure.png" pageId="11" pageNumber="314">Fig. 8</figureCitation>
C–F). Neuropodia 14 pairs on segments 8–21, each with slightly raised torus bearing a transverse row of uncini. Each uncinus with one rounded anterior peg with blunt tip embedded into torus, followed by several rows of minor teeth on a swelling, a longitudinal row of two major teeth, both covered with many small teeth basally (
<figureCitation id="133A2A74D425A03E6384DF743715F957" box="[989,1054,1660,1687]" captionStart="FIGURE 8" captionStartId="13.[151,250,1566,1591]" captionTargetBox="[173,1415,166,1526]" captionTargetId="figure@13.[173,1415,166,1526]" captionTargetPageId="13" captionText="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242419/files/figure.png" pageId="11" pageNumber="314">Fig. 8</figureCitation>
G–H). Neuropodia on segment 21 with enlarged posterior lobe (
<figureCitation id="133A2A74D425A03E61B8DFA83132F97B" box="[481,569,1696,1723]" captionStart="FIGURE 8" captionStartId="13.[151,250,1566,1591]" captionTargetBox="[173,1415,166,1526]" captionTargetId="figure@13.[173,1415,166,1526]" captionTargetPageId="13" captionText="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242419/files/figure.png" pageId="11" pageNumber="314">Fig. 8B</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDFCC3077F853" blockId="11.[151,1437,328,2011]" pageId="11" pageNumber="314">
Scaphe ovoid, flattened dorsally, not separated by a constriction from abdomen. Lateral margins dorsally rolled with six pairs of lobes; first pair of lobes largest and elongated, connecting with dorsal margin of scaphe; posterior lobes narrow triangular, almost same size; dorsal margin of scaphe smooth (
<figureCitation id="133A2A74D425A03E63A7DE043749F8E7" box="[1022,1090,1804,1831]" captionStart="FIGURE 8" captionStartId="13.[151,250,1566,1591]" captionTargetBox="[173,1415,166,1526]" captionTargetId="figure@13.[173,1415,166,1526]" captionTargetPageId="13" captionText="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242419/files/figure.png" pageId="11" pageNumber="314">Fig. 8</figureCitation>
A–B). Anal flap vestigial with oblong swollen area distally bearing long anal cirrus (
<figureCitation id="133A2A74D425A03E62B3DE383021F88B" box="[746,810,1840,1867]" captionStart="FIGURE 8" captionStartId="13.[151,250,1566,1591]" captionTargetBox="[173,1415,166,1526]" captionTargetId="figure@13.[173,1415,166,1526]" captionTargetPageId="13" captionText="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242419/files/figure.png" pageId="11" pageNumber="314">Fig. 8</figureCitation>
A–B). Anus located behind anal cirrus, between last pair of lateral lobes on scaphe. Eight pairs of scaphal hooks, arising from both sides of dorsal margin of scaphe, ambercoloured, slightly curved dorsally, ending with blunt tips (
<figureCitation id="133A2A74D425A03E6379DE703065F853" box="[800,878,1912,1939]" captionStart="FIGURE 8" captionStartId="13.[151,250,1566,1591]" captionTargetBox="[173,1415,166,1526]" captionTargetId="figure@13.[173,1415,166,1526]" captionTargetPageId="13" captionText="FIGURE 8. Petta tenuis Caullery, 1944. Methyl green stained body and chaetae of syntype 2 (NBC ZMA.V.Pol. 1516): A. Ventral view of posterior end; B. Lateral view of posterior end, showing lobes on lateral margin of scaphe; C, F. Close-up view of notochaetae from anterior row, segment 14; D–E. Close-up view of notochaetae from posterior row, segment 14; G–H. Uncini, segment 14; I. Scaphal hooks.Abbreviations: ac, anal cirrus; dms, dorsal margin of scaphe; nec, neurochaetae; noc, notochaetae; s, segment; sc, scaphe; sh, scaphal hooks." httpUri="https://zenodo.org/record/3242419/files/figure.png" pageId="11" pageNumber="314">
Fig.
<date id="FFBF1031D425A03E630DDE713065F853" box="[852,878,1913,1939]" pageId="11" pageNumber="314">8I</date>
</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D425A03E609EDE9430D6F877" blockId="11.[151,1437,328,2011]" box="[199,989,1948,1975]" pageId="11" pageNumber="314">
Tube slightly curved, robust, made of sand grains and shells (
<figureCitation id="133A2A74D425A03E632FDE9430DBF877" box="[886,976,1948,1975]" captionStart="FIGURE 7" captionStartId="12.[151,250,1788,1813]" captionTargetBox="[173,1415,460,1748]" captionTargetId="figure@12.[173,1415,460,1748]" captionTargetPageId="12" captionText="FIGURE 7. Petta tenuis Caullery, 1944. Syntype 1 (NBC ZMA.V.Pol. 1516): A. Tube; B. Latero-vental view of entire twisted body. Methyl green stained body of syntype 2 (NBC ZMA.V.Pol. 1516): C. Dorsal view of entire body; D. Ventral view of entire body; E. Ventral view of anterior end; F. Close-up view of cephalic veil, ventral view; G. Lateral view of anterior end; H. Closeup view of left branchiae 1–2, lateral view. Abbreviations: ac, anal cirrus; br, branchiae; bt, buccal tentacles; cv, cephalic veil; hb, hump of branchia; lb, lamellae of branchia; dlp, dorso-lateral pad; nec, neurochaetae; noc, notochaetae; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; tc, tentacular cirri; sh, scaphal hooks; vl, ventral lappet." httpUri="https://zenodo.org/record/3242417/files/figure.png" pageId="11" pageNumber="314">Fig. 7A</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD425A039609EDEC83030FF73" lastPageId="12" lastPageNumber="315" pageId="11" pageNumber="314" type="distribution">
<paragraph id="8BBE36F1D425A03E609EDEC83742F81A" blockId="11.[151,1437,328,2011]" box="[199,1097,1984,2011]" pageId="11" pageNumber="314">
<emphasis id="B975EAE3D425A03E609EDEC8326AF81B" bold="true" box="[199,353,1984,2011]" pageId="11" pageNumber="314">Distribution.</emphasis>
<collectingRegion id="49C5F813D425A03E613EDEC83291F81A" box="[359,410,1984,2010]" country="Philippines" name="Sulu" pageId="11" pageNumber="314">Sulu</collectingRegion>
Sea,
<collectingCountry id="F3167661D425A03E6181DEC8315DF81A" box="[472,598,1984,2010]" name="Philippines" pageId="11" pageNumber="314">Philippines</collectingCountry>
(
<figureCitation id="133A2A74D425A03E623FDEC831ACF81B" box="[614,679,1984,2011]" captionStart="FIGURE 1" captionStartId="3.[151,250,1819,1844]" captionTargetBox="[151,1436,1180,1799]" captionTargetId="figure@3.[151,1436,1157,1799]" captionTargetPageId="3" captionText="FIGURE 1. Type localities of all Petta species." httpUri="https://zenodo.org/record/3242405/files/figure.png" pageId="11" pageNumber="314">Fig. 1</figureCitation>
). Known only from the
<typeStatus id="54BA8853D425A03E63E1DEC930E3F81B" box="[952,1000,1985,2011]" pageId="11" pageNumber="314">type</typeStatus>
locality.
</paragraph>
<paragraph id="8BBE36F1D422A039609ED9903030FF73" blockId="12.[151,1437,152,431]" box="[199,827,152,179]" pageId="12" pageNumber="315">
<emphasis id="B975EAE3D422A039609ED9903221FF73" bold="true" box="[199,298,152,179]" pageId="12" pageNumber="315">Habitat.</emphasis>
<quantity id="4CF99B14D422A0396168D9903271FF73" box="[305,378,152,179]" metricMagnitude="2" metricUnit="m" metricValue="2.75" pageId="12" pageNumber="315" unit="m" value="275.0">275 m</quantity>
, no information on sediments available.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD422A039609ED9B5373EFE6F" pageId="12" pageNumber="315" type="discussion">
<paragraph id="8BBE36F1D422A039609ED9B5373EFE6F" blockId="12.[151,1437,152,431]" pageId="12" pageNumber="315">
<emphasis id="B975EAE3D422A039609ED9B5323FFF17" bold="true" box="[199,308,189,215]" pageId="12" pageNumber="315">Remarks</emphasis>
. No
<typeStatus id="54BA8853D422A0396135D9B532C5FF17" box="[364,462,189,215]" pageId="12" pageNumber="315" type="holotype">holotype</typeStatus>
was designated by
<bibRefCitation id="EF904B00D422A03962F5D9B53054FF17" author="Caullery, M." box="[684,863,189,215]" pageId="12" pageNumber="315" pagination="1 - 204" refId="ref15295" refString="Caullery, M. (1944) Polychetes Sedentaires de l'Expedition du Siboga: Ariciidae, Spionidae, Chaetopteridae, Chlorhaemidae, Opheliidae, Oweniidae, Sabellariidae, Sternaspidae, Amphictenidae, Ampharetidae, Terebellidae. Siboga-Expeditie Uitkomsten op Zoologisch, Bonatisch, Oceanographisch en Geologisch gebied verzameld in Nederlandsch Oost-Indie 1899 - 1900, XXIV 2 bis, 1 - 204." type="journal article" year="1944">Caullery (1944)</bibRefCitation>
and the original description is based on two specimens (
<typeStatus id="54BA8853D422A03960BBD9E93241FF3B" box="[226,330,225,251]" pageId="12" pageNumber="315" type="syntype">syntypes</typeStatus>
). The two
<typeStatus id="54BA8853D422A0396199D9E9311CFF3B" box="[448,535,225,251]" pageId="12" pageNumber="315" type="syntype">syntype</typeStatus>
specimens of
<taxonomicName id="4C014D72D422A03962E0D9EA3013FF3B" authorityName="Caullery" authorityYear="1944" box="[697,792,226,251]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="12" pageNumber="315" phylum="Annelida" rank="species" species="tenuis">
<emphasis id="B975EAE3D422A03962E0D9EA3013FF3B" box="[697,792,226,251]" italics="true" pageId="12" pageNumber="315">P. tenuis</emphasis>
</taxonomicName>
are twisted, and only one type could be examined for the morphological characters of the anterior and posterior ends. We have expanded the description to give details of a pair of lateral ear-shaped lobes (palps) adjacent to dorsal base of cephalic veil, pair of ventral lappets on segment 1, pair of dorso-lateral pads in segment 5, basal hump of branchia and details of uncini.
<taxonomicName id="4C014D72D422A039642ED84637F6FEA7" authorityName="Caullery" authorityYear="1944" box="[1143,1277,334,359]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="12" pageNumber="315" phylum="Annelida" rank="species" species="tenuis">
<emphasis id="B975EAE3D422A039642ED84637F6FEA7" box="[1143,1277,334,359]" italics="true" pageId="12" pageNumber="315">Petta tenuis</emphasis>
</taxonomicName>
can be distinguished from other species of
<taxonomicName id="4C014D72D422A03961ABD87A3126FE4B" authorityName="Malmgren" authorityYear="1866" box="[498,557,370,395]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="12" pageNumber="315" phylum="Annelida" rank="genus">
<emphasis id="B975EAE3D422A03961ABD87A3126FE4B" box="[498,557,370,395]" italics="true" pageId="12" pageNumber="315">Petta</emphasis>
</taxonomicName>
by ventro-lateral lobes on segment 2 with 4–5 triangular lappets and ventrolateral lobes on segment 3 with a triangular projection on ventral margin (
<tableCitation id="C683034AD422A0396389D89D3723FE6F" box="[976,1064,405,431]" captionStart="TABLE 2" captionStartId="22.[151,239,654,680]" captionTargetBox="[165,1992,707,1580]" captionText="TABLE 2. A summary of comparative diagnostic characters for the species of the genus Petta species as used in this study." httpUri="http://table.plazi.org/id/DF7E6679D438A02360CEDB8636B2FD68" pageId="12" pageNumber="315" tableUuid="DF7E6679D438A02360CEDB8636B2FD68">Table 2</tableCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>
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