<documentid="8CD828EFB0508CEF1F8A79C07B2D3037"ID-DOI="10.5852/ejt.2022.810.1723"ID-GBIF-Dataset="58fbfe9f-852b-493c-9611-822354c5a2a8"ID-ISSN="2118-9773"ID-Zenodo-Dep="6419522"ID-ZooBank="67E0CCF7-F768-4C5F-9F02-55EBFFADD3D5"IM.materialsCitations_approvedBy="juliana"IM.metadata_approvedBy="valdenar"IM.tables_approvedBy="juliana"IM.taxonomicNames_approvedBy="juliana"IM.treatmentCitations_approvedBy="juliana"IM.treatments_approvedBy="juliana"checkinTime="1649274388541"checkinUser="felipe"docAuthor="Nethupul, Hasitha, Stöhr, Sabine & Zhang, Haibin"docDate="2022"docId="487387A89B01FF846A542CED53DAC11B"docLanguage="en"docName="ejt-810_1-95.pdf"docOrigin="European Journal of Taxonomy 810 (1)"docSource="http://zoobank.org/67e0ccf7-f768-4c5f-9f02-55ebffadd3d5"docStyle="DocumentStyle:EF2B578F1D15862ADE45B0C07C620911.14:EJT.2018-.journal_article.type1"docStyleId="EF2B578F1D15862ADE45B0C07C620911"docStyleName="EJT.2018-.journal_article.type1"docStyleVersion="14"docTitle="Ophiomoeris petalis Nethupul & Stöhr & Zhang 2022, sp. nov."docType="treatment"docUuid="656A30A3-A81A-4A87-9C19-4007F194788A"docUuidSource="ZooBank"docVersion="2"lastPageNumber="64"masterDocId="B44AFFD09B3DFFBB68242A075772C751"masterDocTitle="New species, redescriptions and new records of deep-sea brittle stars (Echinodermata: Ophiuroidea) from the South China Sea, an integrated morphological and molecular approach"masterLastPageNumber="95"masterPageNumber="1"pageNumber="61"updateTime="1733333422880"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-4.0"zenodo-license-figures="CC-BY-4.0"zenodo-license-treatments="UNSPECIFIED">
<mods:titleid="CFA134DFCD83EC2D061BB2CD2823F7A4">New species, redescriptions and new records of deep-sea brittle stars (Echinodermata: Ophiuroidea) from the South China Sea, an integrated morphological and molecular approach</mods:title>
<mods:affiliationid="26A161190AA4ED8E52E85D83D47FCA26">Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, CAS, 57200 Sanya, China. & University of Chinese Academy of Sciences, Beijing 100039, China.</mods:affiliation>
<mods:affiliationid="52B75B6B9D36FE7DFC166D203D7A780B">Swedish Museum of Natural History, Department of Zoology, Box 50007, 10405 Stockholm, Sweden.</mods:affiliation>
<mods:affiliationid="E6BC0E6CEA63BAD23D7CFC91F5BFA544">Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, CAS, 57200 Sanya, China.</mods:affiliation>
<taxonomicNameid="07DA4D3D9B01FF876A542CED5410C054"ID-CoL="8ZDNP"authority="Nethupul & Stöhr & Zhang, 2022"authorityName="Nethupul & Stöhr & Zhang"authorityYear="2022"box="[624,866,1770,1797]"class="Ophiuroidea"family="Ophiacanthidae"genus="Ophiomoeris"kingdom="Animalia"order="Ophiacanthida"pageId="60"pageNumber="61"phylum="Echinodermata"rank="species"species="petalis"status="sp. nov.">
<paragraphid="C06536BE9B01FF8768992DA6525DC08F"blockId="60.[189,1398,1953,2014]"pageId="60"pageNumber="61">Disc with deep interradial incisions with seven lobes and ring of irregular scales bearing a few granules around centrodorsal plate and overlapping with radial shields. Seven thin arms curled under disc.</paragraph>
<paragraphid="C06536BE9B00FF8668992B305226C600"blockId="61.[189,1364,311,338]"box="[189,1364,311,338]"pageId="61"pageNumber="62">The specific name is derived from the Latin word for flower petals, alluding to the shape of the disc.</paragraph>
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<locationid="C50560659B00FF86691F2BCD557EC6B5"LSID="urn:lsid:plazi:treatment:487387A89B01FF846A542CED53DAC11B:C50560659B00FF86691F2BCD557EC6B5"box="[315,524,458,484]"country="China"latitude="13.9775"longLatPrecision="13"longitude="114.868164"name="South China Sea"pageId="61"pageNumber="62">South China Sea</location>
<locationDeviationid="D1D72F9C9B00FF866A392BCD5435C6B5"box="[541,839,458,484]"location="Zhongsha Islands"pageId="61"pageNumber="62">SE of Zhongsha Islands</locationDeviation>
<collectionCodeid="A6CBAE7B9B00FF866985281656BCC57A"box="[417,462,529,555]"country="0"name="Museum of the Earth, Polish Academy of Sciences"pageId="61"pageNumber="62">MZ</collectionCode>
<taxonomicNameid="07DA4D3D9B00FF86690D2D46556EC00A"authority="Nethupul & Stöhr & Zhang, 2022"authorityName="Nethupul & Stöhr & Zhang"authorityYear="2022"box="[297,540,1857,1883]"class="Ophiuroidea"family="Ophiacanthidae"genus="Ophiomoeris"kingdom="Animalia"order="Ophiacanthida"pageId="61"pageNumber="62"phylum="Echinodermata"rank="species"species="petalis"status="sp. nov.">
<materialsCitationid="70B23CE39B03FF8568992B2B526CC617"ID-GBIF-Occurrence="3753631309"accessionNumber="MZ203278"box="[189,1310,299,326]"collectingDate="2020-09-25"collectionCode="IDSSE"collectorName="Shenhaiyongshi & GenBank"country="China"elevation="1550"latitude="13.9775"location="South China Sea"longLatPrecision="13"longitude="114.868164"pageId="62"pageNumber="63"specimenCode="EEB-SW0058, EEB-SW0062"specimenCount="1"typeStatus="paratype">
DiSC. Disc heptamerous with deep interradial incisions and a lobe above each arm, four large lobes, three smallest lobes and one intermediate lobe (signs of regeneration after fission). Arms differ in width in groups of 3, 3, 1 arms. Lobes formed by large drop-shaped radial shields, largest one a third of disc diameter in length and two to three times as long as wide (
<figureCitationid="58E12A3B9B03FF856BE02851532AC521"box="[964,1112,598,624]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34A–C</figureCitation>
). Radial shields distally connected, separated proximally by large triangular scales, covered by small conical granules (
<figureCitationid="58E12A3B9B03FF856D25287E5218C5C2"box="[1281,1386,633,659]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34E</figureCitation>
of disc sunken and covered by large, round centrodorsal plate without granules (
<figureCitationid="58E12A3B9B03FF856CF1289B5215C5E7"box="[1237,1383,668,694]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34A, C</figureCitation>
). Ring of irregular plates bearing a few conical granules around centrodorsal plate and overlapping with radial shields (
<figureCitationid="58E12A3B9B03FF85694F28E4568EC5AC"box="[363,508,739,765]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34A, C</figureCitation>
). Genital slits small, half as long as interradial ventral disc (
<figureCitationid="58E12A3B9B03FF856CE028E4525CC5AC"box="[1220,1326,739,765]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34F</figureCitation>
). Oral shields swollen, much smaller than adoral shields, as wide as long, fan-shaped with pointed proximal angle, slightly concave lateral edges and convex distal edge; size varies among radials (
<figureCitationid="58E12A3B9B03FF856C99292E5219C415"box="[1213,1387,809,836]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34B, D, F</figureCitation>
). Adoral shields swollen, twice as wide as long, with angled, concave proximal edges of oral shield, not separating it from arm (
<figureCitationid="58E12A3B9B03FF8569F02968554FC4DB"box="[468,573,879,906]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34F</figureCitation>
). Jaw as wide as long bearing one pointed ventralmost tooth and three spiniform lateral oral papillae, proximalmost one spine-like, other two shorter and rounded (
<figureCitationid="58E12A3B9B03FF856D2429945218C4FC"box="[1280,1386,915,941]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="62"pageNumber="63">Fig. 34F</figureCitation>
). All teeth spiniform like ventralmost tooth (
<figureCitationid="58E12A3B9B03FF856A9229B15416C481"box="[694,868,950,977]"captionStart="Fig"captionStartId="62.[189,232,1840,1866]"captionTargetBox="[189,1395,1026,1823]"captionTargetId="figure-330@62.[189,1395,1026,1823]"captionTargetPageId="62"captionText="Fig. 35. Ophiomoeris petalis sp. nov., SEM, paratype (IDSSE EEB-SW0031). A–C. Lateral arm plate. D–F. Vertebrae. D. Dorsolateral view. E. Ventral view. F. Lateral view. Abbreviations: Dist = distal; dl = dorsal lobe; mo = muscle opening; no = nerve opening; Prox = proximal; vl = ventral lobe; vs = volute-shaped. Scale bars: A–B, E = 200 µm; C–D, F = 100 µm."figureDoi="http://doi.org/10.5281/zenodo.6419607"httpUri="https://zenodo.org/record/6419607/files/figure.png"pageId="62"pageNumber="63">Fig. 35B, D, F</figureCitation>
<taxonomicNameid="07DA4D3D9B03FF8569052D375562C01B"authority="Nethupul & Stöhr & Zhang, 2022"authorityName="Nethupul & Stöhr & Zhang"authorityYear="2022"box="[289,528,1840,1866]"class="Ophiuroidea"family="Ophiacanthidae"genus="Ophiomoeris"kingdom="Animalia"order="Ophiacanthida"pageId="62"pageNumber="63"phylum="Echinodermata"rank="species"species="petalis"status="sp. nov.">
. Seven thin arms, curled under disc. Dorsal arm plates fan-shaped, two times as wide as long, with convex distal edge and always separated (
<figureCitationid="58E12A3B9B02FF846ACB2B2B542DC617"box="[751,863,300,326]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="63"pageNumber="64">Fig. 34G</figureCitation>
). Ventral arm plate much wider than long on proximal segments, but reduced to small, round, thin scales, embedded in a strand of thick skin running along entire arm distally, always present along arm and always separated (
<figureCitationid="58E12A3B9B02FF846C312B7553F0C6DC"box="[1045,1154,370,397]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="63"pageNumber="64">Fig. 34H</figureCitation>
). Four thick, conical, smooth arm spines, two thirds arm segment in length (
<figureCitationid="58E12A3B9B02FF846B672B9154A4C6E1"box="[835,982,406,432]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="63"pageNumber="64">Fig. 34D, H</figureCitation>
). One minute tentacle scale clearly visible on proximal arm segments (
<figureCitationid="58E12A3B9B02FF846A782BBE55B8C682"box="[604,714,441,467]"captionStart="Fig"captionStartId="61.[189,232,1856,1882]"captionTargetBox="[189,1398,598,1835]"captionTargetId="figure-174@61.[189,1398,598,1835]"captionTargetPageId="61"captionText="Fig. 34. Ophiomoeris petalis sp. nov., holotype (IDSSE EEB-SW0029). A. Dorsal disc. B. Ventral disc. C. Dorsal disc (SEM). D. Ventral disc (SEM). E. Dorsal disc lobe (SEM). F. Oral frame (SEM). G. Dorsal arm. H. Ventral arm. Abbreviations: ars = arm spine; as = adoral shield; dap = dorsal arm plate; gra = granula; gs = genital slit; os = oral shield; ts = tentacle scale; vap = ventral arm plate. Scale bars: A, C = 500 µm; B, G–H = 200 µm; D = 1 mm; E = 250 µm; F = 300 µm."figureDoi="http://doi.org/10.5281/zenodo.6419605"httpUri="https://zenodo.org/record/6419605/files/figure.png"pageId="63"pageNumber="64">Fig. 34D</figureCitation>
OSSiCLE MORPHOLOGY. Arm spine articulation formed by two thick, smooth, curved lobes, ventral lobe smaller than dorsal lobe, positioned at angle to distal edge of lateral plate, with large muscle opening and small nerve opening, the latter large in dorsalmost articulation. Volute-shape not well defined, absent in dorsalmost articulation, dorsal and ventral articular lobes connected but separating in ventral articulations (
<figureCitationid="58E12A3B9B02FF84697B28BE5682C585"box="[351,496,697,724]"captionStart="Fig"captionStartId="62.[189,232,1840,1866]"captionTargetBox="[189,1395,1026,1823]"captionTargetId="figure-330@62.[189,1395,1026,1823]"captionTargetPageId="62"captionText="Fig. 35. Ophiomoeris petalis sp. nov., SEM, paratype (IDSSE EEB-SW0031). A–C. Lateral arm plate. D–F. Vertebrae. D. Dorsolateral view. E. Ventral view. F. Lateral view. Abbreviations: Dist = distal; dl = dorsal lobe; mo = muscle opening; no = nerve opening; Prox = proximal; vl = ventral lobe; vs = volute-shaped. Scale bars: A–B, E = 200 µm; C–D, F = 100 µm."figureDoi="http://doi.org/10.5281/zenodo.6419607"httpUri="https://zenodo.org/record/6419607/files/figure.png"pageId="63"pageNumber="64">Fig. 35A–C</figureCitation>
). Vertebrae elongated, with streptospondylous articulation, dorsal and lateral furrows absent, middle section much lower than proximal part and distal muscle flanges, with straight ambulacral groove. Podial basins at distal end, tongue-like with round hole (
<figureCitationid="58E12A3B9B02FF846C19290753B8C44A"box="[1085,1226,768,795]"captionStart="Fig"captionStartId="62.[189,232,1840,1866]"captionTargetBox="[189,1395,1026,1823]"captionTargetId="figure-330@62.[189,1395,1026,1823]"captionTargetPageId="62"captionText="Fig. 35. Ophiomoeris petalis sp. nov., SEM, paratype (IDSSE EEB-SW0031). A–C. Lateral arm plate. D–F. Vertebrae. D. Dorsolateral view. E. Ventral view. F. Lateral view. Abbreviations: Dist = distal; dl = dorsal lobe; mo = muscle opening; no = nerve opening; Prox = proximal; vl = ventral lobe; vs = volute-shaped. Scale bars: A–B, E = 200 µm; C–D, F = 100 µm."figureDoi="http://doi.org/10.5281/zenodo.6419607"httpUri="https://zenodo.org/record/6419607/files/figure.png"pageId="63"pageNumber="64">Fig. 35D–F</figureCitation>
<taxonomicNameid="07DA4D3D9B02FF846A452E5F5357C322"authority="(O'Hara et al. 2018)"baseAuthorityName="O'Hara"baseAuthorityYear="2018"box="[609,1061,1112,1139]"class="Ophiuroidea"family="Ophiacanthidae"kingdom="Animalia"order="Ophiacanthida"pageId="63"pageNumber="64"phylum="Echinodermata"rank="family">
Ophiacanthidae (
<bibRefCitationid="A44B4B4F9B02FF846B092E5E536FC322"author="O'Hara T. D. & Stohr S. & Hugall A. F. & Thuy B. & Martynov A."box="[813,1053,1112,1139]"pageId="63"pageNumber="64"pagination="1 - 35"refId="ref40127"refString="O'Hara T. D., Stohr S., Hugall A. F., Thuy B. & Martynov A. 2018. Morphological diagnoses of higher taxa in Ophiuroidea (Echinodermata) in support of a new classification. European Journal of Taxonomy 416: 1 - 35. https: // doi. org / 10.5852 / ejt. 2018.416"type="journal article"year="2018">
<bibRefCitationid="A44B4B4F9B02FF84697F2EC5568EC38D"author="Lyman T."box="[347,508,1218,1244]"pageId="63"pageNumber="64"pagination="65 - 168"refId="ref39095"refString="Lyman T. 1878. Ophiuridae and Astrophytidae of the " Challenger " expedition. Part I. Bulletin of the Museum of Comparative Zoology 5 (7): 65 - 168."type="journal article"year="1878">Lyman, 1878</bibRefCitation>
<bibRefCitationid="A44B4B4F9B02FF846A5B2EC55475C38D"author="Stohr S."box="[639,775,1218,1244]"pageId="63"pageNumber="64"pagination="1 - 50"refId="ref41433"refString="Stohr S. 2011. New records and new species of Ophiuroidea (Echinodermata) from Lifou, Loyalty Islands, New Caledonia. Zootaxa 50 (1): 1 - 50. https: // doi. org / 10.11646 / zootaxa. 3089.1.1"type="journal article"year="2011">Stöhr, 2011</bibRefCitation>
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)
</taxonomicName>
. The seven-fold symmetry is consistent in all our specimens. This is the first record of a sevenarmed (or indeed non-pentamerous) species in the genus
, and this distinguishes it from all congeners. The size differences among the seven sections of the animals suggests that it is a fissiparous species. Morphological characters to differentiate species in the genus
are otherwise difficult to interpret due to their high morphological variation among individuals. Taking geographic distribution into account, there may be several cryptic species complexes in the genus
<bibRefCitationid="A44B4B4F9B02FF846A9E2FBE54CCC283"author="O'Hara T. D. & Stohr S."box="[698,958,1464,1491]"pageId="63"pageNumber="64"pagination="33 - 141"refId="ref39816"refString="O'Hara T. D. & Stohr S. 2006. Deep water Ophiuroidea (Echinodermata) of New Caledonia: Ophiacanthidae and Hemieuryalidae. In: Richer de Forges B. & Justine J. - L. (ed.) Tropical Deep-Sea Benthos 24: 33 - 141. Museum national d'histoire naturelle, Paris."type="journal article"year="2006">O’Hara & Stöhr 2006</bibRefCitation>
;
<bibRefCitationid="A44B4B4F9B02FF846BEE2FBF533EC282"author="Stohr S."box="[970,1100,1464,1491]"pageId="63"pageNumber="64"pagination="1 - 50"refId="ref41433"refString="Stohr S. 2011. New records and new species of Ophiuroidea (Echinodermata) from Lifou, Loyalty Islands, New Caledonia. Zootaxa 50 (1): 1 - 50. https: // doi. org / 10.11646 / zootaxa. 3089.1.1"type="journal article"year="2011">Stöhr 2011</bibRefCitation>
