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<document id="9B02F0E04080A7DFF18E2BA7604991A7" ID-CLB-Dataset="30883" ID-DOI="10.11646/zootaxa.4377.1.1" ID-GBIF-Dataset="fbc66cd8-6a7b-4cf3-ac3f-850b17b3abe4" ID-ISSN="1175-5326" ID-Zenodo-Dep="1163170" ID-ZooBank="FE92756E-2212-4ADE-9FE0-31C30511583E" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1517396002872" checkinUser="plazi" docAuthor="Okanishi, Masanori &amp; Fujita, Yoshihisa" docDate="2018" docId="0393AD4FFFC13408FF1AF895FE9AFEEE" docLanguage="en" docName="zootaxa.4377.1.1.pdf" docOrigin="Zootaxa 4377 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Ophiolepis cavitata Okanishi &amp; Fujita 2018, n. sp." docType="treatment" docVersion="7" lastPageNumber="10" masterDocId="FFAAD537FFC33402FF8DFF91FF9FFF8B" masterDocTitle="First finding of anchialine and submarine cave dwelling brittle stars from the Pacific Ocean, with descriptions of new species of Ophiolepis and Ophiozonella (Echinodermata: Ophiuroidea: Amphilepidida)" masterLastPageNumber="20" masterPageNumber="1" pageNumber="3" updateTime="1698517853098" updateUser="ExternalLinkService">
<mods:mods id="BEEEDB45B4530F2140EE04DC7205B24C" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:title id="251DBD5F6422402250A2724FDE4F9BCC">First finding of anchialine and submarine cave dwelling brittle stars from the Pacific Ocean, with descriptions of new species of Ophiolepis and Ophiozonella (Echinodermata: Ophiuroidea: Amphilepidida)</mods:title>
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<mods:namePart id="ED11B22D10C4C447826353F6F6A03027">Okanishi, Masanori</mods:namePart>
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<mods:namePart id="0BCA7BAB7ADC09825D852B71FAF488AA">Fujita, Yoshihisa</mods:namePart>
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<mods:title id="D61E4C7249F0A6AA8DEC5E2AC7E47BE9">Zootaxa</mods:title>
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<mods:date id="B58ABD562154F449CBD566355CE06F07">2018</mods:date>
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<mods:number id="2FE47F6573162E048E87406C13122E03">2018-01-31</mods:number>
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<treatment id="0393AD4FFFC13408FF1AF895FE9AFEEE" ID-DOI="http://doi.org/10.5281/zenodo.3508735" ID-GBIF-Taxon="140561234" ID-Zenodo-Dep="3508735" LSID="urn:lsid:plazi:treatment:0393AD4FFFC13408FF1AF895FE9AFEEE" httpUri="http://treatment.plazi.org/id/0393AD4FFFC13408FF1AF895FE9AFEEE" lastPageId="10" lastPageNumber="10" pageId="2" pageNumber="3">
<subSubSection id="C3204FD2FFC13400FF1AF895FE94F8EE" pageId="2" pageNumber="3" type="nomenclature">
<paragraph id="8B851C59FFC13400FF1AF895FE57F894" blockId="2.[151,613,1796,1893]" box="[151,456,1796,1823]" pageId="2" pageNumber="3">
<heading id="D0CDAB35FFC13400FF1AF895FE57F894" bold="true" box="[151,456,1796,1823]" fontSize="11" level="1" pageId="2" pageNumber="3" reason="1">
<emphasis id="B94EC04BFFC13400FF1AF895FE57F894" bold="true" box="[151,456,1796,1823]" pageId="2" pageNumber="3">
<taxonomicName id="4C3A67DAFFC13400FF1AF895FEE1F895" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[151,382,1796,1822]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="2" pageNumber="3" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFC13400FF1AF895FEE1F895" bold="true" box="[151,382,1796,1822]" italics="true" pageId="2" pageNumber="3">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFC13400FE08F894FE57F894" box="[389,456,1797,1823]" pageId="2" pageNumber="3" rank="species">n. sp.</taxonomicNameLabel>
</emphasis>
</heading>
</paragraph>
<paragraph id="8B851C59FFC13400FF1AF8B9FE94F8EE" blockId="2.[151,613,1796,1893]" pageId="2" pageNumber="3">
[Japanese Name: Kunigami-kumohitode] (
<figureCitation id="130100DCFFC13400FF12F8DDFE9CF8EE" box="[159,259,1868,1893]" captionStart-0="FIGURE 2" captionStart-1="FIGURE 3" captionStart-2="FIGURE 4" captionStart-3="FIGURE5" captionStart-4="FIGURE6" captionStartId-0="3.[151,250,1823,1845]" captionStartId-1="5.[151,250,1875,1897]" captionStartId-2="6.[151,250,1938,1960]" captionStartId-3="7.[151,250,1824,1846]" captionStartId-4="8.[151,250,1871,1893]" captionTargetBox-0="[206,1391,406,1802]" captionTargetBox-1="[266,1335,193,1838]" captionTargetBox-2="[168,1436,343,1906]" captionTargetBox-3="[225,1372,183,1812]" captionTargetBox-4="[219,1387,196,1856]" captionTargetId-0="figure@3.[151,1436,373,1802]" captionTargetId-1="figure@5.[247,1356,193,1868]" captionTargetId-2="figure@6.[151,1436,343,1907]" captionTargetId-3="figure@7.[213,1381,183,1813]" captionTargetId-4="figure@8.[186,1410,177,1856]" captionTargetPageId-0="3" captionTargetPageId-1="5" captionTargetPageId-2="6" captionTargetPageId-3="7" captionTargetPageId-4="8" captionText-0="FIGURE 2. Ophiolepis cavitata n. sp., living holotype (RUMF-ZE-02006). A, in situ, aboral view; B, anesthetized, aboral view; C, anesthetized, oral view." captionText-1="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." captionText-2="FIGURE 4. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral middle portion of arm; B, aboral distal tip of arm; C, oral middle portion of arm; D, oral distal tip of arm; E, lateral middle portion of arm; F, lateral distal tip of arm. Abbreviation:ASP, arm spine; DAP, dorsal arm plate; LAP, lateral arm plate: VAP, ventral arm plate." captionText-3="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." captionText-4="FIGURE6. Ophiolepis cavitatan. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles.AC, vertebrae,from proximal portion ofarms, proximal view (A), distalview, one oral flange hasbroken off(B),aboral view (C); DG,vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximalportion of arms (H), distal portion of arms (I). Orientations:ab, aboral side; dis, distal side; o, oral side; pro, proximal side.Abbreviations:AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal." httpUri-0="https://zenodo.org/record/1163174/files/figure.png" httpUri-1="https://zenodo.org/record/1163176/files/figure.png" httpUri-2="https://zenodo.org/record/1163178/files/figure.png" httpUri-3="https://zenodo.org/record/1163180/files/figure.png" httpUri-4="https://zenodo.org/record/1163182/files/figure.png" pageId="2" pageNumber="3">Figs 26</figureCitation>
)
</paragraph>
</subSubSection>
<subSubSection id="C3204FD2FFC13400FF1AF805FB57F87F" pageId="2" pageNumber="3" type="materials_examined">
<paragraph id="8B851C59FFC13400FF1AF805FB57F87F" blockId="2.[151,1436,1940,2037]" pageId="2" pageNumber="3">
<materialsCitation id="3B521604FFC13400FF1AF805FF2CF87F" ID-GBIF-Occurrence="1806155409" collectingDate="2017-05-23" collectionCode="SCUBA" collectorName="Y. Fujita" country="Japan" elevation="12" location="Hedo-Dome" pageId="2" pageNumber="3" specimenCount="2" stateProvince="Okinawa" typeStatus="holotype">
<emphasis id="B94EC04BFFC13400FF1AF805FED6F826" bold="true" box="[151,329,1940,1965]" pageId="2" pageNumber="3">
<typeStatus id="5481A2FBFFC13400FF1AF805FF4DF826" box="[151,210,1940,1965]" pageId="2" pageNumber="3">Type</typeStatus>
material.
</emphasis>
<typeStatus id="5481A2FBFFC13400FED8F805FE5DF826" box="[341,450,1940,1965]" pageId="2" pageNumber="3" type="holotype">Holotype</typeStatus>
: RUMF-ZE-02006, submarine cave (
<location id="8EE54A82FFC13400FCF9F805FB9FF826" LSID="urn:lsid:plazi:treatment:0393AD4FFFC13408FF1AF895FE9AFEEE:8EE54A82FFC13400FCF9F805FB9FF826" box="[884,1024,1940,1965]" country="Japan" name="Hedo-Dome" pageId="2" pageNumber="3" stateProvince="Okinawa">Hedo-Dome</location>
cave) at northern
<collectingRegion id="49FED2BBFFC13400FB6DF805FADAF826" box="[1248,1349,1940,1965]" country="Japan" name="Okinawa" pageId="2" pageNumber="3">Okinawa</collectingRegion>
Island, southwestern
<collectingCountry id="F32D5CC9FFC13400FEBFF828FEEDF85B" box="[306,370,1977,2000]" name="Japan" pageId="2" pageNumber="3">Japan</collectingCountry>
(26˚52.14N, 128˚14.53E), c.a.
<elevation id="0017FB6AFFC13400FD6BF829FC80F85B" box="[742,799,1976,2000]" metricMagnitude="1" metricUnit="m" metricValue="1.2" pageId="2" pageNumber="3" unit="m" value="12.0">
<quantity id="4CC2B1BCFFC13400FD6BF829FC80F85B" box="[742,799,1976,2000]" metricMagnitude="1" metricUnit="m" metricValue="1.2" pageId="2" pageNumber="3" unit="m" value="12.0">12 m</quantity>
</elevation>
depth,
<collectingDate id="EFC0C371FFC13400FCFEF829FB92F85B" box="[883,1037,1976,2001]" pageId="2" pageNumber="3" value="2017-05-23">
<date id="FF843A99FFC13400FCFEF829FB92F85B" box="[883,1037,1976,2001]" pageId="2" pageNumber="3" value="2017-05-23">23 May 2017</date>
</collectingDate>
,
<collectionCode id="ED2B849CFFC13400FB95F829FBEAF85B" box="[1048,1141,1976,2000]" pageId="2" pageNumber="3">SCUBA</collectionCode>
diving, coll.
<collectorName id="26CF798FFFC13400FA81F828FAF3F85A" box="[1292,1388,1976,2001]" pageId="2" pageNumber="3">Y. Fujita</collectorName>
and M
</materialsCitation>
.
<materialsCitation id="3B521604FFC13400FF33F84DFB57F87F" ID-GBIF-Occurrence="1806155421" box="[190,1224,2012,2037]" collectingDate="2017-05-21" collectionCode="SCUBA" collectorName="Y. Fujita" country="Japan" elevation="12" location="Hedo-Dome" pageId="2" pageNumber="3" specimenCount="1" stateProvince="Okinawa" typeStatus="paratype">
Okanishi. One
<typeStatus id="5481A2FBFFC13400FEEBF84CFE54F87E" box="[358,459,2013,2037]" pageId="2" pageNumber="3" type="paratype">paratype</typeStatus>
: RUMF-ZE-02007 same locality as holotype,
<collectingDate id="EFC0C371FFC13400FC5CF84DFBF9F87F" box="[977,1126,2012,2037]" pageId="2" pageNumber="3" value="2017-05-21">
<date id="FF843A99FFC13400FC5CF84DFBF9F87F" box="[977,1126,2012,2037]" pageId="2" pageNumber="3" value="2017-05-21">21 May 2017</date>
</collectingDate>
(
<figureCitation id="130100DCFFC13400FBF8F84DFB28F87F" box="[1141,1207,2012,2037]" captionStart="FIGURE 1" captionStartId="1.[151,250,1946,1968]" captionTargetBox="[207,1389,627,1885]" captionTargetId="figure@1.[197,1390,626,1921]" captionTargetPageId="1" captionText="FIGURE 1. Sampling localities of Ophiolepis cavitata n. sp. and Ophiozonella cavernalis n. sp. Red symbols indicate type localities." httpUri="https://zenodo.org/record/1163172/files/figure.png" pageId="2" pageNumber="3">Fig. 1</figureCitation>
).
</materialsCitation>
</paragraph>
</subSubSection>
<subSubSection id="C3204FD2FFC03401FF4AFF06FE67FEB4" pageId="3" pageNumber="4" type="diagnosis">
<paragraph id="8B851C59FFC03401FF4AFF06FE67FEB4" blockId="3.[151,1436,151,320]" pageId="3" pageNumber="4">
<emphasis id="B94EC04BFFC03401FF4AFF06FEA5FF3B" bold="true" box="[199,314,151,176]" pageId="3" pageNumber="4">Diagnosis</emphasis>
. Round, prominent tubercle-shaped dorsal knobs on dorsal arm plates; the larger disc scales 38 times broader than smaller disc scales; larger disc scales concave; radial shields wider than long; a trio of elongate scales lying distal to each pair of radial shields; oral shields partly concave; supplementary plates alongside dorsal arm plate present on proximal 3 arm segments; lateral arm plates in contact after 9th arm segments; 3 arm spines on proximal segments of the arms.
</paragraph>
</subSubSection>
<caption id="DF454CD1FFC03401FF1AF88EFE7EF8DF" httpUri="https://zenodo.org/record/1163174/files/figure.png" pageId="3" pageNumber="4" targetBox="[206,1391,406,1802]" targetPageId="3">
<paragraph id="8B851C59FFC03401FF1AF88EFE7EF8DF" blockId="3.[151,1436,1823,1876]" pageId="3" pageNumber="4">
<emphasis id="B94EC04BFFC03401FF1AF88EFE8AF8BE" bold="true" box="[151,277,1823,1845]" pageId="3" pageNumber="4">FIGURE 2.</emphasis>
<taxonomicName id="4C3A67DAFFC03401FE93F88EFE78F8BD" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[286,487,1823,1846]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="3" pageNumber="4" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFC03401FE93F88EFE78F8BD" box="[286,487,1823,1846]" italics="true" pageId="3" pageNumber="4">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFC03401FE7DF88EFDB4F8BE" box="[496,555,1823,1845]" pageId="3" pageNumber="4" rank="species">
<emphasis id="B94EC04BFFC03401FE7DF88EFDB4F8BE" bold="true" box="[496,555,1823,1845]" pageId="3" pageNumber="4">n. sp.</emphasis>
</taxonomicNameLabel>
, living holotype (RUMF-ZE-02006). A,
<emphasis id="B94EC04BFFC03401FC5AF8B0FB80F8BD" box="[983,1055,1825,1846]" italics="true" pageId="3" pageNumber="4">in situ,</emphasis>
aboral view; B, anesthetized, aboral view; C, anesthetized, oral view.
</paragraph>
</caption>
<subSubSection id="C3204FD2FFC03404FF4AF810FCDCFE97" lastPageId="6" lastPageNumber="7" pageId="3" pageNumber="4" type="description">
<paragraph id="8B851C59FFC03401FF4AF810FA03F86A" blockId="3.[151,1436,1921,2017]" pageId="3" pageNumber="4">
<emphasis id="B94EC04BFFC03401FF4AF810FC41F811" bold="true" box="[199,990,1921,1946]" pageId="3" pageNumber="4">
Description of external morphology (
<typeStatus id="5481A2FBFFC03401FD09F810FD71F811" box="[644,750,1921,1946]" pageId="3" pageNumber="4" type="holotype">holotype</typeStatus>
, RUMF-ZE-02006).
</emphasis>
<emphasis id="B94EC04BFFC03401FC6AF813FBBEF812" box="[999,1057,1922,1945]" italics="true" pageId="3" pageNumber="4">Disc.</emphasis>
Circular,
<quantity id="4CC2B1BCFFC03401FB19F810FB49F812" box="[1172,1238,1921,1946]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" pageId="3" pageNumber="4" unit="mm" value="6.0">6 mm</quantity>
in diameter (
<figureCitation id="130100DCFFC03401FAE2F810FF38F836" captionStart="FIGURE 2" captionStartId="3.[151,250,1823,1845]" captionTargetBox="[206,1391,406,1802]" captionTargetId="figure@3.[151,1436,373,1802]" captionTargetPageId="3" captionText="FIGURE 2. Ophiolepis cavitata n. sp., living holotype (RUMF-ZE-02006). A, in situ, aboral view; B, anesthetized, aboral view; C, anesthetized, oral view." httpUri="https://zenodo.org/record/1163174/files/figure.png" pageId="3" pageNumber="4">Fig. 2</figureCitation>
), covered by imbricating scales of two sizes. On aboral surface, polygonal or circular larger scales, approximately 300600 µm in length, surrounded by smaller polygonal scales, approximately 50200 µm in length (
<figureCitation id="130100DCFFC03401FA9EF859FA10F86A" box="[1299,1423,1992,2017]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="3" pageNumber="4">Fig. 3A, C</figureCitation>
).
</paragraph>
<paragraph id="8B851C59FFC73406FF1AFF09FCA5FD0A" blockId="4.[151,1437,151,2035]" pageId="4" pageNumber="5">
Center of each larger scale concave (
<figureCitation id="130100DCFFC73406FDCEFF06FD01FF3B" box="[579,670,151,176]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3C</figureCitation>
). Radial shields parallelogram, distal side narrower, slightly larger than larger disc scales, approximately 700 µm in length and 300 µm in width, separated by smaller scales (
<figureCitation id="130100DCFFC73406FABAFF2AFA11FF5F" box="[1335,1422,187,212]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3B</figureCitation>
). A trio of plates just distal to a pair of radial shields (
<figureCitation id="130100DCFFC73406FD6CFF4EFCA6FF73" box="[737,825,223,248]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3B</figureCitation>
). On oral surface, adoral shields triangular, wider than long, approximately 500 µm in length, 150 µm in width inner side, 300 µm in width outer side, in contact with the first ventral arm plates (
<figureCitation id="130100DCFFC73406FE2EFEB7FD82FEB4" box="[419,541,294,319]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3DE</figureCitation>
). Oral plates triangular, approximately 200 µm in length, 180 µm in width inner side, 20 µm in width outer side, in contact with each other (
<figureCitation id="130100DCFFC73406FCBEFEDBFC14FEE8" box="[819,907,330,355]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3E</figureCitation>
). Oral shields pentagonal, slightly rounded and convex on distal side, approximately 500 µm in length, 400600 µm in width, and concave proximally (
<figureCitation id="130100DCFFC73406FAB9FEFFFA0FFE0C" box="[1332,1424,366,391]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3D</figureCitation>
). All oral shields similar in size and shape, oral shield serving as madreporite unrecognizable in external view (
<figureCitation id="130100DCFFC73406FAE2FE03FF26FE45" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3E</figureCitation>
). Interradial oral disc also covered by larger scales, approximately 250450 µm in length and smaller scales, approximately 80150 µm in length, as those on aboral disc (
<figureCitation id="130100DCFFC73406FCDEFE48FC35FE79" box="[851,938,473,498]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3F</figureCitation>
). Genital slits long, almost extending to the disc edge and narrower, approximately
<quantity id="4CC2B1BCFFC73406FDD4FE6FFD21FD9E" box="[601,702,510,534]" metricMagnitude="-5" metricUnit="m" metricValue="1.0" pageId="4" pageNumber="5" unit="mm" value="0.01">0.01 mm</quantity>
(
<figureCitation id="130100DCFFC73406FD42FE6CFCB9FD9D" box="[719,806,509,534]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3E</figureCitation>
), approximately 10 parallel ornaments on distal side of each genital plate. Three, subequal trapezoidal oral papillae at each oral plate, and 2 polygonal oral papillae, inner one wider than outer one, at each adoral shield (
<figureCitation id="130100DCFFC73406FD38FDD5FC92FDD6" box="[693,781,580,605]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3E</figureCitation>
). Teeth triangular, pointed, forming vertical row on dental plate. Second tentacle pore completely inside the mouth slit.
</paragraph>
<paragraph id="8B851C59FFC73406FF4AFD1CFBEAFD43" blockId="4.[151,1437,151,2035]" pageId="4" pageNumber="5">
<emphasis id="B94EC04BFFC73406FF4AFD1CFE95FD2F" box="[199,266,653,676]" italics="true" pageId="4" pageNumber="5">Arms.</emphasis>
Five in number,
<quantity id="4CC2B1BCFFC73406FE42FD1DFDD5FD2F" box="[463,586,652,677]" metricMagnitude="-2" metricUnit="m" metricValue="1.6" metricValueMax="1.7" metricValueMin="1.5" pageId="4" pageNumber="5" unit="mm" value="16.0" valueMax="17.0" valueMin="15.0">1517 mm</quantity>
in length,
<quantity id="4CC2B1BCFFC73406FD4AFD1CFC81FD2F" box="[711,798,653,677]" metricMagnitude="-3" metricUnit="m" metricValue="1.2" pageId="4" pageNumber="5" unit="mm" value="1.2">1.2 mm</quantity>
wide and
<quantity id="4CC2B1BCFFC73406FC1AFD1DFC70FD2F" box="[919,1007,652,677]" metricMagnitude="-4" metricUnit="m" metricValue="6.0" pageId="4" pageNumber="5" unit="mm" value="0.6">0.6 mm</quantity>
high (excluding the dorsal knobs), in proximal portion, square in section. Arms tapering gradually toward the arm tip (
<figureCitation id="130100DCFFC73406FBAFFD3EFBF7FD43" box="[1058,1128,687,712]" captionStart="FIGURE 2" captionStartId="3.[151,250,1823,1845]" captionTargetBox="[206,1391,406,1802]" captionTargetId="figure@3.[151,1436,373,1802]" captionTargetPageId="3" captionText="FIGURE 2. Ophiolepis cavitata n. sp., living holotype (RUMF-ZE-02006). A, in situ, aboral view; B, anesthetized, aboral view; C, anesthetized, oral view." httpUri="https://zenodo.org/record/1163174/files/figure.png" pageId="4" pageNumber="5">Fig. 2</figureCitation>
).
</paragraph>
<paragraph id="8B851C59FFC73406FF4AFD42FC9FFB36" blockId="4.[151,1437,151,2035]" pageId="4" pageNumber="5">
Each arm segment carrying a dorsal arm plate, 2 lateral arm plates and a ventral arm plate (
<figureCitation id="130100DCFFC73406FA9AFD42FAFEFD67" box="[1303,1377,723,748]" captionStart="FIGURE 4" captionStartId="6.[151,250,1938,1960]" captionTargetBox="[168,1436,343,1906]" captionTargetId="figure@6.[151,1436,343,1907]" captionTargetPageId="6" captionText="FIGURE 4. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral middle portion of arm; B, aboral distal tip of arm; C, oral middle portion of arm; D, oral distal tip of arm; E, lateral middle portion of arm; F, lateral distal tip of arm. Abbreviation:ASP, arm spine; DAP, dorsal arm plate; LAP, lateral arm plate: VAP, ventral arm plate." httpUri="https://zenodo.org/record/1163178/files/figure.png" pageId="4" pageNumber="5">Fig. 4</figureCitation>
). On proximal portion of the arm, dorsal arm plates sharply triangular, in contact with each other (
<figureCitation id="130100DCFFC73406FB27FD66FA9BFC9B" box="[1194,1284,759,784]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3H</figureCitation>
). Each dorsal arm plate carrying 2 small supplementary plates which disappear after 4th arm segments (
<figureCitation id="130100DCFFC73406FB23FC8AFA94FCB8" box="[1198,1291,795,820]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3H</figureCitation>
). On middle portion of the arm, dorsal arm plates separated and gradually decreasing in size toward the arm tip (
<figureCitation id="130100DCFFC73406FA9EFCAFFA0FFCDC" box="[1299,1424,830,855]" captionStart="FIGURE 4" captionStartId="6.[151,250,1938,1960]" captionTargetBox="[168,1436,343,1906]" captionTargetId="figure@6.[151,1436,343,1907]" captionTargetPageId="6" captionText="FIGURE 4. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral middle portion of arm; B, aboral distal tip of arm; C, oral middle portion of arm; D, oral distal tip of arm; E, lateral middle portion of arm; F, lateral distal tip of arm. Abbreviation:ASP, arm spine; DAP, dorsal arm plate; LAP, lateral arm plate: VAP, ventral arm plate." httpUri="https://zenodo.org/record/1163178/files/figure.png" pageId="4" pageNumber="5">Fig. 4AB</figureCitation>
). Dorsal arm plates essentially as wide as long throughout the arm (
<figureCitation id="130100DCFFC73406FC0DFCF3FC44FCF0" box="[896,987,866,891]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3H</figureCitation>
). Each dorsal arm plate carrying a large tubercle-shaped dorsal knob at proximal portion of arm (
<figureCitation id="130100DCFFC73406FCA4FC17FC1AFC14" box="[809,901,902,927]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3H</figureCitation>
). Knobs abruptly decrease in height at middle portion of arm, disappearing on distal portion of arm (
<figureCitation id="130100DCFFC73406FC8CFC3BFCFEFC49" box="[769,865,938,963]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Figs 3H</figureCitation>
; 4AB). Lateral arm plates thick, protruding from arm, widely separated by dorsal and ventral arm plates on proximal portion of arm (
<figureCitation id="130100DCFFC73406FBD2FC5CFB44FC6D" box="[1119,1243,973,998]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Fig. 3G, H</figureCitation>
), in contact with each other after 9th or 10th arm segments on both oral and aboral sides (
<figureCitation id="130100DCFFC73406FC44FC60FBD7FB81" box="[969,1096,1009,1034]" captionStart="FIGURE 4" captionStartId="6.[151,250,1938,1960]" captionTargetBox="[168,1436,343,1906]" captionTargetId="figure@6.[151,1436,343,1907]" captionTargetPageId="6" captionText="FIGURE 4. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral middle portion of arm; B, aboral distal tip of arm; C, oral middle portion of arm; D, oral distal tip of arm; E, lateral middle portion of arm; F, lateral distal tip of arm. Abbreviation:ASP, arm spine; DAP, dorsal arm plate; LAP, lateral arm plate: VAP, ventral arm plate." httpUri="https://zenodo.org/record/1163178/files/figure.png" pageId="4" pageNumber="5">Fig. 4AD</figureCitation>
). Ventral arm plates triangular with slightly pointed proximal edge and with concave lateral edges, almost as wide as long, contiguous on proximal portion of arms and separated on subsequent segments (
<figureCitation id="130100DCFFC73406FCF0FBA8FC42FBDA" box="[893,989,1081,1106]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Figs 3G</figureCitation>
; 4CD). Three short, appressed conical arm spines, about one-fifth length of the corresponding arm segment throughout the arms (
<figureCitation id="130100DCFFC73406FB03FBCDFA9EFBFE" box="[1166,1281,1116,1141]" captionStart="FIGURE 4" captionStartId="6.[151,250,1938,1960]" captionTargetBox="[168,1436,343,1906]" captionTargetId="figure@6.[151,1436,343,1907]" captionTargetPageId="6" captionText="FIGURE 4. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral middle portion of arm; B, aboral distal tip of arm; C, oral middle portion of arm; D, oral distal tip of arm; E, lateral middle portion of arm; F, lateral distal tip of arm. Abbreviation:ASP, arm spine; DAP, dorsal arm plate; LAP, lateral arm plate: VAP, ventral arm plate." httpUri="https://zenodo.org/record/1163178/files/figure.png" pageId="4" pageNumber="5">Fig. 4EF</figureCitation>
) (see detailed descriptions of each ossicle in next section). Two oval tentacle scales at each tentcale pore, inner scale smaller, approximately half length of outer scale (
<figureCitation id="130100DCFFC73406FDE8FB35FD5CFB36" box="[613,707,1188,1213]" captionStart="FIGURE 3" captionStartId="5.[151,250,1875,1897]" captionTargetBox="[266,1335,193,1838]" captionTargetId="figure@5.[247,1356,193,1868]" captionTargetPageId="5" captionText="FIGURE 3. Ophiolepis cavitata n. sp. holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP,lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth." httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="4" pageNumber="5">Figs 3G</figureCitation>
; 4C).
</paragraph>
<paragraph id="8B851C59FFC73406FF4AFB56FE30FA75" blockId="4.[151,1437,151,2035]" pageId="4" pageNumber="5">
<emphasis id="B94EC04BFFC73406FF4AFB56FC79FB6B" bold="true" box="[199,998,1223,1248]" pageId="4" pageNumber="5">
Description of ossicle morphology (a
<typeStatus id="5481A2FBFFC73406FD02FB56FD63FB6B" box="[655,764,1223,1248]" pageId="4" pageNumber="5" type="paratype">paratype</typeStatus>
, RUMF-ZE-02007)
</emphasis>
. Dorsal arm plates sharply triangular, longer than wide on proximal portion of the arms, nearly as long as wide on distal portion of the arms (
<figureCitation id="130100DCFFC73406FA98FB7AFA0FFA8F" box="[1301,1424,1259,1284]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5AB</figureCitation>
). Lateral arm plates longer than high, oral edge straight and aboral-proximal edge slightly convex (
<figureCitation id="130100DCFFC73406FB5CFA9EFA0EFAA3" box="[1233,1425,1295,1320]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5CD, GH</figureCitation>
). In external view, proximal edge convex with 2 well defined, prominent and horizontally elongated spurs composed of more densely meshed stereom than remaining proximal edge (
<figureCitation id="130100DCFFC73406FCE1FAC7FC79FAE4" box="[876,998,1366,1391]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5C, G</figureCitation>
). Oral external spur slightly larger than aboral one. Bands of conspicuous, fine horizontal striations on the proximal edge, almost the same length but several striations on aboral side slightly shorter (
<figureCitation id="130100DCFFC73406FD4FFA0FFCDFFA3C" box="[706,832,1438,1463]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5C, G</figureCitation>
). Three equal-sized spine articulations on distal edge (
<figureCitation id="130100DCFFC73406FF12FA53FE94FA51" box="[159,267,1474,1499]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5E, I</figureCitation>
), composed of parallel, horizontal dorsal and ventral lobes (
<figureCitation id="130100DCFFC73406FC25FA53FB8CFA51" box="[936,1043,1474,1499]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5F, J</figureCitation>
). Dorsal lobes basically larger than ventral lobes (
<figureCitation id="130100DCFFC73406FEBBFA77FE3EFA75" box="[310,417,1510,1535]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5F, J</figureCitation>
).
</paragraph>
<paragraph id="8B851C59FFC73406FF4AF99BFABBF897" blockId="4.[151,1437,151,2035]" pageId="4" pageNumber="5">
On inner side, 2 well defined large, horizontally elevated structures on proximal edges (
<figureCitation id="130100DCFFC73406FB42F998FACCF9A9" box="[1231,1363,1545,1570]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5D, H</figureCitation>
). Oral elevated structure wider than aboral on proximal portion of arm (
<figureCitation id="130100DCFFC73406FC1FF9BCFC72F9CD" box="[914,1005,1581,1606]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5D</figureCitation>
) but on distal portion of arm, aboral elevated structure wider than oral (
<figureCitation id="130100DCFFC73406FD96F9C0FDEAF9E1" box="[539,629,1617,1642]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5H</figureCitation>
). Distal edge concave with 2 well defined, oval and slightly horizontally elongated spurs (
<figureCitation id="130100DCFFC73406FEDBF9E5FE4BF906" box="[342,468,1652,1677]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5D, H</figureCitation>
). Aboral spur slightly wider than oral on proximal portion of arm but of the same size on distal portion of arm (
<figureCitation id="130100DCFFC73406FE21F909FDB7F93A" box="[428,552,1688,1713]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5D, H</figureCitation>
). Spurs composed of more densely meshed stereom than remaining distal edge. Large tentacle notches opening on aboral side and end in center of lateral arm plates, where a single perforation is opening (
<figureCitation id="130100DCFFC73406FE8EF94EFE1AF973" box="[259,389,1759,1784]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5D, H</figureCitation>
). Ventral arm plates basically sharply triangular, notched on lateral sides. Proximal surface shallow concavity is larger on proximal portion of arm (
<figureCitation id="130100DCFFC73406FC87F892FCFDF897" box="[778,866,1795,1820]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5K</figureCitation>
) than on distal portion of arm (
<figureCitation id="130100DCFFC73406FB4DF892FA88F897" box="[1216,1303,1795,1820]" captionStart="FIGURE5" captionStartId="7.[151,250,1824,1846]" captionTargetBox="[225,1372,183,1812]" captionTargetId="figure@7.[213,1381,183,1813]" captionTargetPageId="7" captionText="FIGURE5. Ophiolepis cavitata n. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximalportion (K) and distalportion (L)of arms.All lateralarm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe." httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="4" pageNumber="5">Fig. 5L</figureCitation>
).
</paragraph>
<paragraph id="8B851C59FFC73406FF4AF8B6FA8CF820" blockId="4.[151,1437,151,2035]" pageId="4" pageNumber="5">
Vertebrae with zygospondylous articulation, elongate, large wing-like muscle flanges on oral-distal side and aboral-proximal side (
<figureCitation id="130100DCFFC73406FE14F8DAFD88F8EF" box="[409,535,1867,1892]" captionStart="FIGURE6" captionStartId="8.[151,250,1871,1893]" captionTargetBox="[219,1387,196,1856]" captionTargetId="figure@8.[186,1410,177,1856]" captionTargetPageId="8" captionText="FIGURE6. Ophiolepis cavitatan. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles.AC, vertebrae,from proximal portion ofarms, proximal view (A), distalview, one oral flange hasbroken off(B),aboral view (C); DG,vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximalportion of arms (H), distal portion of arms (I). Orientations:ab, aboral side; dis, distal side; o, oral side; pro, proximal side.Abbreviations:AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal." httpUri="https://zenodo.org/record/1163182/files/figure.png" pageId="4" pageNumber="5">Fig. 6AF</figureCitation>
). Muscle flanges on distal portion of arms narrower than those of proximal portion. Longitudinal groove on both aboral and oral side (
<figureCitation id="130100DCFFC73406FCB0F8FFFC44F80C" box="[829,987,1902,1927]" captionStart="FIGURE6" captionStartId="8.[151,250,1871,1893]" captionTargetBox="[219,1387,196,1856]" captionTargetId="figure@8.[186,1410,177,1856]" captionTargetPageId="8" captionText="FIGURE6. Ophiolepis cavitatan. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles.AC, vertebrae,from proximal portion ofarms, proximal view (A), distalview, one oral flange hasbroken off(B),aboral view (C); DG,vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximalportion of arms (H), distal portion of arms (I). Orientations:ab, aboral side; dis, distal side; o, oral side; pro, proximal side.Abbreviations:AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal." httpUri="https://zenodo.org/record/1163182/files/figure.png" pageId="4" pageNumber="5">Fig. 6C, FG</figureCitation>
). A pair of radial water canals opening inside oral groove (
<figureCitation id="130100DCFFC73406FEFDF803FE59F820" box="[368,454,1938,1963]" captionStart="FIGURE6" captionStartId="8.[151,250,1871,1893]" captionTargetBox="[219,1387,196,1856]" captionTargetId="figure@8.[186,1410,177,1856]" captionTargetPageId="8" captionText="FIGURE6. Ophiolepis cavitatan. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles.AC, vertebrae,from proximal portion ofarms, proximal view (A), distalview, one oral flange hasbroken off(B),aboral view (C); DG,vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximalportion of arms (H), distal portion of arms (I). Orientations:ab, aboral side; dis, distal side; o, oral side; pro, proximal side.Abbreviations:AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal." httpUri="https://zenodo.org/record/1163182/files/figure.png" pageId="4" pageNumber="5">Fig. 6F</figureCitation>
). Depression for tentacles located on lateral distal side of vertebra (
<figureCitation id="130100DCFFC73406FB35F803FA94F820" box="[1208,1291,1938,1963]" captionStart="FIGURE6" captionStartId="8.[151,250,1871,1893]" captionTargetBox="[219,1387,196,1856]" captionTargetId="figure@8.[186,1410,177,1856]" captionTargetPageId="8" captionText="FIGURE6. Ophiolepis cavitatan. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles.AC, vertebrae,from proximal portion ofarms, proximal view (A), distalview, one oral flange hasbroken off(B),aboral view (C); DG,vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximalportion of arms (H), distal portion of arms (I). Orientations:ab, aboral side; dis, distal side; o, oral side; pro, proximal side.Abbreviations:AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal." httpUri="https://zenodo.org/record/1163182/files/figure.png" pageId="4" pageNumber="5">Fig. 6F</figureCitation>
)
</paragraph>
<paragraph id="8B851C59FFC73406FF4AF826FCF8F878" blockId="4.[151,1437,151,2035]" pageId="4" pageNumber="5">
Arm spines short, pointed, thicker at proximal portion of arms than at distal portion of arm (
<figureCitation id="130100DCFFC73406FB41F827FAA0F844" box="[1228,1343,1974,1999]" captionStart="FIGURE6" captionStartId="8.[151,250,1871,1893]" captionTargetBox="[219,1387,196,1856]" captionTargetId="figure@8.[186,1410,177,1856]" captionTargetPageId="8" captionText="FIGURE6. Ophiolepis cavitatan. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles.AC, vertebrae,from proximal portion ofarms, proximal view (A), distalview, one oral flange hasbroken off(B),aboral view (C); DG,vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximalportion of arms (H), distal portion of arms (I). Orientations:ab, aboral side; dis, distal side; o, oral side; pro, proximal side.Abbreviations:AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal." httpUri="https://zenodo.org/record/1163182/files/figure.png" pageId="4" pageNumber="5">Fig. 6HI</figureCitation>
). Spines with simple and fine stereom bearing minute thorns (
<figureCitation id="130100DCFFC73406FD65F84BFCC4F878" box="[744,859,2010,2035]" captionStart="FIGURE6" captionStartId="8.[151,250,1871,1893]" captionTargetBox="[219,1387,196,1856]" captionTargetId="figure@8.[186,1410,177,1856]" captionTargetPageId="8" captionText="FIGURE6. Ophiolepis cavitatan. sp. a paratype (RUMF-ZE-02007).SEM images of ossicles.AC, vertebrae,from proximal portion ofarms, proximal view (A), distalview, one oral flange hasbroken off(B),aboral view (C); DG,vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximalportion of arms (H), distal portion of arms (I). Orientations:ab, aboral side; dis, distal side; o, oral side; pro, proximal side.Abbreviations:AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal." httpUri="https://zenodo.org/record/1163182/files/figure.png" pageId="4" pageNumber="5">Fig. 6HI</figureCitation>
).
</paragraph>
<caption id="DF454CD1FFC63407FF1AF8C2FB2AF87B" httpUri="https://zenodo.org/record/1163176/files/figure.png" pageId="5" pageNumber="6" targetBox="[266,1335,193,1838]" targetPageId="5">
<paragraph id="8B851C59FFC63407FF1AF8C2FB2AF87B" blockId="5.[151,1436,1875,2032]" pageId="5" pageNumber="6">
<emphasis id="B94EC04BFFC63407FF1AF8C2FE8AF8E2" bold="true" box="[151,277,1875,1897]" pageId="5" pageNumber="6">FIGURE 3.</emphasis>
<taxonomicName id="4C3A67DAFFC63407FE90F8C2FE78F8E2" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[285,487,1875,1897]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="5" pageNumber="6" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFC63407FE90F8C2FE78F8E2" box="[285,487,1875,1897]" italics="true" pageId="5" pageNumber="6">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFC63407FE62F8C2FDB5F8E2" box="[495,554,1875,1897]" pageId="5" pageNumber="6" rank="species">
<emphasis id="B94EC04BFFC63407FE62F8C2FDB5F8E2" bold="true" box="[495,554,1875,1897]" pageId="5" pageNumber="6">n. sp.</emphasis>
</taxonomicNameLabel>
holotype (RUMF-ZE-02006). A, aboral disc; B, aboral peripheral disc and proximal portion of arm; C, aboral central disc; D, oral disc and proximal portion of arms; E, oral disc, an arrow head indicates a concaved part; F, interradial oral disc; G, oral proximal portion of arm, arrowheads indicate tentacle scales; H, aboral proximal portion of arm. Abbreviations: ASH, adoral shield; ASP, arm spine; DAP, dorsal arm plate; GS, genital slit; K, dorsal knob; LAP, lateral arm plate; OP, oral plate; OS, oral shield; P, oral papillae; SP, supplementary plate; T, tooth.
</paragraph>
</caption>
<paragraph id="8B851C59FFC53404FF4AFF06FCDCFE97" blockId="6.[151,1436,151,285]" pageId="6" pageNumber="7">
<emphasis id="B94EC04BFFC53404FF4AFF06FEC6FF3B" bold="true" box="[199,345,151,176]" pageId="6" pageNumber="7">Color in life</emphasis>
. Creamy white. On aboral side, distal edges of larger disc scales, several lateral arm plates and dorsal arm plates pinkish. Pink or brown spots scattered on aboral disc and inner edge of lateral arm plates. Brown transverse bands on two arm segments every five arm segments (
<figureCitation id="130100DCFFC53404FC0EFF4EFC56FF73" box="[899,969,223,248]" captionStart="FIGURE 2" captionStartId="3.[151,250,1823,1845]" captionTargetBox="[206,1391,406,1802]" captionTargetId="figure@3.[151,1436,373,1802]" captionTargetPageId="3" captionText="FIGURE 2. Ophiolepis cavitata n. sp., living holotype (RUMF-ZE-02006). A, in situ, aboral view; B, anesthetized, aboral view; C, anesthetized, oral view." httpUri="https://zenodo.org/record/1163174/files/figure.png" pageId="6" pageNumber="7">Fig. 2</figureCitation>
). On oral side, proximal portion of arms slightly pinkish, tentacle pore especially deep pink (
<figureCitation id="130100DCFFC53404FD50FE95FCA9FE97" box="[733,822,260,285]" captionStart="FIGURE 2" captionStartId="3.[151,250,1823,1845]" captionTargetBox="[206,1391,406,1802]" captionTargetId="figure@3.[151,1436,373,1802]" captionTargetPageId="3" captionText="FIGURE 2. Ophiolepis cavitata n. sp., living holotype (RUMF-ZE-02006). A, in situ, aboral view; B, anesthetized, aboral view; C, anesthetized, oral view." httpUri="https://zenodo.org/record/1163174/files/figure.png" pageId="6" pageNumber="7">Fig. 2C</figureCitation>
).
</paragraph>
</subSubSection>
<caption id="DF454CD1FFC53404FF1AF803FB08F86E" httpUri="https://zenodo.org/record/1163178/files/figure.png" pageId="6" pageNumber="7" targetBox="[168,1436,343,1906]" targetPageId="6">
<paragraph id="8B851C59FFC53404FF1AF803FB08F86E" blockId="6.[151,1436,1938,2021]" pageId="6" pageNumber="7">
<emphasis id="B94EC04BFFC53404FF1AF803FE8BF823" bold="true" box="[151,276,1938,1960]" pageId="6" pageNumber="7">FIGURE 4.</emphasis>
<taxonomicName id="4C3A67DAFFC53404FE91F803FE7AF823" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[284,485,1938,1960]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="6" pageNumber="7" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFC53404FE91F803FE7AF823" box="[284,485,1938,1960]" italics="true" pageId="6" pageNumber="7">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFC53404FE61F803FDB8F823" box="[492,551,1938,1960]" pageId="6" pageNumber="7" rank="species">
<emphasis id="B94EC04BFFC53404FE61F803FDB8F823" bold="true" box="[492,551,1938,1960]" pageId="6" pageNumber="7">n. sp.</emphasis>
</taxonomicNameLabel>
holotype (RUMF-ZE-02006). A, aboral middle portion of arm; B, aboral distal tip of arm; C, oral middle portion of arm; D, oral distal tip of arm; E, lateral middle portion of arm; F, lateral distal tip of arm. Abbreviation: ASP, arm spine; DAP, dorsal arm plate; LAP, lateral arm plate: VAP, ventral arm plate.
</paragraph>
</caption>
<caption id="DF454CD1FFC43405FF1AF8B1FB44F865" httpUri="https://zenodo.org/record/1163180/files/figure.png" pageId="7" pageNumber="8" targetBox="[225,1372,183,1812]" targetPageId="7">
<paragraph id="8B851C59FFC43405FF1AF8B1FB44F865" blockId="7.[151,1436,1824,2030]" pageId="7" pageNumber="8">
<emphasis id="B94EC04BFFC43405FF1AF8B1FE8DF8BD" bold="true" box="[151,274,1824,1846]" pageId="7" pageNumber="8">FIGURE 5.</emphasis>
<taxonomicName id="4C3A67DAFFC43405FE94F8B1FE7FF8BD" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[281,480,1824,1846]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="7" pageNumber="8" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFC43405FE94F8B1FE7FF8BD" box="[281,480,1824,1846]" italics="true" pageId="7" pageNumber="8">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFC43405FE6BF8B1FD80F8BD" box="[486,543,1824,1846]" pageId="7" pageNumber="8" rank="species">
<emphasis id="B94EC04BFFC43405FE6BF8B1FD80F8BD" bold="true" box="[486,543,1824,1846]" pageId="7" pageNumber="8">n. sp.</emphasis>
</taxonomicNameLabel>
a paratype (RUMF-ZE-02007). SEM images of ossicles. A, B, dorsal arm plates, aboral views, from proximal portion (A) and middle portion of arm (B); CF, lateral arm plates, from proximal portion of arms, inner view (D), outer view, distal view, a square enlarged in F (E), an arm spine articulation (F); GJ, lateral arm plates, from distal portion of arms, outer view (G), inner view (H), distal view, a square enlarged in J (I), an arm spine articulation (J); K, L, ventral arm plates, inner views from proximal portion (K) and distal portion (L) of arms. All lateral arm plates (CJ) are aligned in the same orientation. Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal. Abbreviations: DL, dorsal lobe; E, elevated structure; K, dorsal knob; P, perforation; SA, spine articulation; SP, spur; VL, ventral lobe.
</paragraph>
</caption>
<caption id="DF454CD1FFCB340AFF1AF8DEFAE6F86B" httpUri="https://zenodo.org/record/1163182/files/figure.png" pageId="8" pageNumber="9" targetBox="[219,1387,196,1856]" targetPageId="8">
<paragraph id="8B851C59FFCB340AFF1AF8DEFAE6F86B" blockId="8.[151,1436,1871,2016]" pageId="8" pageNumber="9">
<emphasis id="B94EC04BFFCB340AFF1AF8DEFE8DF8EE" bold="true" box="[151,274,1871,1893]" pageId="8" pageNumber="9">FIGURE 6.</emphasis>
<taxonomicName id="4C3A67DAFFCB340AFE95F8DEFE40F8EE" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[280,479,1871,1893]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="8" pageNumber="9" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCB340AFE95F8DEFE40F8EE" box="[280,479,1871,1893]" italics="true" pageId="8" pageNumber="9">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCB340AFE69F8DEFD82F8EE" box="[484,541,1871,1893]" pageId="8" pageNumber="9" rank="species">
<emphasis id="B94EC04BFFCB340AFE69F8DEFD82F8EE" bold="true" box="[484,541,1871,1893]" pageId="8" pageNumber="9">n. sp.</emphasis>
</taxonomicNameLabel>
a paratype (RUMF-ZE-02007). SEM images of ossicles. AC, vertebrae, from proximal portion of arms, proximal view (A), distal view, one oral flange has broken off (B), aboral view (C); DG, vertebrae, from distal portion of arms, proximal view (D), distal view (E), oral view (F) and aboral view (G); H, I, oral most arm spines, from proximal portion of arms (H), distal portion of arms (I). Orientations: ab, aboral side; dis, distal side; o, oral side; pro, proximal side. Abbreviations: AF, aboral muscle flange; D, depression for tentacle; OF, oral muscle flange; RWC, radial water canal.
</paragraph>
</caption>
<subSubSection id="C3204FD2FFCA340BFF4AFF06FAC2FF5F" pageId="9" pageNumber="10" type="distribution">
<paragraph id="8B851C59FFCA340BFF4AFF06FAC2FF5F" blockId="9.[151,1437,151,1005]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFF06FEFFFF3B" bold="true" box="[199,352,151,176]" pageId="9" pageNumber="10">Distribution.</emphasis>
<collectingCountry id="F32D5CC9FFCA340BFEE4FF09FE5DFF3B" box="[361,450,152,176]" name="Japan" pageId="9" pageNumber="10">JAPAN</collectingCountry>
: a submarine cave (Hedo-Dome cave) of northern
<collectingRegion id="49FED2BBFFCA340BFB85FF06FBF2FF3B" box="[1032,1133,151,176]" country="Japan" name="Okinawa" pageId="9" pageNumber="10">Okinawa</collectingRegion>
Island (
<typeStatus id="5481A2FBFFCA340BFB46FF09FA9AFF3B" box="[1227,1285,152,176]" pageId="9" pageNumber="10">Type</typeStatus>
locality,
<figureCitation id="130100DCFFCA340BFAFDFF06FF3BFF5F" captionStart="FIGURE 1" captionStartId="1.[151,250,1946,1968]" captionTargetBox="[207,1389,627,1885]" captionTargetId="figure@1.[197,1390,626,1921]" captionTargetPageId="1" captionText="FIGURE 1. Sampling localities of Ophiolepis cavitata n. sp. and Ophiozonella cavernalis n. sp. Red symbols indicate type localities." httpUri="https://zenodo.org/record/1163172/files/figure.png" pageId="9" pageNumber="10">Fig. 1</figureCitation>
), ca.
<quantity id="4CC2B1BCFFCA340BFF6EFF2DFE83FF5F" box="[227,284,188,213]" metricMagnitude="1" metricUnit="m" metricValue="4.5" pageId="9" pageNumber="10" unit="m" value="45.0">45 m</quantity>
distance from the entrance of the cave, hyposaline 28 ppt, ca.
<quantity id="4CC2B1BCFFCA340BFC5AFF2DFB8FFF5F" box="[983,1040,188,212]" metricMagnitude="1" metricUnit="m" metricValue="1.2" pageId="9" pageNumber="10" unit="m" value="12.0">12 m</quantity>
depth, under rocks (
<figureCitation id="130100DCFFCA340BFB7BFF2DFACFFF5F" box="[1270,1360,188,213]" captionStart="FIGURE 2" captionStartId="3.[151,250,1823,1845]" captionTargetBox="[206,1391,406,1802]" captionTargetId="figure@3.[151,1436,373,1802]" captionTargetPageId="3" captionText="FIGURE 2. Ophiolepis cavitata n. sp., living holotype (RUMF-ZE-02006). A, in situ, aboral view; B, anesthetized, aboral view; C, anesthetized, oral view." httpUri="https://zenodo.org/record/1163174/files/figure.png" pageId="9" pageNumber="10">Fig. 2A</figureCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="C3204FD2FFCA340BFF4AFF4EFC86FD7B" pageId="9" pageNumber="10" type="etymology">
<paragraph id="8B851C59FFCA340BFF4AFF4EFD4EFE96" blockId="9.[151,1437,151,1005]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFF4EFED1FF73" bold="true" box="[199,334,223,248]" pageId="9" pageNumber="10">Etymology.</emphasis>
The specific name is derived from the Latin adjective,
<taxonomicName id="4C3A67DAFFCA340BFC4CFF71FB84FF7C" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[961,1051,224,247]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata">
<emphasis id="B94EC04BFFCA340BFC4CFF71FB84FF7C" box="[961,1051,224,247]" italics="true" pageId="9" pageNumber="10">cavitata</emphasis>
</taxonomicName>
meaning “concaved”, referring to the partly concaved oral shield of this new species.
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AFEB6FDBAFD0E" blockId="9.[151,1437,151,1005]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFEB6FEB5FECB" bold="true" box="[199,298,295,320]" pageId="9" pageNumber="10">Habitat.</emphasis>
<taxonomicName id="4C3A67DAFFCA340BFEBFFEB9FD8FFEB4" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[306,528,296,320]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFEBFFEB9FD8FFEB4" box="[306,528,296,320]" italics="true" pageId="9" pageNumber="10">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFD94FEB6FDC6FECB" box="[537,601,295,320]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFD94FEB6FDC6FECB" bold="true" box="[537,601,295,320]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
was found in a submarine cave popularly known as “Hedo-Dome cave”, located at the north coast of
<collectingRegion id="49FED2BBFFCA340BFE5EFEDDFDA7FEEE" box="[467,568,332,357]" country="Japan" name="Okinawa" pageId="9" pageNumber="10">Okinawa</collectingRegion>
Island, Ryukyu Islands, southwestern
<collectingCountry id="F32D5CC9FFCA340BFC65FEDCFBB4FEEF" box="[1000,1067,333,356]" name="Japan" pageId="9" pageNumber="10">Japan</collectingCountry>
. The caves entrance lies at
<quantity id="4CC2B1BCFFCA340BFAE9FEDDFA03FEEF" box="[1380,1436,332,357]" metricMagnitude="1" metricUnit="m" metricValue="1.5" pageId="9" pageNumber="10" unit="m" value="15.0">15 m</quantity>
below sea level, and is
<quantity id="4CC2B1BCFFCA340BFE11FEE1FE49FE0C" box="[412,470,368,392]" metricMagnitude="1" metricUnit="m" metricValue="1.4" pageId="9" pageNumber="10" unit="m" value="14.0">14 m</quantity>
wide and
<quantity id="4CC2B1BCFFCA340BFDC7FEE1FDE9FE0C" box="[586,630,368,392]" metricMagnitude="0" metricUnit="m" metricValue="3.0" pageId="9" pageNumber="10" unit="m" value="3.0">3 m</quantity>
high. The interior of the cave is about
<quantity id="4CC2B1BCFFCA340BFBA1FEFEFBF9FE0C" box="[1068,1126,367,392]" metricMagnitude="1" metricUnit="m" metricValue="5.3" pageId="9" pageNumber="10" unit="m" value="53.0">53 m</quantity>
long, and is continued by a stepwise tunnel with frontage road. Although we conducted simple quantitative surveys in the Hedo-Dome cave during
<date id="FF843A99FFCA340BFF6AFE29FE20FE5B" box="[231,447,440,464]" pageId="9" pageNumber="10" value="2017-05-21" valueMax="2017-05-23" valueMin="2017-05-21">21 to 23 May 2017</date>
, this new species was only found at the “silty room”, which is approximately
<quantity id="4CC2B1BCFFCA340BFAABFE26FAC0FE44" box="[1318,1375,439,464]" metricMagnitude="1" metricUnit="m" metricValue="4.5" pageId="9" pageNumber="10" unit="m" value="45.0">45 m</quantity>
from the entrance of the cave, with no light and low salinity (28 ppt), suggesting its anchialine environment. Successive surveys around
<collectingRegion id="49FED2BBFFCA340BFEC7FE6EFE30FD93" box="[330,431,511,536]" country="Japan" name="Okinawa" pageId="9" pageNumber="10">Okinawa</collectingRegion>
Islands by scuba diving have been conducted but this species has never been discovered elsewhere (e.g. Y. Fujita
<emphasis id="B94EC04BFFCA340BFE21FDB4FE7BFDB7" box="[428,484,548,572]" italics="true" pageId="9" pageNumber="10">et al.</emphasis>
2015). Therefore, this new species has so far only found in
<collectingCountry id="F32D5CC9FFCA340BFB0CFDB4FB5EFDB7" box="[1153,1217,549,572]" name="Japan" pageId="9" pageNumber="10">Japan</collectingCountry>
in the cave system. However, only
<specimenCount id="9D3CD7D0FFCA340BFEC1FDD9FE45FDEB" box="[332,474,583,608]" pageId="9" pageNumber="10" type="generic">2 specimens</specimenCount>
were found in a single cave despite extensive searching, which suggests that this occurrence may have been random.
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AFD1EFC86FD7B" blockId="9.[151,1437,151,1005]" pageId="9" pageNumber="10">
If the single specimen collected at
<quantity id="4CC2B1BCFFCA340BFDE0FD01FD34FD2C" box="[621,683,656,680]" metricMagnitude="1" metricUnit="m" metricValue="7.3" pageId="9" pageNumber="10" unit="m" value="73.0">73 m</quantity>
depth off Fraser Island, Queensland, northeastern Australia (as
<emphasis id="B94EC04BFFCA340BFF1AFD25FEEEFD47" box="[151,369,692,716]" italics="true" pageId="9" pageNumber="10">
<taxonomicName id="4C3A67DAFFCA340BFF1AFD25FEF2FD47" authorityName="Koehler" authorityYear="1898" box="[151,365,692,716]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">Ophiolepis rugosa</taxonomicName>
,
</emphasis>
see also “
<emphasis id="B94EC04BFFCA340BFE62FD25FDCEFD47" box="[495,593,692,716]" italics="true" pageId="9" pageNumber="10">Remarks</emphasis>
” of this section and
<bibRefCitation id="EFAB61A8FFCA340BFCC6FD25FC4CFD47" author="Baker" box="[843,979,692,717]" pageId="9" pageNumber="10" refString="Baker, A. N. (1979) Some Ophiuroidea from the Tasman Sea and adjacent waters. New Zealand Journal of Zoology, 6, 21 - 51. https: // doi. org / 10.1080 / 03014223.1979.10428345" type="journal article" year="1979">Baker 1979</bibRefCitation>
) was proved to be conspecific with
<emphasis id="B94EC04BFFCA340BFA0CFD25FF67FD64" italics="true" pageId="9" pageNumber="10">
<taxonomicName id="4C3A67DAFFCA340BFA0CFD25FF6BFD64" authorityName="Okanishi &amp; Fujita" authorityYear="2018" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata">O. cavitata</taxonomicName>
,
</emphasis>
this species does not indicate a cave population.
</paragraph>
</subSubSection>
<subSubSection id="C3204FD2FFCA340BFF4AFD6DFF70FA87" pageId="9" pageNumber="10" type="discussion">
<paragraph id="8B851C59FFCA340BFF4AFD6DFC2FFC66" blockId="9.[151,1437,151,1005]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFD6DFEABFC9E" bold="true" box="[199,308,764,789]" pageId="9" pageNumber="10">Remarks</emphasis>
. Of the 21 extant species in the genus
<taxonomicName id="4C3A67DAFFCA340BFD79FD6DFBD3FC9F" authority="(Stohr et al. 2017)" authorityName="Stohr et al." authorityYear="2017" box="[756,1100,764,789]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="genus">
<emphasis id="B94EC04BFFCA340BFD79FD6DFCF0FC9F" box="[756,879,764,788]" italics="true" pageId="9" pageNumber="10">Ophiolepis</emphasis>
(Stöhr
<emphasis id="B94EC04BFFCA340BFC48FD6CFB9FFC9F" box="[965,1024,764,788]" italics="true" pageId="9" pageNumber="10">et al.</emphasis>
2017)
</taxonomicName>
,
<taxonomicName id="4C3A67DAFFCA340BFBD4FD6DFAA8FC9F" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[1113,1335,764,788]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFBD4FD6DFAA8FC9F" box="[1113,1335,764,788]" italics="true" pageId="9" pageNumber="10">Ophiolepis cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFACDFD6DFA1EFC9E" box="[1344,1409,764,789]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFACDFD6DFA1EFC9E" bold="true" box="[1344,1409,764,789]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
is most closely related to
<taxonomicName id="4C3A67DAFFCA340BFE2AFCB1FD59FCB3" authority="Koehler, 1898" authorityName="Koehler" authorityYear="1898" box="[423,710,799,824]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFE2AFCB1FD85FCB3" box="[423,538,800,824]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
<bibRefCitation id="EFAB61A8FFCA340BFDA9FC8EFD59FCB3" author="Koehler" box="[548,710,799,824]" pageId="9" pageNumber="10" refString="Koehler, R. (1898) Echinides et Ophiures provenant des campagnes du yacht l' Hirondelle (Golfe de Gascogne, Acores, Terre- Nueve, Acores). Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco, 12, 1 - 78." type="journal article" year="1898">Koehler, 1898</bibRefCitation>
</taxonomicName>
and
<taxonomicName id="4C3A67DAFFCA340BFC8FFCB1FBB9FCB3" authority="Duncan, 1887" authorityName="Duncan" authorityYear="1887" box="[770,1062,800,824]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFC8FFCB1FCE7FCB3" box="[770,888,800,824]" italics="true" pageId="9" pageNumber="10">O. nodosa</emphasis>
<bibRefCitation id="EFAB61A8FFCA340BFC0FFCB1FBB9FCB3" author="Duncan" box="[898,1062,800,824]" pageId="9" pageNumber="10" refString="Duncan, P. M. (1887) On the Ophiuridae of the Mergui Archipelago, collected for the Trustees of the Indian Museum, Calcutta, by Dr. John Anderson, F. R. S., Superintendent of the Museum. Zoological Journal of the Linnean Society, 21, 85 - 106. https: // doi. org / 10.1111 / j. 1096 - 3642.1887. tb 00382. x" type="journal article" year="1887">Duncan, 1887</bibRefCitation>
</taxonomicName>
, both from the Indian Ocean, in having prominent tubercle-shaped knobs on the dorsal arm plates (
<bibRefCitation id="EFAB61A8FFCA340BFC1AFCD5FBA9FCD7" author="Duncan" box="[919,1078,836,860]" pageId="9" pageNumber="10" refString="Duncan, P. M. (1887) On the Ophiuridae of the Mergui Archipelago, collected for the Trustees of the Indian Museum, Calcutta, by Dr. John Anderson, F. R. S., Superintendent of the Museum. Zoological Journal of the Linnean Society, 21, 85 - 106. https: // doi. org / 10.1111 / j. 1096 - 3642.1887. tb 00382. x" type="journal article" year="1887">Duncan 1887</bibRefCitation>
;
<bibRefCitation id="EFAB61A8FFCA340BFBCEFCD5FB7DFCD7" author="Koehler" box="[1091,1250,836,861]" pageId="9" pageNumber="10" refString="Koehler, R. (1898) Echinides et Ophiures provenant des campagnes du yacht l' Hirondelle (Golfe de Gascogne, Acores, Terre- Nueve, Acores). Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco, 12, 1 - 78." type="journal article" year="1898">Koehler 1898</bibRefCitation>
;
<bibRefCitation id="EFAB61A8FFCA340BFB7DFCD5FE80FC0B" author="Clark" pageId="9" pageNumber="10" refString="Clark, A. M. &amp; Rowe, F. E. W. (1971) Monograph of shallow-water Indo-West Pacific echinoderms: i-vii. Trustees of the British Museum (Natural History), London, 238 pp." type="book" year="1971">A. M. Clark &amp; Rowe 1971</bibRefCitation>
;
<bibRefCitation id="EFAB61A8FFCA340BFEA3FCF6FE27FC0B" author="Baker" box="[302,440,871,896]" pageId="9" pageNumber="10" refString="Baker, A. N. (1979) Some Ophiuroidea from the Tasman Sea and adjacent waters. New Zealand Journal of Zoology, 6, 21 - 51. https: // doi. org / 10.1080 / 03014223.1979.10428345" type="journal article" year="1979">Baker 1979</bibRefCitation>
;
<bibRefCitation id="EFAB61A8FFCA340BFE45FCF9FDECFC0B" author="Fujita" box="[456,627,871,896]" pageId="9" pageNumber="10" refString="Fujita, T. (2016) Brittle stars of Ophiodermatidae and Ophiolepididae (Echinodermata: Ophiuroidea: Ophiurida: Ophiurina) collected from the Singapore Strait. The Raffles Bulletin of Zoology Supplement, 34, 619 - 626." type="journal article" year="2016">T. Fujita 2016</bibRefCitation>
). The present new species can be distinguished from the two related species by shapes, sizes and arrangements of disc scales, radial shields, and oral shields, locations of supplementary small plates besides dorsal arm plates, separated lateral arm plates, and number of arm spines. These characters are compared among three related species as follows:
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AFB8DFF70FA87" blockId="9.[151,1436,1052,1760]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFB8DFEE7FBBF" box="[199,376,1052,1076]" italics="true" pageId="9" pageNumber="10">(1) Disc scales.</emphasis>
On the aboral surface of the disc, the larger disc scales of
<taxonomicName id="4C3A67DAFFCA340BFBA6FB8DFB36FBBF" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[1067,1193,1052,1076]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFBA6FB8DFB36FBBF" box="[1067,1193,1052,1076]" italics="true" pageId="9" pageNumber="10">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFB39FB8DFB6AFBBE" box="[1204,1269,1052,1077]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFB39FB8DFB6AFBBE" bold="true" box="[1204,1269,1052,1077]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
are 38 times longer than the smaller scales in diameter, whereas those of
<taxonomicName id="4C3A67DAFFCA340BFCB3FBD1FC31FBD3" authorityName="Koehler" authorityYear="1898" box="[830,942,1088,1112]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFCB3FBD1FC31FBD3" box="[830,942,1088,1112]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
are 24 times, and those of
<taxonomicName id="4C3A67DAFFCA340BFB63FBD1FAC4FBD3" authorityName="Duncan" authorityYear="1887" box="[1262,1371,1088,1112]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFB63FBD1FAC4FBD3" box="[1262,1371,1088,1112]" italics="true" pageId="9" pageNumber="10">O nodosa</emphasis>
</taxonomicName>
more than 10 times longer. Just distal to radial shields, a trio of elongated scales is present in
<taxonomicName id="4C3A67DAFFCA340BFBE3FBF5FB74FBF7" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[1134,1259,1124,1148]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFBE3FBF5FB74FBF7" box="[1134,1259,1124,1148]" italics="true" pageId="9" pageNumber="10">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFB7EFBF5FAADFBF6" box="[1267,1330,1124,1149]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFB7EFBF5FAADFBF6" bold="true" box="[1267,1330,1124,1149]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
, whereas five distinct scales are present in a
<typeStatus id="5481A2FBFFCA340BFD90FB19FDD2FB2B" box="[541,589,1160,1184]" pageId="9" pageNumber="10">type</typeStatus>
of
<taxonomicName id="4C3A67DAFFCA340BFDFFFB19FD7DFB2B" authorityName="Koehler" authorityYear="1898" box="[626,738,1160,1184]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFDFFFB19FD7DFB2B" box="[626,738,1160,1184]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
(in the Zoological Survey of
<collectingCountry id="F32D5CC9FFCA340BFBA6FB16FBFAFB2B" box="[1067,1125,1159,1184]" name="India" pageId="9" pageNumber="10">India</collectingCountry>
collections in Calcatta, ZSI 287/7, pers. comm. Dr. Tim OHara of Museum
<collectingRegion id="49FED2BBFFCA340BFD36FB3DFC85FB4E" box="[699,794,1196,1221]" country="Australia" name="Victoria" pageId="9" pageNumber="10">Victoria</collectingRegion>
), and numerous smaller scales present in
<taxonomicName id="4C3A67DAFFCA340BFB63FB3DFAFDFB4F" authorityName="Duncan" authorityYear="1887" box="[1262,1378,1196,1220]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFB63FB3DFAFDFB4F" box="[1262,1378,1196,1220]" italics="true" pageId="9" pageNumber="10">O. nodosa</emphasis>
</taxonomicName>
. The larger disc scales of
<taxonomicName id="4C3A67DAFFCA340BFE0DFB41FE61FB6C" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[384,510,1232,1255]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFE0DFB41FE61FB6C" box="[384,510,1232,1255]" italics="true" pageId="9" pageNumber="10">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFD8BFB5EFDD8FB63" box="[518,583,1231,1256]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFD8BFB5EFDD8FB63" bold="true" box="[518,583,1231,1256]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
and
<taxonomicName id="4C3A67DAFFCA340BFD0DFB41FD6DFB63" authorityName="Koehler" authorityYear="1898" box="[640,754,1232,1256]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFD0DFB41FD6DFB63" box="[640,754,1232,1256]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
are somewhat concave, but those of
<taxonomicName id="4C3A67DAFFCA340BFB14FB41FA92FB63" authorityName="Duncan" authorityYear="1887" box="[1177,1293,1232,1256]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFB14FB41FA92FB63" box="[1177,1293,1232,1256]" italics="true" pageId="9" pageNumber="10">O. nodosa</emphasis>
</taxonomicName>
are strongly convex.
</paragraph>
</subSubSection>
<subSubSection id="C3204FD2FFCA3408FF4AFA89FE9AFEEE" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10" type="description">
<paragraph id="8B851C59FFCA340BFF4AFA89FEF2FAF3" blockId="9.[151,1436,1052,1760]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFA89FDE0FAA4" box="[199,639,1304,1328]" italics="true" pageId="9" pageNumber="10">
(2) Radial shields.
<taxonomicName id="4C3A67DAFFCA340BFE2CFA89FDE0FAA4" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[417,639,1304,1328]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">Ophiolepis cavitata</taxonomicName>
</emphasis>
<taxonomicNameLabel id="A27D7D30FFCA340BFD04FA86FD55FABB" box="[649,714,1303,1328]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFD04FA86FD55FABB" bold="true" box="[649,714,1303,1328]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
and
<taxonomicName id="4C3A67DAFFCA340BFC8BFA89FCE7FABB" authorityName="Koehler" authorityYear="1898" box="[774,888,1304,1328]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFC8BFA89FCE7FABB" box="[774,888,1304,1328]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
share similar radial shields, 2 times wider than long, widely separated by flat disc scales. Radial shields of
<taxonomicName id="4C3A67DAFFCA340BFCC0FAADFC5CFADF" authorityName="Duncan" authorityYear="1887" box="[845,963,1340,1364]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFCC0FAADFC5CFADF" box="[845,963,1340,1364]" italics="true" pageId="9" pageNumber="10">O. nodosa</emphasis>
</taxonomicName>
are longer than wide and separated by a convex large scale.
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AFA15FDA7FA4B" blockId="9.[151,1436,1052,1760]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFA15FE1FFA17" box="[199,384,1412,1436]" italics="true" pageId="9" pageNumber="10">(3) Oral shields.</emphasis>
Oral shields of
<taxonomicName id="4C3A67DAFFCA340BFDB9FA15FD2FFA17" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[564,688,1412,1436]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFDB9FA15FD2FFA17" box="[564,688,1412,1436]" italics="true" pageId="9" pageNumber="10">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFD35FA15FD68FA16" box="[696,759,1412,1437]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFD35FA15FD68FA16" bold="true" box="[696,759,1412,1437]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
are partly concave, while those of
<taxonomicName id="4C3A67DAFFCA340BFB0CFA15FB6DFA17" authorityName="Koehler" authorityYear="1898" box="[1153,1266,1412,1436]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFB0CFA15FB6DFA17" box="[1153,1266,1412,1436]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
and
<taxonomicName id="4C3A67DAFFCA340BFAA5FA15FA03FA17" authorityName="Duncan" authorityYear="1887" box="[1320,1436,1412,1436]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFAA5FA15FA03FA17" box="[1320,1436,1412,1436]" italics="true" pageId="9" pageNumber="10">O. nodosa</emphasis>
</taxonomicName>
are not concave, having flat surfaces.
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AFA5DFB5CF98C" blockId="9.[151,1436,1052,1760]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AFA5DFE78FA6F" box="[199,487,1484,1508]" italics="true" pageId="9" pageNumber="10">(4) Supplementary plates.</emphasis>
Two small supplementary plates accompany each dorsal arm plate within proximal 3 arm segments in
<taxonomicName id="4C3A67DAFFCA340BFED8FA61FE4EF98C" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[341,465,1520,1543]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFED8FA61FE4EF98C" box="[341,465,1520,1543]" italics="true" pageId="9" pageNumber="10">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFE54FA7EFD87F983" box="[473,536,1519,1544]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFE54FA7EFD87F983" bold="true" box="[473,536,1519,1544]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
whereas those of
<taxonomicName id="4C3A67DAFFCA340BFD6FFA61FCCDF983" authorityName="Koehler" authorityYear="1898" box="[738,850,1520,1544]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFD6FFA61FCCDF983" box="[738,850,1520,1544]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
are present throughout the arms.
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AF985FC17F913" blockId="9.[151,1436,1052,1760]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AF985FE57F9A7" box="[199,456,1556,1580]" italics="true" pageId="9" pageNumber="10">(5) Lateral arm plates.</emphasis>
A pair of lateral arm plates are in contact after 9th arm segments on the aboral side of the arm in
<taxonomicName id="4C3A67DAFFCA340BFE98F9A9FE0CF9C4" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[277,403,1592,1615]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFE98F9A9FE0CF9C4" box="[277,403,1592,1615]" italics="true" pageId="9" pageNumber="10">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFE11F9A6FE42F9DB" box="[412,477,1591,1616]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFE11F9A6FE42F9DB" bold="true" box="[412,477,1591,1616]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
and those of
<taxonomicName id="4C3A67DAFFCA340BFDF1F9A9FD71F9DB" authorityName="Koehler" authorityYear="1898" box="[636,750,1592,1616]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFDF1F9A9FD71F9DB" box="[636,750,1592,1616]" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
are separated throughout the arms. These characters of arm plates in
<taxonomicName id="4C3A67DAFFCA340BFE8EF9CDFEE6F9FF" authorityName="Duncan" authorityYear="1887" box="[259,377,1628,1652]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFE8EF9CDFEE6F9FF" box="[259,377,1628,1652]" italics="true" pageId="9" pageNumber="10">O. nodosa</emphasis>
</taxonomicName>
are not mentioned in the original description, but an illustration shows that supplementary small plates are present for at least 5 arm segments (
<bibRefCitation id="EFAB61A8FFCA340BFD52F911FCE4F913" author="Duncan" box="[735,891,1664,1688]" pageId="9" pageNumber="10" refString="Duncan, P. M. (1887) On the Ophiuridae of the Mergui Archipelago, collected for the Trustees of the Indian Museum, Calcutta, by Dr. John Anderson, F. R. S., Superintendent of the Museum. Zoological Journal of the Linnean Society, 21, 85 - 106. https: // doi. org / 10.1111 / j. 1096 - 3642.1887. tb 00382. x" type="journal article" year="1887">Duncan 1887</bibRefCitation>
).
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AF935FE75F954" blockId="9.[151,1436,1052,1760]" pageId="9" pageNumber="10">
<emphasis id="B94EC04BFFCA340BFF4AF935FEE8F937" box="[199,375,1700,1724]" italics="true" pageId="9" pageNumber="10">(6) Arm spines.</emphasis>
Number of arm spines on the proximal portion of the arms are
<quantity id="4CC2B1BCFFCA340BFBDCF935FBE1F936" box="[1105,1150,1700,1725]" metricMagnitude="-2" metricUnit="m" metricValue="7.62" pageId="9" pageNumber="10" unit="in" value="3.0">3 in</quantity>
<taxonomicName id="4C3A67DAFFCA340BFB0BF935FB60F937" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[1158,1279,1700,1724]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFCA340BFB0BF935FB60F937" box="[1158,1279,1700,1724]" italics="true" pageId="9" pageNumber="10">O cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFCA340BFA8BF935FAD9F936" box="[1286,1350,1700,1725]" pageId="9" pageNumber="10" rank="species">
<emphasis id="B94EC04BFFCA340BFA8BF935FAD9F936" bold="true" box="[1286,1350,1700,1725]" pageId="9" pageNumber="10">n. sp.</emphasis>
</taxonomicNameLabel>
and
<taxonomicName id="4C3A67DAFFCA340BFA0CF935FF7AF96B" authorityName="Koehler" authorityYear="1898" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFA0CF935FF7AF96B" italics="true" pageId="9" pageNumber="10">O. rugosa</emphasis>
</taxonomicName>
, and
<quantity id="4CC2B1BCFFCA340BFEAFF956FEF6F96B" box="[290,361,1735,1760]" metricMagnitude="-1" metricUnit="m" metricValue="1.27" metricValueMax="1.524" metricValueMin="1.016" pageId="9" pageNumber="10" unit="in" value="5.0" valueMax="6.0" valueMin="4.0">46 in</quantity>
<taxonomicName id="4C3A67DAFFCA340BFEFDF959FE7CF96B" authorityName="Duncan" authorityYear="1887" box="[368,483,1736,1760]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="nodosa">
<emphasis id="B94EC04BFFCA340BFEFDF959FE7CF96B" box="[368,483,1736,1760]" italics="true" pageId="9" pageNumber="10">O. nodosa</emphasis>
</taxonomicName>
.
</paragraph>
<paragraph id="8B851C59FFCA340BFF4AF89EFC9FF8FB" blockId="9.[151,1436,1807,2013]" pageId="9" pageNumber="10">
Recently, Pineda-Enríquez
<emphasis id="B94EC04BFFCA340BFE77F880FDACF8A3" box="[506,563,1808,1832]" italics="true" pageId="9" pageNumber="10">et al.</emphasis>
(in press) described three species of
<emphasis id="B94EC04BFFCA340BFC5BF881FBC7F8A3" box="[982,1112,1808,1832]" italics="true" pageId="9" pageNumber="10">
<taxonomicName id="4C3A67DAFFCA340BFC5BF881FBCBF8A3" box="[982,1108,1808,1832]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="genus">Ophiolepis</taxonomicName>
.
</emphasis>
One of them is related to
<taxonomicName id="4C3A67DAFFCA340BFA0CF881FF6EF8C7" authorityName="Okanishi &amp; Fujita" authorityYear="2018" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="cavitata">
<emphasis id="B94EC04BFFCA340BFA0CF881FF6EF8C7" italics="true" pageId="9" pageNumber="10">O. cavitata</emphasis>
</taxonomicName>
but distinguished by having a large oval scale, which cover almost oral interradial surface, and having not concaved oral shields (Pineda-Enríquez
<emphasis id="B94EC04BFFCA340BFDD7F8C8FD0DF8FB" box="[602,658,1880,1904]" italics="true" pageId="9" pageNumber="10">et al.</emphasis>
in press).
</paragraph>
<paragraph id="8B851C59FFCA3408FF4AF8EDFE9AFEEE" blockId="9.[151,1436,1807,2013]" lastBlockId="10.[151,1436,151,357]" lastPageId="10" lastPageNumber="11" pageId="9" pageNumber="10">
<bibRefCitation id="EFAB61A8FFCA340BFF4AF8EDFEC3F81F" author="Baker" box="[199,348,1916,1941]" pageId="9" pageNumber="10" refString="Baker, A. N. (1979) Some Ophiuroidea from the Tasman Sea and adjacent waters. New Zealand Journal of Zoology, 6, 21 - 51. https: // doi. org / 10.1080 / 03014223.1979.10428345" type="journal article" year="1979">Baker (1979)</bibRefCitation>
referred a single specimen of
<taxonomicName id="4C3A67DAFFCA340BFD3AF8EDFCADF81F" box="[695,818,1916,1940]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="genus">
<emphasis id="B94EC04BFFCA340BFD3AF8EDFCADF81F" box="[695,818,1916,1940]" italics="true" pageId="9" pageNumber="10">Ophiolepis</emphasis>
</taxonomicName>
collected in
<quantity id="4CC2B1BCFFCA340BFC48F8EDFC60F81F" box="[965,1023,1916,1940]" metricMagnitude="1" metricUnit="m" metricValue="7.3" pageId="9" pageNumber="10" unit="m" value="73.0">73 m</quantity>
deep of northeastern
<collectingCountry id="F32D5CC9FFCA340BFB7AF8EDFAC2F81E" box="[1271,1373,1916,1941]" name="Australia" pageId="9" pageNumber="10">Australia</collectingCountry>
(AM
<accessionNumber id="946981BAFFCA340BFF1AF831FF76F833" box="[151,233,1952,1976]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/J10989" pageId="9" pageNumber="10" type="EnaNcbi">J10989</accessionNumber>
) to
<taxonomicName id="4C3A67DAFFCA340BFE9BF831FD12F833" authority="Koehler, 1898" authorityName="Koehler" authorityYear="1898" box="[278,653,1952,1977]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="9" pageNumber="10" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFCA340BFE9BF831FE79F833" box="[278,486,1952,1976]" italics="true" pageId="9" pageNumber="10">Ophiolepis rugosa</emphasis>
<bibRefCitation id="EFAB61A8FFCA340BFE63F831FD12F833" author="Koehler" box="[494,653,1952,1977]" pageId="9" pageNumber="10" refString="Koehler, R. (1898) Echinides et Ophiures provenant des campagnes du yacht l' Hirondelle (Golfe de Gascogne, Acores, Terre- Nueve, Acores). Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco, 12, 1 - 78." type="journal article" year="1898">Koehler, 1898</bibRefCitation>
</taxonomicName>
which is known from southwestern
<collectingCountry id="F32D5CC9FFCA340BFBA5F831FB08F832" box="[1064,1175,1952,1977]" name="Sri Lanka" pageId="9" pageNumber="10">Sri Lanka</collectingCountry>
(
<bibRefCitation id="EFAB61A8FFCA340BFB2BF831FADAF833" author="Koehler" box="[1190,1349,1952,1977]" pageId="9" pageNumber="10" refString="Koehler, R. (1898) Echinides et Ophiures provenant des campagnes du yacht l' Hirondelle (Golfe de Gascogne, Acores, Terre- Nueve, Acores). Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco, 12, 1 - 78." type="journal article" year="1898">Koehler 1898</bibRefCitation>
).
<bibRefCitation id="EFAB61A8FFCA340BFAD4F831FF7EF857" author="Baker" pageId="9" pageNumber="10" refString="Baker, A. N. (1979) Some Ophiuroidea from the Tasman Sea and adjacent waters. New Zealand Journal of Zoology, 6, 21 - 51. https: // doi. org / 10.1080 / 03014223.1979.10428345" type="journal article" year="1979">Baker (1979)</bibRefCitation>
doubted that this specimen represented an undescribed species, even though it differed from the original description of
<taxonomicName id="4C3A67DAFFC93408FEB2FF09FE2DFF3B" authorityName="Koehler" authorityYear="1898" box="[319,434,152,176]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="10" pageNumber="11" phylum="Echinodermata" rank="species" species="rugosa">
<emphasis id="B94EC04BFFC93408FEB2FF09FE2DFF3B" box="[319,434,152,176]" italics="true" pageId="10" pageNumber="11">O. rugosa</emphasis>
</taxonomicName>
in having small supplementary plates on the first three arm segments, and lateral arm plates in contact after 9th arm segments (
<bibRefCitation id="EFAB61A8FFC93408FD0DFF2DFCBCFF5F" author="Koehler" box="[640,803,188,213]" pageId="10" pageNumber="11" refString="Koehler, R. (1898) Echinides et Ophiures provenant des campagnes du yacht l' Hirondelle (Golfe de Gascogne, Acores, Terre- Nueve, Acores). Resultats des campagnes scientifiques accomplies sur son yacht par Albert Ier, prince souverain de Monaco, 12, 1 - 78." type="journal article" year="1898">Koehler 1898</bibRefCitation>
;
<bibRefCitation id="EFAB61A8FFC93408FCBEFF2DFC22FF5F" author="Baker" box="[819,957,188,213]" pageId="10" pageNumber="11" refString="Baker, A. N. (1979) Some Ophiuroidea from the Tasman Sea and adjacent waters. New Zealand Journal of Zoology, 6, 21 - 51. https: // doi. org / 10.1080 / 03014223.1979.10428345" type="journal article" year="1979">Baker 1979</bibRefCitation>
). In this study, our two specimens of
<taxonomicName id="4C3A67DAFFC93408FA0CFF2DFF6EFF7C" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="10" pageNumber="11" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFC93408FA0CFF2DFF6EFF7C" italics="true" pageId="10" pageNumber="11">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFC93408FF75FF4EFEA9FF73" box="[248,310,223,248]" pageId="10" pageNumber="11" rank="species">
<emphasis id="B94EC04BFFC93408FF75FF4EFEA9FF73" bold="true" box="[248,310,223,248]" pageId="10" pageNumber="11">n. sp.</emphasis>
</taxonomicNameLabel>
(RUMF-ZE-02006 and RUMF-ZE-02007) possesses the same features as those of
<bibRefCitation id="EFAB61A8FFC93408FB54FF4EFAF2FF73" author="Baker" box="[1241,1389,223,248]" pageId="10" pageNumber="11" refString="Baker, A. N. (1979) Some Ophiuroidea from the Tasman Sea and adjacent waters. New Zealand Journal of Zoology, 6, 21 - 51. https: // doi. org / 10.1080 / 03014223.1979.10428345" type="journal article" year="1979">Baker (1979)</bibRefCitation>
and his single specimen (AM
<accessionNumber id="946981BAFFC93408FE45FE95FD85FE97" box="[456,538,260,284]" httpUri="https://www.ebi.ac.uk/ena/browser/api/embl/J10989" pageId="10" pageNumber="11" type="EnaNcbi">J10989</accessionNumber>
) may be conspecific with
<taxonomicName id="4C3A67DAFFC93408FCDBFE95FC48FE97" authority="Okanishi &amp; Fujita, 2018" authorityName="Okanishi &amp; Fujita" authorityYear="2018" box="[854,983,260,284]" class="Ophiuroidea" family="Ophiolepididae" genus="Ophiolepis" higherTaxonomySource="GBIF" kingdom="Animalia" order="Ophiurida" pageId="10" pageNumber="11" phylum="Echinodermata" rank="species" species="cavitata" status="sp. nov.">
<emphasis id="B94EC04BFFC93408FCDBFE95FC48FE97" box="[854,983,260,284]" italics="true" pageId="10" pageNumber="11">O. cavitata</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A27D7D30FFC93408FC6FFE95FBBAFE96" box="[994,1061,260,285]" pageId="10" pageNumber="11" rank="species">
<emphasis id="B94EC04BFFC93408FC6FFE95FBBAFE96" bold="true" box="[994,1061,260,285]" pageId="10" pageNumber="11">n. sp.</emphasis>
</taxonomicNameLabel>
However, we here refrain from including this specimen to our new species concept because it is merely based on a short description and some line drawings.
</paragraph>
</subSubSection>
</treatment>
</document>