<documentid="47E3766A792E9300913084CB2F16BE8F"ID-DOI="10.11646/zootaxa.5151.1.1"ID-ISSN="1175-5326"ID-Zenodo-Dep="6630734"ID-ZooBank="135CC8D7-CAFA-4B23-9006-AB8613E982A0"IM.materialsCitations_approvedBy="felipe"IM.metadata_approvedBy="felipe"IM.tables_requiresApprovalFor="existingObjects,plazi"IM.taxonomicNames_approvedBy="admin"checkinTime="1654851803525"checkinUser="plazi"docAuthor="Zhang, Jinghuai, Hutchings, Pat & Qiu, Jian-Wen"docDate="2022"docId="039E87CFFFC0FFC7C39AFCFABD71FE99"docLanguage="en"docName="zootaxa.5151.1.1.pdf"docOrigin="Zootaxa 5151 (1)"docSource="http://zoobank.org/135cc8d7-cafa-4b23-9006-ab8613e982a0"docStyle="DocumentStyle:5EBBA59367AD13919D70D935FA04F6A3.14:Zootaxa.2013-.monograph"docStyleId="5EBBA59367AD13919D70D935FA04F6A3"docStyleName="Zootaxa.2013-.monograph"docStyleVersion="14"docTitle="Pectinaria xiukaii Zhang & Hutchings & Qiu 2022, n. sp."docType="treatment"docVersion="4"lastPageNumber="55"masterDocId="FFA7FFB7FFF1FFF0C30DFFE5B800FFD8"masterDocTitle="Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records"masterLastPageNumber="74"masterPageNumber="1"pageNumber="50"updateTime="1720319756036"updateUser="admin">
<mods:titleid="0D6CCFA676388524D8F13DAA0D7558BD">Pectinariidae (Annelida, Polychaeta) from the coastal waters of China, with description of new species and new records</mods:title>
<taxonomicNameid="4C374D5AFFC0FFC1C39AFCFAB971FCE1"ID-CoL="9CBGQ"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[151,369,798,825]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="49"pageNumber="50"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<figureCitationid="130C2A5CFFC0FFC1C39AFCA6B8EDFC85"box="[151,237,835,861]"captionStart="FIGURE 17"captionStartId="33.[151,250,1409,1433]"captionTargetBox="[156,1431,453,1381]"captionTargetId="figure-132@33.[156,1431,453,1385]"captionTargetPageId="33"captionText="FIGURE 17. Map illustrating the distribution of Pectinaria torquata Zhang & Qiu, 2017, P. dayaensis n. sp., P. lizhei n. sp. and P. xiukaii n. sp. in the coastal waters of China"figureDoi="http://doi.org/10.5281/zenodo.6630780"httpUri="https://zenodo.org/record/6630780/files/figure.png"pageId="49"pageNumber="50">Figs 17</figureCitation>
;
<figureCitationid="130C2A5CFFC0FFC1C3F4FCA6B943FC85"box="[249,323,835,861]"captionStart-0="FIGURE 31"captionStart-1="FIGURE 32"captionStart-2="FIGURE 33"captionStart-3="FIGURE 34"captionStartId-0="50.[151,250,1836,1860]"captionStartId-1="51.[151,250,1825,1849]"captionStartId-2="52.[151,250,1831,1855]"captionStartId-3="53.[151,250,1816,1840]"captionTargetBox-0="[227,1360,181,1812]"captionTargetBox-1="[151,1432,181,1802]"captionTargetBox-2="[175,1413,181,1807]"captionTargetBox-3="[151,1436,273,1793]"captionTargetId-0="figure-21@50.[227,1360,181,1812]"captionTargetId-1="figure-18@51.[151,1436,181,1802]"captionTargetId-2="figure-21@52.[175,1413,181,1807]"captionTargetId-3="figure-50@53.[151,1436,273,1793]"captionTargetPageId-0="50"captionTargetPageId-1="51"captionTargetPageId-2="52"captionTargetPageId-3="53"captionText-0="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."captionText-1="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."captionText-2="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."captionText-3="FIGURE 34. Pectinaria xiukaii n. sp. chaetae of Paratype (TIO908WINST01BDH066), under the SEM: A. Parapodium on segment 8; B. Parapodium on segment 20; C–D. Close ups of notochaetae on segment 8; E. Notochaetae on segment 20; F. Dorso-median uncini of neuropodia on segment 8; G. Median uncini of neuropodia on segment 8; H. Ventral uncini of neuropodia on segment 8; I. Dorsal uncini of neuropodia on segment 20; J. Median uncini of neuropodia on segment 20; K. Ventro-median uncini of neuropodia on segment 20."figureDoi-0="http://doi.org/10.5281/zenodo.6630812"figureDoi-1="http://doi.org/10.5281/zenodo.6630814"figureDoi-2="http://doi.org/10.5281/zenodo.6630816"figureDoi-3="http://doi.org/10.5281/zenodo.6630818"httpUri-0="https://zenodo.org/record/6630812/files/figure.png"httpUri-1="https://zenodo.org/record/6630814/files/figure.png"httpUri-2="https://zenodo.org/record/6630816/files/figure.png"httpUri-3="https://zenodo.org/record/6630818/files/figure.png"pageId="49"pageNumber="50">31–34</figureCitation>
<materialsCitationid="3B5F3C84FFC0FFC1C299FC6EBCDCFC11"collectingDate="2018-09"collectorName="J. He & Y. Wang"county="Shangdong Province"elevation="28"latitude="38.26539"location="Chang Island"longLatPrecision="1"longitude="120.647995"municipality="Bohai Sea"pageId="49"pageNumber="50"specimenCount="1"typeStatus="holotype">
<materialsCitationid="3B5F3C84FFC0FFC1C7E5FC4ABB5DFBC9"collectingDate="2018-09"collectionCode="SC-"collectorName="J. He & Y. Wang"county="Bo Sea"elevation="28"latitude="38.26539"location="Chang Island"longLatPrecision="1"longitude="120.647995"municipality="Province"pageId="49"pageNumber="50"specimenCode="SMBC030930, 2"specimenCount="1"typeStatus="paratype">
<materialsCitationid="3B5F3C84FFC0FFC1C2E8F99ABD38F965"collectingDate="2006-08"collectionCode="SUMST"collectorName="Ocean University & Dongfanghong"country="China"elevation="32"latitude="36.99989"location="Yellow Sea"longLatPrecision="1"longitude="122.74258"pageId="49"pageNumber="50"specimenCode="SUMST02"specimenCount="1"typeStatus="paratype">
Preserved specimen pale or reddish in colour, conical in shape (
<figureCitationid="130C2A5CFFC0FFC1C72FF922BCAEF939"box="[1058,1198,1735,1761]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="49"pageNumber="50">Figs 31A–C</figureCitation>
;
<figureCitationid="130C2A5CFFC0FFC1C7B4F922BD0EF939"box="[1209,1294,1735,1761]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="49"pageNumber="50">32A–B</figureCitation>
;
<figureCitationid="130C2A5CFFC0FFC1C614F922BD4DF939"box="[1305,1357,1735,1761]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="49"pageNumber="50">33A</figureCitation>
<figureCitationid="130C2A5CFFC0FFC1C392F8B2B929F8A9"box="[159,297,1879,1905]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="49"pageNumber="50">Figs 31F–G</figureCitation>
;
<figureCitationid="130C2A5CFFC0FFC1C23BF8B2B969F8A9"box="[310,361,1879,1905]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="49"pageNumber="50">32A</figureCitation>
;
<figureCitationid="130C2A5CFFC0FFC1C278F8B2B9A8F8A9"box="[373,424,1879,1905]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="49"pageNumber="50">33C</figureCitation>
). Pair of ear-shaped lobes adjacent to both sides of dorsal base of cephalic veil (
<figureCitationid="130C2A5CFFC0FFC1C63CF8B2BD8FF8A9"box="[1329,1423,1879,1905]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="49"pageNumber="50">Fig. 33I</figureCitation>
). Buccal tentacles broad and short, with long mid-groove, arising from posterior to cephalic veil, extending to margin of cephalic veil (
<figureCitationid="130C2A5CFFC0FFC1C25EF87AB9DCF861"box="[339,476,1951,1977]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="49"pageNumber="50">Figs 31F–G</figureCitation>
;
<figureCitationid="130C2A5CFFC0FFC1C2E5F87ABA1CF861"box="[488,540,1951,1977]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="49"pageNumber="50">32A</figureCitation>
;
<figureCitationid="130C2A5CFFC0FFC1C12AF87ABA59F861"box="[551,601,1951,1977]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="49"pageNumber="50">33C</figureCitation>
<taxonomicNameid="4C374D5AFFC3FFC2C225F8C8B9DFF89C"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[296,479,1836,1860]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="50"pageNumber="51"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC2FFC3C22AF8C7B9DDF8E2"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[295,477,1826,1850]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="51"pageNumber="52"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC5FFC4C22BF8CDB9DCF8E7"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[294,476,1831,1855]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="52"pageNumber="53"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
13 pairs), curved dorsally, acute with extended tips (
<figureCitationid="130C2A5CFFC4FFC5C600FF5EBD98FF0D"box="[1293,1432,187,213]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="53"pageNumber="54">Figs 31E–F</figureCitation>
;
<figureCitationid="130C2A5CFFC4FFC5C39AFF3AB8ECFF21"box="[151,236,223,249]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="53"pageNumber="54">32A–B</figureCitation>
;
<figureCitationid="130C2A5CFFC4FFC5C3FAFF3AB94BFF21"box="[247,331,223,249]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="53"pageNumber="54">33B–C</figureCitation>
<taxonomicNameid="4C374D5AFFC4FFC5C225F8FCB9E0F8E9"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[296,480,1817,1841]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="53"pageNumber="54"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
First pair of tentacular cirri extending beyond paleae, with annuli, arising from connection of opercular margin and paleal ridge (
<figureCitationid="130C2A5CFFC7FFC6C26CFF5EB9EFFF0D"box="[353,495,187,213]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31E–G</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C2F0FF5EBA51FF0D"box="[509,593,187,213]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33B–C</figureCitation>
). Pair of small ventral-lateral lappets present behind tentacular cirri, near cephalic veil, on segment 1 (
<figureCitationid="130C2A5CFFC7FFC6C2DBFF3ABA38FF21"box="[470,568,223,249]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Fig. 31F</figureCitation>
). Ventral region of segment 1 covered by buccal tentacles and ventral lobes of segment 2 (
<figureCitationid="130C2A5CFFC7FFC6C215FEE6B980FEC5"box="[280,384,259,285]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31F</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C286FEE6B9C0FEC5"box="[395,448,259,285]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32A</figureCitation>
<figureCitationid="130C2A5CFFC7FFC6C667FEAEB8CBFE51"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31G</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C3D5FE8AB90BFE51"box="[216,267,367,393]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33B</figureCitation>
). Pair of broad smooth ventro-lateral lobes on segment 2, separated by deep mid-groove; each ventrolateral lobe with two continuous small lobes close to tentacular cirrus. Dorsal lobe absent on segment 2 (
<figureCitationid="130C2A5CFFC7FFC6C623FE76BD98FE75"box="[1326,1432,403,429]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31E</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C39AFE52B8C9FE09"box="[151,201,439,465]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32B</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C3D8FE52B907FE09"box="[213,263,439,465]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33B</figureCitation>
Comb-like branchiae on segments 3–4, consisting of series of dense, flat lamellae. Branchiae on segment 3 larger and inserted more ventrally than those of segment 4 (
<figureCitationid="130C2A5CFFC7FFC6C03EFE1ABBBEFDC1"box="[819,958,511,537]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31E–G</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C0C7FE1ABBFDFDC1"box="[970,1021,511,537]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33B</figureCitation>
). Pair of dorso-lateral glandular pads present adjacent to branchiae on segments 3 and 4, dorso-lateral glandular pads on segment 3 larger (
<figureCitationid="130C2A5CFFC7FFC6C606FDC6BD97FDE5"box="[1291,1431,547,573]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31E, G</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C39AFDA2B8C9FDB9"box="[151,201,583,609]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32B</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C3D8FDA2B907FDB9"box="[213,263,583,609]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33B</figureCitation>
Distinct ventral glandular lobes present on segments 3–6, becoming progressively more lateral and broader on segments 3–5 (
<figureCitationid="130C2A5CFFC7FFC6C26EFD6AB9EDFD71"box="[355,493,655,681]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31F–G</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C2F7FD6ABA4EFD71"box="[506,590,655,681]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32A, C</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C157FD6ABA8CFD71"box="[602,652,655,681]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33C</figureCitation>
). Segment 3 with broad ventral lobe with shallow median indentation about 1/7 width of ventral lobe. Segment 4 with pair of ventro-lateral lobes and a mid-ventral lobe, separated from these by shallow groove; each ventro-lateral lobe with a large lateral hump adjacent to branchia and a relatively small and acute hump off mid-ventral lobe; mid-ventral lobe narrow about 1/2 width of ventro-lateral lobe, short rectangular, with pair of papillae adjacent to corner (
<figureCitationid="130C2A5CFFC7FFC6C1D4FCFABB39FCE1"box="[729,825,799,825]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31J</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C049FCFABB99FCE1"box="[836,921,799,825]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32C–D</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C0AEFCFABBF1FCE1"box="[931,1009,799,825]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33C, F</figureCitation>
). Segment 5 with pair of ventro-lateral lobes and mid-ventral lobe about 1/4 width of ventro-lateral lobes, separated from them by shallow grooves. Segment 6 with pair of ventro-lateral lobes, separated by mid shallow groove.
Notopodia other than those of segment 1 which bear paleae, on segments 5–20 (16 pairs), each bearing two kinds of notochaetae; one winged from anterior row, bordered with serrations along distal portion, short, covered progressively with more spines from about middle to front of wing, on anterior surface; others stout, long and straight, tapering to an acute tip, covered progressively with more spines from mid-anterior portion to tip, on anterior surface (
<figureCitationid="130C2A5CFFC7FFC6C22AFBFEB9B0FBED"box="[295,432,1051,1077]"captionStart="FIGURE 34"captionStartId="53.[151,250,1816,1840]"captionTargetBox="[151,1436,273,1793]"captionTargetId="figure-50@53.[151,1436,273,1793]"captionTargetPageId="53"captionText="FIGURE 34. Pectinaria xiukaii n. sp. chaetae of Paratype (TIO908WINST01BDH066), under the SEM: A. Parapodium on segment 8; B. Parapodium on segment 20; C–D. Close ups of notochaetae on segment 8; E. Notochaetae on segment 20; F. Dorso-median uncini of neuropodia on segment 8; G. Median uncini of neuropodia on segment 8; H. Ventral uncini of neuropodia on segment 8; I. Dorsal uncini of neuropodia on segment 20; J. Median uncini of neuropodia on segment 20; K. Ventro-median uncini of neuropodia on segment 20."figureDoi="http://doi.org/10.5281/zenodo.6630818"httpUri="https://zenodo.org/record/6630818/files/figure.png"pageId="54"pageNumber="55">Fig. 34A–E</figureCitation>
). Neuropodia, 13 pairs on segments 8–20, each with raised torus with a transverse row of uncini; each uncinus with U-shaped anterior peg embedded into torus, several rows of minor teeth, 3–4 longitudinal rows of major teeth, each with about seven teeth (
<figureCitationid="130C2A5CFFC7FFC6C1C2FB86BB9CFBA5"box="[719,924,1123,1149]"captionStart="FIGURE 34"captionStartId="53.[151,250,1816,1840]"captionTargetBox="[151,1436,273,1793]"captionTargetId="figure-50@53.[151,1436,273,1793]"captionTargetPageId="53"captionText="FIGURE 34. Pectinaria xiukaii n. sp. chaetae of Paratype (TIO908WINST01BDH066), under the SEM: A. Parapodium on segment 8; B. Parapodium on segment 20; C–D. Close ups of notochaetae on segment 8; E. Notochaetae on segment 20; F. Dorso-median uncini of neuropodia on segment 8; G. Median uncini of neuropodia on segment 8; H. Ventral uncini of neuropodia on segment 8; I. Dorsal uncini of neuropodia on segment 20; J. Median uncini of neuropodia on segment 20; K. Ventro-median uncini of neuropodia on segment 20."figureDoi="http://doi.org/10.5281/zenodo.6630818"httpUri="https://zenodo.org/record/6630818/files/figure.png"pageId="54"pageNumber="55">Fig. 34A–B, F–K</figureCitation>
). Segment 21 with pair of broad lateral lobes without chaetae, each lateral lobe with a transverse row of continuous numerous lappets, size of lappets decreases from ventrum to dorsum (
<figureCitationid="130C2A5CFFC7FFC6C2B4FB4EBA5BFB1D"box="[441,603,1195,1221]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31H–I, L</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C16AFB4EBAB8FB1D"box="[615,696,1195,1221]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32F–G</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C1CEFB4EBAF5FB1D"box="[707,757,1195,1221]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33E</figureCitation>
Scaphe wide ovoidal, flattened dorsally; with five pairs of lobes on lateral-posterior margin including four pairs of anterior narrow lobes with triangular tip and last pair with rounded lobes with continuous cirri on lateral-posterior margins, first cirrus on lateral margin of last lobes larger than the following ones (
<figureCitationid="130C2A5CFFC7FFC6C735FAF2BCDCFAE9"box="[1080,1244,1303,1329]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31H–I, L</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C7E4FAF2BD3AFAE9"box="[1257,1338,1303,1329]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32F–H</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C64BFAF2B8E9FA8D"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33D–E, G–H, J</figureCitation>
). Anal flap long tongue-shaped, with numerous cirri on lateral-posterior margin, with long, thin mid-dorsal anal cirrus (
<figureCitationid="130C2A5CFFC7FFC6C22CFABAB991FAA1"box="[289,401,1375,1401]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31K</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C292FABAB9D3FAA1"box="[415,467,1375,1401]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32H</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C2ECFABABA0CFAA1"box="[481,524,1375,1401]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33J</figureCitation>
6 pairs), amber, hooked, distinctly curved dorsally, with acute tips, arranged in almost perpendicular row to dorsal margin of scaphe (
<figureCitationid="130C2A5CFFC7FFC6C79EFA66BD14FA45"box="[1171,1300,1411,1437]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Figs 31I, L</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C62DFA66BD50FA45"box="[1312,1360,1411,1437]"captionStart="FIGURE 32"captionStartId="51.[151,250,1825,1849]"captionTargetBox="[151,1432,181,1802]"captionTargetId="figure-18@51.[151,1436,181,1802]"captionTargetPageId="51"captionText="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi="http://doi.org/10.5281/zenodo.6630814"httpUri="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">32E</figureCitation>
;
<figureCitationid="130C2A5CFFC7FFC6C651FA66BD90FA45"box="[1372,1424,1411,1437]"captionStart="FIGURE 33"captionStartId="52.[151,250,1831,1855]"captionTargetBox="[175,1413,181,1807]"captionTargetId="figure-21@52.[175,1413,181,1807]"captionTargetPageId="52"captionText="FIGURE 33. Pectinaria xiukaii n. sp. Paratype (TIO908WINST01BDH066), under the SEM: A. Lateral view of entire body; B. Dorso-lateral view of anterior end; C. Ventral view of anterior end; D. Dorso-lateral view of scaphe; E. Lateral view of posterior end; F. Ventral view of segment 4; G–H. Close up of last pair of lobes on lateral and posterior margins of scaphe; I. Close up of right region between cephalic veil and segment 1; J. Posterior view of scaphe; K. Scaphal hooks. Abbreviations: ac, anal cirrus; af, anal flap; an. anus; 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; sh, scaphal hooks; tc, tentacular cirri."figureDoi="http://doi.org/10.5281/zenodo.6630816"httpUri="https://zenodo.org/record/6630816/files/figure.png"pageId="54"pageNumber="55">33K</figureCitation>
). Dorsal margin between rows of scaphal hooks smooth, arched dorsally.
Tube ice-cream shape, consisted by sand, shell and sediment fragments held together by cement (
<figureCitationid="130C2A5CFFC7FFC6C604FA2EBD71FA3D"box="[1289,1393,1483,1509]"captionStart="FIGURE 31"captionStartId="50.[151,250,1836,1860]"captionTargetBox="[227,1360,181,1812]"captionTargetId="figure-21@50.[227,1360,181,1812]"captionTargetPageId="50"captionText="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."figureDoi="http://doi.org/10.5281/zenodo.6630812"httpUri="https://zenodo.org/record/6630812/files/figure.png"pageId="54"pageNumber="55">Fig. 31D</figureCitation>
pair of tentacular cirri, dorso-lateral pads of segments 3–4, ventral region of some neuropodia, regions between segment 20 and scaphe, ventral regions of scaphe, and dorsum of anal flap (
<figureCitationid="130C2A5CFFC7FFC6C06DF9D2BBE3F989"box="[864,995,1591,1617]"captionStart-0="FIGURE 31"captionStart-1="FIGURE 32"captionStartId-0="50.[151,250,1836,1860]"captionStartId-1="51.[151,250,1825,1849]"captionTargetBox-0="[227,1360,181,1812]"captionTargetBox-1="[151,1432,181,1802]"captionTargetId-0="figure-21@50.[227,1360,181,1812]"captionTargetId-1="figure-18@51.[151,1436,181,1802]"captionTargetPageId-0="50"captionTargetPageId-1="51"captionText-0="FIGURE 31. Pectinaria xiukaii n. sp. Methyl Green stained body of Holotype (SCSMBC030929): A. Lateral view of entire body; B. Ventral view of entire body; C. Dorsal view of entire body; D. Tube; E. Dorso-lateral view of anterior end; F. Ventral view of anterior end; G. Lateral view of anterior end; H. Dorsal view of posterior end; I. Dorso-lateral view of posterior end; J. Ventral view of segments 3–4; K. Anal flap; L. Lateral view of posterior end. Abbreviations: ac, anal cirrus; af, anal flap; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks; tc, tentacular cirri; vl, ventral lappet."captionText-1="FIGURE 32. Pectinaria xiukaii n. sp. Methyl Green stained body of Paratype (TIO908SUMST01BH018): A. Ventral view of entire body; B. Dorso-lateral view of entire body; C. Ventral view of segments 2–6; D. Close up of mid-ventral lobe on segment 4; E. Scaphal hooks; F. Dorsal view of posterior end; G. Lateral view of posterior end; H. Dorsal view of anal flap. Abbreviations: ac, anal cirrus; af, anal flap; an, anus; br, branchiae; bt, buccal tentacles; dlp, dorso-lateral pad; lh, lateral hump; nep, neuropodium; op, operculum; or, opercular rim; p, paleae; s, segment; sc, scaphe; sh, scaphal hooks."figureDoi-0="http://doi.org/10.5281/zenodo.6630812"figureDoi-1="http://doi.org/10.5281/zenodo.6630814"httpUri-0="https://zenodo.org/record/6630812/files/figure.png"httpUri-1="https://zenodo.org/record/6630814/files/figure.png"pageId="54"pageNumber="55">Figs 31–32</figureCitation>
<figureCitationid="130C2A5CFFC7FFC6C1EDF9BEBB33F9AD"box="[736,819,1627,1653]"captionStart="FIGURE 17"captionStartId="33.[151,250,1409,1433]"captionTargetBox="[156,1431,453,1381]"captionTargetId="figure-132@33.[156,1431,453,1385]"captionTargetPageId="33"captionText="FIGURE 17. Map illustrating the distribution of Pectinaria torquata Zhang & Qiu, 2017, P. dayaensis n. sp., P. lizhei n. sp. and P. xiukaii n. sp. in the coastal waters of China"figureDoi="http://doi.org/10.5281/zenodo.6630780"httpUri="https://zenodo.org/record/6630780/files/figure.png"pageId="54"pageNumber="55">Fig. 17</figureCitation>
<taxonomicNameid="4C374D5AFFC7FFC6C2F2F90EBAC7F8DD"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[511,711,1771,1797]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="54"pageNumber="55"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
can be identified by the following characters: cephalic veil free from operculum, dorsal and lateral margins of semicircular operculum smooth, branchiae present on segments 3–4, mid-ventral lobe of segment 4 narrow about 1/2 width of ventro-lateral lobe and with a pair of papillae adjacent to corner, capillary notochaetae on segments 5–20, neurochaetae (uncini) on segments 8–20, more than one longitudinal row of major teeth on uncinus. The new species can be easily distinguished from
<taxonomicNameid="4C374D5AFFC7FFC6C770F89EB8CFF861"authority="Zhang & Qiu, 2017"authorityName="Zhang & Qiu"authorityYear="2017"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="54"pageNumber="55"phylum="Annelida"rank="species"species="torquata">
<bibRefCitationid="EFA64B28FFC7FFC6C60DF89EB8CFF861"author="Zhang, J. & Qiu, J. - W."pageId="54"pageNumber="55"pagination="139 - 150"refId="ref45934"refString="Zhang, J. & Qiu, J. - W. (2017) A new species of Pectinaria (Annelida, Pectinariidae), with a key to pectinariids from the South China Sea. ZooKeys, 683, 139 - 150. https: // doi. org / 10.3897 / zookeys. 683.12272"type="journal article"year="2017">Zhang & Qiu, 2017</bibRefCitation>
<taxonomicNameid="4C374D5AFFC7FFC6C3FBF87AB95FF861"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[246,351,1951,1977]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="54"pageNumber="55"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC7FFC6C09FF87ABC0DF860"authorityName="Zhang & Qiu"authorityYear="2017"box="[914,1037,1951,1976]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="54"pageNumber="55"phylum="Annelida"rank="species"species="torquata">
<taxonomicNameid="4C374D5AFFC7FFC6C237F826BA03F805"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[314,515,1987,2013]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="54"pageNumber="55"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<bibRefCitationid="EFA64B28FFC7FFC6C06EF826BC19F805"author="Schmarda, L. K."box="[867,1049,1987,2013]"pageId="54"pageNumber="55"refId="ref45305"refString="Schmarda, L. K. (1861) Neue Turbellarian, Rotatorien und Anneliden Beobachtet und Gesammelt auf einer Reise um die Erde 1853 bis 1857. Wilhelm Engelmann, Leipzig, 164 pp. [http: // www. biodiversitylibrary. org / ia / neuewirbelloseth 21861 schm]"type="book"year="1861">Schmarda, 1861</bibRefCitation>
<taxonomicNameid="4C374D5AFFC6FFC7C39AFF72B8FEFF69"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[151,254,151,177]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC6FFC7C262FF5EBA38FF0D"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[367,568,187,213]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC6FFC7C01DFF5EBB99FF0D"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[784,921,187,213]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="dayaensis"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC6FFC7C71BFF5EBC6EFF0D"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[1046,1134,187,213]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="lizhei"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC6FFC7C1DDFF3ABB59FF21"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[720,857,223,249]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="dayaensis"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC6FFC7C0D9FF3ABC2CFF21"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[980,1068,223,249]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="lizhei"status="sp. nov.">
<taxonomicNameid="4C374D5AFFC6FFC7C247FEE6B9B1FEC5"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[330,433,259,285]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
<figureCitationid="130C2A5CFFC6FFC7C0BDFEE6BC03FEC5"box="[944,1027,258,285]"captionStart="FIGURE 35"captionStartId="55.[151,250,1543,1567]"captionTargetBox="[174,1416,354,1516]"captionTargetId="figure-125@55.[164,1423,345,1520]"captionTargetPageId="55"captionText="FIGURE 35. Relationship between body width and body length, number of cirri on cephalic veil, number of pairs of paleae, and number of pairs of scaphal hooks, for Pectinaria xiukaii n. sp."figureDoi="http://doi.org/10.5281/zenodo.6630820"httpUri="https://zenodo.org/record/6630820/files/figure.png"pageId="55"pageNumber="56">Fig. 35</figureCitation>
). The number of pairs of paleae, and pairs of scaphal hooks of
<taxonomicNameid="4C374D5AFFC6FFC7C2BBFEC2BA7FFE99"authority="Zhang & Hutchings & Qiu, 2022"authorityName="Zhang & Hutchings & Qiu"authorityYear="2022"box="[438,639,295,321]"class="Polychaeta"family="Pectinariidae"genus="Pectinaria"kingdom="Animalia"order="Terebellida"pageId="55"pageNumber="56"phylum="Annelida"rank="species"species="xiukaii"status="sp. nov.">
also increases with body size, but not significantly (
<figureCitationid="130C2A5CFFC6FFC7C61DFEC2BD64FE99"box="[1296,1380,294,321]"captionStart="FIGURE 35"captionStartId="55.[151,250,1543,1567]"captionTargetBox="[174,1416,354,1516]"captionTargetId="figure-125@55.[164,1423,345,1520]"captionTargetPageId="55"captionText="FIGURE 35. Relationship between body width and body length, number of cirri on cephalic veil, number of pairs of paleae, and number of pairs of scaphal hooks, for Pectinaria xiukaii n. sp."figureDoi="http://doi.org/10.5281/zenodo.6630820"httpUri="https://zenodo.org/record/6630820/files/figure.png"pageId="55"pageNumber="56">Fig. 35</figureCitation>