treatments-xml/data/03/A8/87/03A887E7D423A02460CEDE123104F873.xml
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<document id="53CD1D27A3F240E0586196FAD94E609E" 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="03A887E7D423A02460CEDE123104F873" 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 investigatoris Zhang &amp; Hutchings &amp; Kupriyanova 2019, n. sp." docType="treatment" docVersion="10" lastPageNumber="320" 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="316" updateTime="1698733849990" updateUser="ExternalLinkService">
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<mods:title id="0FE2C5D3622070CE73BF7275F2C44C4B">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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<heading id="D0F6819DD423A03860CEDE1232C3F8F4" bold="true" box="[151,456,1818,1844]" fontSize="11" level="1" pageId="13" pageNumber="316" reason="1">
<emphasis id="B975EAE3D423A03860CEDE1232C3F8F4" bold="true" box="[151,456,1818,1844]" pageId="13" pageNumber="316">
<taxonomicName id="4C014D72D423A03860CEDE123276F8F4" ID-CoL="85RRV" authority="Zhang &amp; Hutchings &amp; Kupriyanova, 2019" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[151,381,1818,1844]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="13" pageNumber="316" phylum="Annelida" rank="species" species="investigatoris" status="sp. nov.">
<emphasis id="B975EAE3D423A03860CEDE123276F8F4" bold="true" box="[151,381,1818,1844]" italics="true" pageId="13" pageNumber="316">Petta investigatoris</emphasis>
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<subSubSection id="C31B657AD423A03860CEDE35326DF898" box="[151,358,1853,1880]" pageId="13" pageNumber="316" type="description">
<paragraph id="8BBE36F1D423A03860CEDE35326DF898" blockId="13.[151,456,1818,1880]" box="[151,358,1853,1880]" pageId="13" pageNumber="316">
<figureCitation id="133A2A74D423A03860CEDE353203F898" box="[151,264,1853,1880]" captionStart-0="FIGURE 9" captionStart-1="FIGURE 10" captionStart-2="FIGURE 11" captionStartId-0="15.[151,250,1690,1715]" captionStartId-1="16.[151,250,1748,1773]" captionStartId-2="17.[151,250,1297,1322]" captionTargetBox-0="[188,1391,166,1651]" captionTargetBox-1="[172,1413,212,1691]" captionTargetBox-2="[170,1418,196,1225]" captionTargetId-0="figure@15.[187,1399,166,1655]" captionTargetId-1="figure@16.[171,1416,211,1691]" captionTargetId-2="figure@17.[170,1418,196,1225]" captionTargetPageId-0="15" captionTargetPageId-1="16" captionTargetPageId-2="17" captionText-0="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." captionText-1="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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 11. Chaetae of Petta investigatoris n. sp. Holotype (AM W.50672) AC. Close-up view of notochaetae, segment 12; B. Tip of notochaeta from posterior row; C. Tips of notochaetae from anterior row; DE. Uncini, segment 12." httpUri-0="https://zenodo.org/record/3242421/files/figure.png" httpUri-1="https://zenodo.org/record/3242423/files/figure.png" httpUri-2="https://zenodo.org/record/3242425/files/figure.png" pageId="13" pageNumber="316">Figs 911</figureCitation>
,
<tableCitation id="C683034AD423A038614ADE35326DF898" box="[275,358,1853,1880]" 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="13" pageNumber="316" tableUuid="DF7E6679D438A02360CEDB8636B2FD68">Table 2</tableCitation>
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<emphasis id="B975EAE3D423A03860CEDE8D3289F860" bold="true" box="[151,386,1925,1952]" pageId="13" pageNumber="316">Material examined:</emphasis>
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:
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W.50671,
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, 2650
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”, Voyage 3 St. 056, Beam Trawl,
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W.50668,
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, R/V “
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”, Voyage 3 St. 11, biological box corer,
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W.50670,
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” Voyage 3 St. 035, Beam Trawl,
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;
<collectionCode id="ED10AE34D420A03B62BED80D301FFEDF" box="[743,788,261,287]" country="Australia" name="Australian Museum" pageId="14" pageNumber="317" type="Museum">AM</collectionCode>
W.50669,
<specimenCount id="9D07FD78D420A03B63C8D80D371FFEDF" box="[913,1044,261,287]" pageId="14" pageNumber="317" type="generic">1 specimen</specimenCount>
, Bass Strait,
<collectingCountry id="F3167661D420A03B64F0D80D3618FEDF" box="[1193,1299,261,287]" name="Australia" pageId="14" pageNumber="317">Australia</collectingCountry>
,
<geoCoordinate id="EE355036D420A03B6579D80D3697FEDF" box="[1312,1436,261,287]" degrees="39" direction="south" minutes="27.72" orientation="latitude" pageId="14" pageNumber="317" precision="9" value="-39.462">39º27.72´S</geoCoordinate>
<geoCoordinate id="EE355036D420A03B60CED820322DFE83" box="[151,294,296,323]" degrees="149" direction="east" minutes="16.56" orientation="longitude" pageId="14" pageNumber="317" precision="9" value="149.276">149º16.56´E</geoCoordinate>
, 2760
<quantity id="4CF99B14D420A03B6120D82132DAFE83" box="[377,465,297,323]" metricMagnitude="3" metricUnit="m" metricValue="2.6919999999999997" pageId="14" pageNumber="317" unit="m" value="2692.0">2692 m</quantity>
, R/V “
<taxonomicName id="4C014D72D420A03B6247D82131A2FE83" authority="Voyage" authorityName="Voyage" box="[542,681,297,323]" family="Nemichthyidae" genus="Investigator" higherTaxonomySource="CoL" kingdom="Animalia" order="Anguilliformes" pageId="14" pageNumber="317" phylum="Chordata" rank="genus">Investigator</taxonomicName>
” Voyage 3 St. 22, Beam Trawl,
<date id="FFBF1031D420A03B6441D8213784FE83" box="[1048,1167,297,323]" pageId="14" pageNumber="317" value="2017-05">May 2017</date>
;
<collectionCode id="ED10AE34D420A03B64C3D82137CCFE83" box="[1178,1223,297,323]" country="Australia" name="Australian Museum" pageId="14" pageNumber="317" type="Museum">AM</collectionCode>
W.50666,
<specimenCount id="9D07FD78D420A03B651AD82133C1FEA7" pageId="14" pageNumber="317" type="generic">1 specimen</specimenCount>
, Freycinet
<collectionCode id="ED10AE34D420A03B6110D8453281FEA7" box="[329,394,333,359]" pageId="14" pageNumber="317">CMR</collectionCode>
,
<collectingCountry id="F3167661D420A03B61CCD84532F4FEA7" box="[405,511,333,359]" name="Australia" pageId="14" pageNumber="317">Australia</collectingCountry>
,
<geoCoordinate id="EE355036D420A03B6252D8453183FEA7" box="[523,648,333,359]" degrees="41" direction="south" minutes="43.83" orientation="latitude" pageId="14" pageNumber="317" precision="9" value="-41.7305">41º43.83´S</geoCoordinate>
<geoCoordinate id="EE355036D420A03B62C9D8453014FEA7" box="[656,799,333,359]" degrees="149" direction="east" minutes="7.182" orientation="longitude" pageId="14" pageNumber="317" precision="1" value="149.1197">149º7.182´E</geoCoordinate>
, 2820
<quantity id="4CF99B14D420A03B632AD84430C1FEA7" box="[883,970,332,359]" metricMagnitude="3" metricUnit="m" metricValue="2.751" pageId="14" pageNumber="317" unit="m" value="2751.0">2751 m</quantity>
, coll. R/V “
<taxonomicName id="4C014D72D420A03B6408D84537D7FEA7" authority="Voyage" authorityName="Voyage" box="[1105,1244,333,359]" family="Nemichthyidae" genus="Investigator" higherTaxonomySource="CoL" kingdom="Animalia" order="Anguilliformes" pageId="14" pageNumber="317" phylum="Chordata" rank="genus">Investigator</taxonomicName>
” Voyage 3 St. 4, Beam Trawl,
<date id="FFBF1031D420A03B6176D87932AEFE4B" box="[303,421,369,395]" pageId="14" pageNumber="317" value="2017-05">May 2017</date>
.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD420A024609ED89C3202F9C2" lastPageId="17" lastPageNumber="320" pageId="14" pageNumber="317" type="description">
<paragraph id="8BBE36F1D420A03B609ED89C3744FE13" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
<emphasis id="B975EAE3D420A03B609ED89C325AFE6F" bold="true" box="[199,337,404,431]" pageId="14" pageNumber="317">Description</emphasis>
. Preserved specimens pale reddish in colour, cylindrical in shape (
<figureCitation id="133A2A74D420A03B6419D89D3794FE6F" box="[1088,1183,405,431]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9A</figureCitation>
;
<figureCitation id="133A2A74D420A03B64F2D89D37CCFE6F" box="[1195,1223,405,431]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10</figureCitation>
BC). Body length of
<typeStatus id="54BA8853D420A03B60EFD8B13213FE13" box="[182,280,441,467]" pageId="14" pageNumber="317" type="holotype">holotype</typeStatus>
<quantity id="4CF99B14D420A03B6146D8B13288FE13" box="[287,387,441,467]" metricMagnitude="-2" metricUnit="m" metricValue="2.01" pageId="14" pageNumber="317" unit="mm" value="20.1">20.1 mm</quantity>
including paleae and scaphe, width
<quantity id="4CF99B14D420A03B6340D8B13064FE13" box="[793,879,441,467]" metricMagnitude="-3" metricUnit="m" metricValue="2.7" pageId="14" pageNumber="317" unit="mm" value="2.7">2.7 mm</quantity>
at cephalic regions.
</paragraph>
<paragraph id="8BBE36F1D420A03B609ED8D5303AFDA3" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
Cephalic veil heart-shaped, free from operculum, with narrow triangular anterior end and smooth margin (
<figureCitation id="133A2A74D420A03B6533D8D533B0FDDB" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9C</figureCitation>
;
<figureCitation id="133A2A74D420A03B609FDB0933F0FDDB" box="[198,251,513,539]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10D</figureCitation>
). Pairs of lateral ear-shape lobes (palps) adjacent to dorsal base of cephalic veil (
<figureCitation id="133A2A74D420A03B6424DB0937D9FDDB" box="[1149,1234,513,539]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Fig. 9F</figureCitation>
). Buccal tentacles with broad longitudinal deep grooves, arising from around buccal cavity, posterior to cephalic veil (
<figureCitation id="133A2A74D420A03B64AADB2D365BFDFF" box="[1267,1360,549,575]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9C</figureCitation>
;
<figureCitation id="133A2A74D420A03B6505DB2D369BFDFF" box="[1372,1424,549,575]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10D</figureCitation>
). Lower lip not visible between buccal cavity and segment 1.
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDB6533DEFD0F" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
Operculum semicircular; dorsal and lateral margins well developed, smooth; ventral margin (opercular ridge) with 13 pairs (
<typeStatus id="54BA8853D420A03B6161DB993296FD6C" box="[312,413,657,684]" pageId="14" pageNumber="317" type="holotype">holotype</typeStatus>
) of amber-coloured, stout long notopodial paleae, curved dorsally, with blunt tips (
<figureCitation id="133A2A74D420A03B6562DB99369CFD6B" box="[1339,1431,657,683]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9B</figureCitation>
;
<figureCitation id="133A2A74D420A03B60CEDBBD33C3FD0F" box="[151,200,693,719]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10E</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDBD130D4FC9F" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
First pair of tentacular cirri not extending beyond tips of paleae, not distinctly annulated, arising from connection of opercular margin and paleal ridge (
<figureCitation id="133A2A74D420A03B622EDBF531DEFCD7" box="[631,725,765,791]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9C</figureCitation>
;
<figureCitation id="133A2A74D420A03B62B8DBF5301DFCD7" box="[737,790,765,791]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10D</figureCitation>
). Pair of narrow triangular ventral lappets present behind tentacular cirri, on both sides of segment 1, partly covered by ventral lobes of segment 2 (
<figureCitation id="133A2A74D420A03B64C1DA2937FDFCFB" box="[1176,1270,801,827]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9C</figureCitation>
;
<figureCitation id="133A2A74D420A03B655ADA29363CFCFB" box="[1283,1335,801,827]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10D</figureCitation>
). Ventral region of segment 1 covered by ventral lobes of segment 2 (
<figureCitation id="133A2A74D420A03B636FDA4D3098FC9F" box="[822,915,837,863]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9C</figureCitation>
;
<figureCitation id="133A2A74D420A03B63C6DA4D30D8FC9F" box="[927,979,837,863]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10D</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDA613296FC2F" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
First and 2
<superScript id="7C749BB9D420A03B6167DA603245FCB6" attach="left" box="[318,334,872,886]" fontSize="6" pageId="14" pageNumber="317">nd</superScript>
pairs of tentacular cirri almost same length, annuli not distinct, 2
<superScript id="7C749BB9D420A03B647ADA603738FCB6" attach="left" box="[1059,1075,872,886]" fontSize="6" pageId="14" pageNumber="317">nd</superScript>
pair inserted more dorsally than 1
<taxonomicName id="4C014D72D420A03B60FCDA8433EFFC67" box="[165,228,908,935]" pageId="14" pageNumber="317" rank="subSpecies" subSpecies="pair">
<superScript id="7C749BB9D420A03B60FCDA8433BBFC5A" attach="left" box="[165,176,908,922]" fontSize="6" pageId="14" pageNumber="317">st</superScript>
pair
</taxonomicName>
, on almost mid-laterally connecting ridge of segment 2 (
<figureCitation id="133A2A74D420A03B6338DA8530A3FC67" box="[865,936,909,935]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9</figureCitation>
AB; 10DE). Segment 2 with pair of broad ventro-lateral lobes, each with 78 triangular lappets, separated from each other by a narrow and deep mid-ventral groove (
<figureCitation id="133A2A74D420A03B60ADDADD325BFC2F" box="[244,336,981,1007]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9C</figureCitation>
;
<figureCitation id="133A2A74D420A03B6105DADD329BFC2F" box="[348,400,981,1007]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10D</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDAF1321BFB9B" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
Two pairs of similar sized comb-like branchiae on segments 34, each consisting of large basal hump and series of loose, flat lamellae (
<figureCitation id="133A2A74D420A03B61C7DD1532F5FBF7" box="[414,510,1053,1079]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9G</figureCitation>
;
<figureCitation id="133A2A74D420A03B6252DD153131FBF7" box="[523,570,1053,1079]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10F</figureCitation>
). First pair of branchiae on segment 3 inserted more ventrally than those on segment 4.
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDD6D33DEFB63" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
Pair of dorso-lateral pads small and smooth, arising from dorsal side of notopodia on segment 5 (
<figureCitation id="133A2A74D420A03B6561DD6D369CFBBF" box="[1336,1431,1125,1151]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9B</figureCitation>
;
<figureCitation id="133A2A74D420A03B60CEDD8133C3FB63" box="[151,200,1161,1187]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10E</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDDA53640FA5F" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
Distinct ventral glandular lobes (pads) present on segments 27, becoming progressively more dorsal and broader on segments 35 (
<figureCitation id="133A2A74D420A03B619CDDD9314CFB2B" box="[453,583,1233,1259]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9A, C</figureCitation>
;
<figureCitation id="133A2A74D420A03B620DDDD93164FB2B" box="[596,623,1233,1259]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10</figureCitation>
DE). Segment 3 with a pair of broad ventro-lateral lobes and a pair of short mid-ventral lappets, separated from those lobes by deep notches; ventro-lateral lobes with continuous row of papillae; mid-ventral lappets square rounded and narrow about 1/6 width of ventro-lateral lobes, and more posterior than ventro-lateral lobes (
<figureCitation id="133A2A74D420A03B61E4DC353117FA97" box="[445,540,1341,1367]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9C</figureCitation>
;
<figureCitation id="133A2A74D420A03B6273DC353154FA97" box="[554,607,1341,1367]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10D</figureCitation>
). Segments 46 with a pair of broad ventro-lateral lobes separated from each other by a shallow median groove becoming progressively broader on segments 46. Segment 7 with a pair of ventro-lateral lobes separated from each other by a median swelling about 1/3 width of ventro-lateral lobes.
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDCA130E9F97F" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
Notopodia of segment 1 with paleae, segments 521 (17 pairs) with two rows of chaetae; anterior row of shorter chaetae with distal serrated wings, anterior surface from below wing to about mid-basal portion of chaeta covered with numerous minute spines; posterior row with about 1.5 times longer capillary chaetae, straight and stout, tapering to acute tips, anterior surface covered with numerous spines from mid-length to tip (
<figureCitation id="133A2A74D420A03B64E7DF1D3603F9EF" box="[1214,1288,1557,1583]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9</figureCitation>
IJ; 11AC). Neuropodia on segments 821 (14 pairs), 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, one longitudinal row of two major teeth, both covered by many small teeth basally (
<figureCitation id="133A2A74D420A03B648FDF893638F95B" box="[1238,1331,1665,1691]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9H</figureCitation>
;
<figureCitation id="133A2A74D420A03B6567DF89365CF95B" box="[1342,1367,1665,1691]" captionStart="FIGURE 11" captionStartId="17.[151,250,1297,1322]" captionTargetBox="[170,1418,196,1225]" captionTargetId="figure@17.[170,1418,196,1225]" captionTargetPageId="17" captionText="FIGURE 11. Chaetae of Petta investigatoris n. sp. Holotype (AM W.50672) AC. Close-up view of notochaetae, segment 12; B. Tip of notochaeta from posterior row; C. Tips of notochaetae from anterior row; DE. Uncini, segment 12." httpUri="https://zenodo.org/record/3242425/files/figure.png" pageId="14" pageNumber="317">11</figureCitation>
DE). Neuropodia on segment 21 with elongated posterior lobe (
<figureCitation id="133A2A74D420A03B637ADFAD30ABF97F" box="[803,928,1701,1727]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9A, E</figureCitation>
;
<figureCitation id="133A2A74D420A03B63F5DFAD30DFF97F" box="[940,980,1701,1727]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">
<date id="FFBF1031D420A03B63F5DFAD30DFF97F" box="[940,980,1701,1727]" pageId="14" pageNumber="317" value="2010-01">10I</date>
</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDFC1377DF857" blockId="14.[151,1437,152,1979]" pageId="14" pageNumber="317">
Scaphe long ovoid, flattened dorsally, not distinctly separated by a constriction from posterior segments. Lateral margins dorsally rolled, with six pairs of lobes; first pair of lobes largest, connected to dorsal margin of scaphe; posterior lobes triangular, almost same size; dorsal margin of scaphe smooth with shallow median notch (
<figureCitation id="133A2A74D420A03B6540DE19366BF8EB" box="[1305,1376,1809,1835]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9</figureCitation>
DE; 10FH). Anal flap vestigial with oblong swollen area distally bearing long anal cirrus (
<figureCitation id="133A2A74D420A03B643BDE3D37B6F88F" box="[1122,1213,1845,1871]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9E</figureCitation>
;
<figureCitation id="133A2A74D420A03B6491DE3D37FCF88F" box="[1224,1271,1845,1871]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">10F</figureCitation>
). Anus located behind anal cirrus, between last pair of lateral lobes of scaphe. Nine pairs of scaphal hooks in the
<typeStatus id="54BA8853D420A03B648BDE51363CF8B3" box="[1234,1335,1881,1907]" pageId="14" pageNumber="317" type="holotype">holotype</typeStatus>
, straight, amber-coloured, with blunt tips, on both sides of dorsal margin of scaphe (
<figureCitation id="133A2A74D420A03B6380DE75373EF857" box="[985,1077,1917,1943]" captionStart="FIGURE 9" captionStartId="15.[151,250,1690,1715]" captionTargetBox="[188,1391,166,1651]" captionTargetId="figure@15.[187,1399,166,1655]" captionTargetPageId="15" captionText="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="https://zenodo.org/record/3242421/files/figure.png" pageId="14" pageNumber="317">Figs 9E</figureCitation>
;
<figureCitation id="133A2A74D420A03B6419DE753763F857" box="[1088,1128,1917,1943]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">
<date id="FFBF1031D420A03B6419DE753763F857" box="[1088,1128,1917,1943]" pageId="14" pageNumber="317" value="2010-01">10I</date>
</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D420A03B609EDEA930ADF87B" blockId="14.[151,1437,152,1979]" box="[199,934,1953,1979]" pageId="14" pageNumber="317">
Tube slightly curved, made of coagulations and shells (
<figureCitation id="133A2A74D420A03B6368DEA93092F87B" box="[817,921,1953,1979]" captionStart="FIGURE 10" captionStartId="16.[151,250,1748,1773]" captionTargetBox="[172,1413,212,1691]" captionTargetId="figure@16.[171,1416,211,1691]" captionTargetPageId="16" captionText="FIGURE 10. Petta investigatoris n. sp. Methyl green stained body and tube of the holotype (AM W.50672):A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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." httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="14" pageNumber="317">Fig. 10A</figureCitation>
).
</paragraph>
<caption id="DF7E6679D421A03A60CEDF92314BF86F" httpUri="https://zenodo.org/record/3242421/files/figure.png" pageId="15" pageNumber="318" startId="15.[151,250,1690,1715]" targetBox="[188,1391,166,1651]" targetPageId="15">
<paragraph id="8BBE36F1D421A03A60CEDF92314BF86F" blockId="15.[151,1437,1690,1967]" pageId="15" pageNumber="318">
<emphasis id="B975EAE3D421A03A60CEDF92321FF973" bold="true" box="[151,276,1690,1715]" pageId="15" pageNumber="318">FIGURE 9.</emphasis>
Line drawings of
<taxonomicName id="4C014D72D421A03A618BDF933192F972" authority="Zhang &amp; Hutchings &amp; Kupriyanova, 2019" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[466,665,1691,1714]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="15" pageNumber="318" phylum="Annelida" rank="species" species="investigatoris" status="sp. nov.">
<emphasis id="B975EAE3D421A03A618BDF933192F972" box="[466,665,1691,1714]" italics="true" pageId="15" pageNumber="318">Petta investigatoris</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2465798D421A03A62F9DF9331D0F973" box="[672,731,1691,1715]" pageId="15" pageNumber="318" rank="species">
<emphasis id="B975EAE3D421A03A62F9DF9331D0F973" bold="true" box="[672,731,1691,1715]" pageId="15" pageNumber="318">n. sp.</emphasis>
</taxonomicNameLabel>
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.
</paragraph>
</caption>
<caption id="DF7E6679D43EA02560CEDFDC30ABF805" httpUri="https://zenodo.org/record/3242423/files/figure.png" pageId="16" pageNumber="319" startId="16.[151,250,1748,1773]" targetBox="[172,1413,212,1691]" targetPageId="16">
<paragraph id="8BBE36F1D43EA02560CEDFDC30ABF805" blockId="16.[151,1436,1748,1989]" pageId="16" pageNumber="319">
<emphasis id="B975EAE3D43EA02560CEDFDC3214F92D" bold="true" box="[151,287,1748,1773]" pageId="16" pageNumber="319">FIGURE 10.</emphasis>
<taxonomicName id="4C014D72D43EA025617DDFDD32E2F92C" authority="Zhang &amp; Hutchings &amp; Kupriyanova, 2019" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[292,489,1749,1772]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="16" pageNumber="319" phylum="Annelida" rank="species" species="investigatoris" status="sp. nov.">
<emphasis id="B975EAE3D43EA025617DDFDD32E2F92C" box="[292,489,1749,1772]" italics="true" pageId="16" pageNumber="319">Petta investigatoris</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2465798D43EA02561B7DFDD312CF92D" box="[494,551,1749,1773]" pageId="16" pageNumber="319" rank="species">
<emphasis id="B975EAE3D43EA02561B7DFDD312CF92D" bold="true" box="[494,551,1749,1773]" pageId="16" pageNumber="319">n. sp.</emphasis>
</taxonomicNameLabel>
Methyl green stained body and tube of the holotype (AM W.50672): A. Tube; B. Ventral view of entire body; C. Dorso-lateral view of entire body; D. Ventral view of anterior end; E. Dorso-lateral view of anterior end; F. Close-up view of left branchiae, in lateral view; G. Dorsal view of posterior end; H. Ventral view of posterior end; I. Lateral view of posterior end, showing lobes on lateral margin of scaphe; J. Scaphal hooks. 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; dlp, dorso-lateral pad; 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.
</paragraph>
</caption>
<caption id="DF7E6679D43FA02460CEDC1937E6FA8E" httpUri="https://zenodo.org/record/3242425/files/figure.png" pageId="17" pageNumber="320" startId="17.[151,250,1297,1322]" targetBox="[170,1418,196,1225]" targetPageId="17">
<paragraph id="8BBE36F1D43FA02460CEDC1937E6FA8E" blockId="17.[151,1436,1297,1359]" pageId="17" pageNumber="320">
<emphasis id="B975EAE3D43FA02460CEDC193214FAEA" bold="true" box="[151,287,1297,1322]" pageId="17" pageNumber="320">FIGURE 11.</emphasis>
Chaetae of
<taxonomicName id="4C014D72D43FA02461C0DC1B3155FAEA" authority="Zhang &amp; Hutchings &amp; Kupriyanova, 2019" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[409,606,1299,1322]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="species" species="investigatoris" status="sp. nov.">
<emphasis id="B975EAE3D43FA02461C0DC1B3155FAEA" box="[409,606,1299,1322]" italics="true" pageId="17" pageNumber="320">Petta investigatoris</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2465798D43FA024623CDC1A3195FAEA" box="[613,670,1298,1322]" pageId="17" pageNumber="320" rank="species">
<emphasis id="B975EAE3D43FA024623CDC1A3195FAEA" bold="true" box="[613,670,1298,1322]" pageId="17" pageNumber="320">n. sp.</emphasis>
</taxonomicNameLabel>
Holotype (AM W.50672) AC. Close-up view of notochaetae, segment 12; B. Tip of notochaeta from posterior row; C. Tips of notochaetae from anterior row; DE. Uncini, segment 12.
</paragraph>
</caption>
<paragraph id="8BBE36F1D43FA024609EDC743202F9C2" blockId="17.[151,1437,1404,1971]" pageId="17" pageNumber="320">
<emphasis id="B975EAE3D43FA024609EDC743246FA57" bold="true" box="[199,333,1404,1431]" pageId="17" pageNumber="320">Variability.</emphasis>
The
<typeStatus id="54BA8853D43FA02461D0DC7532FFFA57" box="[393,500,1405,1431]" pageId="17" pageNumber="320" type="paratype">paratypes</typeStatus>
vary in length from
<quantity id="4CF99B14D43FA02462BDDC7430A8FA57" box="[740,931,1404,1431]" metricMagnitude="-2" metricUnit="m" metricValue="1.815" metricValueMax="2.18" metricValueMin="1.45" pageId="17" pageNumber="320" unit="mm" value="18.15" valueMax="21.8" valueMin="14.5">14.5 to 21.8 mm</quantity>
, including paleae and scaphe, width
<quantity id="4CF99B14D43FA0246511DC7533C8FA7B" metricMagnitude="-3" metricUnit="m" metricValue="2.7" metricValueMax="3.1" metricValueMin="2.3" pageId="17" pageNumber="320" unit="mm" value="2.7" valueMax="3.1" valueMin="2.3">2.33.1 mm</quantity>
at cephalic regions. Paleae 1213 pairs. Scaphal hooks 912 pairs.
<typeStatus id="54BA8853D43FA02463EBDCA93714FA7B" box="[946,1055,1441,1467]" pageId="17" pageNumber="320" type="paratype">Paratypes</typeStatus>
(AM W.50668 and AM W.50669) only with 34 papillae on ventro-lateral of segment 3. Some specimens with deep median notch on dorsal margin of scaphe.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD43FA024609EDF04301BF98A" pageId="17" pageNumber="320" type="distribution">
<paragraph id="8BBE36F1D43FA024609EDF0437D1F9E7" blockId="17.[151,1437,1404,1971]" box="[199,1242,1548,1575]" pageId="17" pageNumber="320">
<emphasis id="B975EAE3D43FA024609EDF04326AF9E7" bold="true" box="[199,353,1548,1575]" pageId="17" pageNumber="320">Distribution.</emphasis>
Jervis CMR to Freycinet CMR along south-eastern coasts of
<collectingCountry id="F3167661D43FA0246448DF043773F9E6" box="[1041,1144,1548,1574]" name="Australia" pageId="17" pageNumber="320">Australia</collectingCountry>
(
<figureCitation id="133A2A74D43FA02464DEDF0437C2F9E7" box="[1159,1225,1548,1575]" 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="17" pageNumber="320">Fig. 1</figureCitation>
).
</paragraph>
<paragraph id="8BBE36F1D43FA024609EDF38301BF98A" blockId="17.[151,1437,1404,1971]" box="[199,784,1584,1611]" pageId="17" pageNumber="320">
<emphasis id="B975EAE3D43FA024609EDF383221F98B" bold="true" box="[199,298,1584,1611]" pageId="17" pageNumber="320">Habitat.</emphasis>
<quantity id="4CF99B14D43FA0246168DF3932C4F98B" box="[305,463,1585,1611]" metricMagnitude="3" metricUnit="m" metricValue="2.5789999999999997" metricValueMax="2.82" metricValueMin="2.338" pageId="17" pageNumber="320" unit="m" value="2579.0" valueMax="2820.0" valueMin="2338.0">23382820 m</quantity>
. No substrate data available.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD43FA024609EDF5D366BF952" pageId="17" pageNumber="320" type="etymology">
<paragraph id="8BBE36F1D43FA024609EDF5D366BF952" blockId="17.[151,1437,1404,1971]" pageId="17" pageNumber="320">
<emphasis id="B975EAE3D43FA024609EDF5D3245F9AF" bold="true" box="[199,334,1621,1647]" pageId="17" pageNumber="320">Etymology.</emphasis>
The species is named “
<taxonomicName id="4C014D72D43FA0246209DF5D31E3F9AE" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[592,744,1621,1646]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="species" species="investigatoris">
<emphasis id="B975EAE3D43FA0246209DF5D31E3F9AE" box="[592,744,1621,1646]" italics="true" pageId="17" pageNumber="320">investigatoris</emphasis>
</taxonomicName>
” after the Australian Marine National Facility R/V “
<taxonomicName id="4C014D72D43FA0246570DF5C33B2F953" family="Nemichthyidae" genus="Investigator" higherTaxonomySource="CoL" kingdom="Animalia" order="Anguilliformes" pageId="17" pageNumber="320" phylum="Chordata" rank="genus">Investigator</taxonomicName>
” because these specimens were collected during the 2017 “Sampling the Abyss” cruise on board this ship.
</paragraph>
</subSubSection>
<subSubSection id="C31B657AD43FA024609EDF953104F873" pageId="17" pageNumber="320" type="discussion">
<paragraph id="8BBE36F1D43FA024609EDF953104F873" blockId="17.[151,1437,1404,1971]" pageId="17" pageNumber="320">
<emphasis id="B975EAE3D43FA024609EDF95323FF977" bold="true" box="[199,308,1693,1719]" pageId="17" pageNumber="320">Remarks</emphasis>
.
<taxonomicName id="4C014D72D43FA024611BDF953117F976" authority="Zhang &amp; Hutchings &amp; Kupriyanova, 2019" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[322,540,1693,1718]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="species" species="investigatoris" status="sp. nov.">
<emphasis id="B975EAE3D43FA024611BDF953117F976" box="[322,540,1693,1718]" italics="true" pageId="17" pageNumber="320">Petta investigatoris</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2465798D43FA024627ADF953169F977" box="[547,610,1693,1719]" pageId="17" pageNumber="320" rank="species">
<emphasis id="B975EAE3D43FA024627ADF953169F977" bold="true" box="[547,610,1693,1719]" pageId="17" pageNumber="320">n. sp.</emphasis>
</taxonomicNameLabel>
can be distinguished from other species of
<taxonomicName id="4C014D72D43FA0246411DF953788F976" authorityName="Malmgren" authorityYear="1866" box="[1096,1155,1693,1718]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="genus">
<emphasis id="B975EAE3D43FA0246411DF953788F976" box="[1096,1155,1693,1718]" italics="true" pageId="17" pageNumber="320">Petta</emphasis>
</taxonomicName>
by the following characters: ventral lappets on segment 1 partly covered by ventral lobes of segment 2; short ventro-lateral lobes on segment 2 separated from each other by a narrow mid-ventral groove, and with 78 triangular lappets per lobe; ventrolateral lobes with continuous rows of papillae on segment 3; straight scaphal hooks (
<tableCitation id="C683034AD43FA024640ADE0037A7F8E3" box="[1107,1196,1800,1827]" 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="17" pageNumber="320" tableUuid="DF7E6679D438A02360CEDB8636B2FD68">Table 2</tableCitation>
).
<taxonomicName id="4C014D72D43FA0246498DE013697F8E2" authority="Zhang &amp; Hutchings &amp; Kupriyanova, 2019" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[1217,1436,1801,1826]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="species" species="investigatoris" status="sp. nov.">
<emphasis id="B975EAE3D43FA0246498DE013697F8E2" box="[1217,1436,1801,1826]" italics="true" pageId="17" pageNumber="320">Petta investigatoris</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2465798D43FA02460CEDE2533DCF887" box="[151,215,1837,1863]" pageId="17" pageNumber="320" rank="species">
<emphasis id="B975EAE3D43FA02460CEDE2533DCF887" bold="true" box="[151,215,1837,1863]" pageId="17" pageNumber="320">n. sp.</emphasis>
</taxonomicNameLabel>
is similar to
<taxonomicName id="4C014D72D43FA0246134DE2532E0F886" authorityName="McIntosh" authorityYear="1885" box="[365,491,1836,1862]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="species" species="assimilis">
<emphasis id="B975EAE3D43FA0246134DE2532E0F886" box="[365,491,1836,1862]" italics="true" pageId="17" pageNumber="320">P. assimilis</emphasis>
</taxonomicName>
as they both share continuous row of papillae on ventro-lateral lobes of segment 3. However,
<taxonomicName id="4C014D72D43FA0246153DE59328DF8AA" authorityName="McIntosh" authorityYear="1885" box="[266,390,1872,1898]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="species" species="assimilis">
<emphasis id="B975EAE3D43FA0246153DE59328DF8AA" box="[266,390,1872,1898]" italics="true" pageId="17" pageNumber="320">P. assimilis</emphasis>
</taxonomicName>
has a scale-like anal flap without anal cirrus and 45 lappets (fimbriae) on ventro-lateral lobes of segment 2, while
<taxonomicName id="4C014D72D43FA02461DADE7D3133F84E" authority="Zhang &amp; Hutchings &amp; Kupriyanova, 2019" authorityName="Zhang &amp; Hutchings &amp; Kupriyanova" authorityYear="2019" box="[387,568,1909,1934]" class="Polychaeta" family="Pectinariidae" genus="Petta" kingdom="Animalia" order="Terebellida" pageId="17" pageNumber="320" phylum="Annelida" rank="species" species="investigatoris" status="sp. nov.">
<emphasis id="B975EAE3D43FA02461DADE7D3133F84E" box="[387,568,1909,1934]" italics="true" pageId="17" pageNumber="320">P. investigatoris</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A2465798D43FA024621BDE7D3189F84F" box="[578,642,1909,1935]" pageId="17" pageNumber="320" rank="species">
<emphasis id="B975EAE3D43FA024621BDE7D3189F84F" bold="true" box="[578,642,1909,1935]" pageId="17" pageNumber="320">n. sp.</emphasis>
</taxonomicNameLabel>
has a vestigial anal flap with long anal cirrus and 78 lappets on the ventro-lateral lobes of segment 2.
</paragraph>
</subSubSection>
</treatment>
</document>