treatments-xml/data/3A/3F/D6/3A3FD645BD254B44A235F0F6B141E714.xml

<document id="4152323E5700DDE0C89CE97673718CFB" ID-CLB-Dataset="295392" ID-DOI="10.5281/zenodo.11105838" ID-GBIF-Dataset="ea89bbc9-934a-4ca6-b64b-1c1a146cb2f5" ID-ISSN="0068-547X" ID-Zenodo-Dep="11105838" IM.bibliography_approvedBy="valdenar" IM.illustrations_approvedBy="valdenar" IM.materialsCitations_approvedBy="valdenar" IM.metadata_approvedBy="valdenar" IM.tables_approvedBy="valdenar" IM.taxonomicNames_approvedBy="valdenar" IM.treatmentCitations_approvedBy="valdenar" IM.treatments_approvedBy="valdenar" checkinTime="1714051480623" checkinUser="felipe" docAuthor="Prokofiev, Artem M. &amp; Iwamoto, Tomio" docDate="2020" docId="3A3FD645BD254B44A235F0F6B141E714" docLanguage="en" docName="ProcCalifAcadSci.66.9.231-273.pdf" docOrigin="Proceedings of the California Academy of Sciences 66 (9)" docStyle="DocumentStyle:E411DA009AF5E7F9A7E023431E2B7D5B.1:ProcCalifAcadSci.2015-.journal_article" docStyleId="E411DA009AF5E7F9A7E023431E2B7D5B" docStyleName="ProcCalifAcadSci.2015-.journal_article" docStyleVersion="1" docTitle="Coelorinchus amirantensis Iwamoto, Golani, Baranes, and Goren 2006" docType="treatment" docVersion="5" lastPageNumber="238" masterDocId="C606AE3DBD264B43A24EF574B365E460" masterDocTitle="Revision of the Grenadier Genus Coelorinchus (Teleostei: Macrouridae) from the Mascarene Ridge, Western Indian Ocean, with Description of Two New Species" masterLastPageNumber="273" masterPageNumber="231" pageNumber="234" updateTime="1714670913760" updateUser="ExternalLinkService">
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<mods:title id="98FA6151E8C50E278AAFD9783B323598">Revision of the Grenadier Genus Coelorinchus (Teleostei: Macrouridae) from the Mascarene Ridge, Western Indian Ocean, with Description of Two New Species</mods:title>
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<mods:namePart id="AD35A04BE38E5BDE403E0DDD0805DD78">Prokofiev, Artem M.</mods:namePart>
<mods:affiliation id="079603EB17C4D33B1C40F9CC1198B391">A. N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences, Leninskii prospect 33, Moscow 119071, Russia; Email: prokartster @ gmail. com; &amp; P. P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Nakhimovsky prospect 36, Moscow 117218, Russia;</mods:affiliation>
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<mods:namePart id="B2E92315AA7BFB2AD9B7D2D9BD8C80D3">Iwamoto, Tomio</mods:namePart>
<mods:affiliation id="968736D225FF261A3B78DF9CAD4798A6">Section of Ichthyology, Institute of Biodiversity Science and Sustainability, California Academy of Sciences,</mods:affiliation>
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<mods:title id="7F7DC362EC6B68350EE840D54343C210">Proceedings of the California Academy of Sciences</mods:title>
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<mods:date id="1D739ED73291356C2D8D7243B3E1CC41">2020</mods:date>
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<heading id="E961D03FBD254B40A235F0F6B0C7E1FA" box="[123,930,1410,1434]" fontSize="10" level="2" pageId="3" pageNumber="234" reason="4">
<taxonomicName id="75961CD0BD254B40A235F0F6B0C7E1FA" ID-CoL="WSQZ" authority="Iwamoto, Golani, Baranes, and Goren, 2006" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[123,930,1410,1434]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="3" pageNumber="234" phylum="Chordata" rank="species" species="amirantensis">
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<emphasis id="80E2BB41BD254B40A235F0F6B2C1E1FA" bold="true" box="[123,420,1410,1434]" italics="true" pageId="3" pageNumber="234">Coelorinchus amirantensis</emphasis>
Iwamoto, Golani, Baranes, and Goren, 2006
</emphasis>
</taxonomicName>
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<subSubSection id="FA8C34D8BD254B47A235F0D6B09FE5F3" lastPageId="4" lastPageNumber="235" pageId="3" pageNumber="234" type="description">
<paragraph id="B2296753BD254B40A235F0D6B7F0E199" blockId="3.[123,1174,1410,1725]" pageId="3" pageNumber="234">
<figureCitation id="2AAD7BD6BD254B40A235F0D6B383E1D8" box="[123,230,1441,1464]" captionStart="FIGURE" captionStartId="21.[155,167,1629,1649]" captionTargetBox="[120,1164,217,1598]" captionTargetId="figure-300@21.[120,1176,216,1608]" captionTargetPageId="21" captionText="FIGURE 2. Coelorinchus spp., habitus, lateral view. A. C. amirantensis, IOM M.008–002, paratype, 108 mm HL. B. C. mascarenus, IOM M.011–007, holotype, 91 mm HL. C. C. paraboliceps, IOM M.004–003, holotype, 120 mm HL. D. C. yurii, IOM M.003–017, non-type specimen, c.156 mm HL." figureDoi="http://doi.org/10.5281/zenodo.11105842" httpUri="https://zenodo.org/record/11105842/files/figure.png" pageId="3" pageNumber="234">Figures 2A</figureCitation>
, 
<figureCitation id="2AAD7BD6BD254B40A2BDF0D5B39AE1D7" box="[243,255,1441,1463]" captionStart="FIGURE" captionStartId="22.[155,167,1541,1561]" captionTargetBox="[120,1176,216,1522]" captionTargetId="figure-190@22.[120,1176,216,1522]" captionTargetPageId="22" captionText="FIGURE 3. Coelorinchus amirantensis, paratypes, IOM M.007–001, 126 mm HL (A, B), IOM M.008–002, 108 mm HL (C). A. Lateral view of head. B, C. Dorsal view of head." figureDoi="http://doi.org/10.5281/zenodo.11105844" httpUri="https://zenodo.org/record/11105844/files/figure.png" pageId="3" pageNumber="234">3</figureCitation>
, 
<figureCitation id="2AAD7BD6BD254B40A342F0D6B27DE1D8" box="[268,280,1442,1464]" captionStart="FIGURE" captionStartId="23.[155,167,1061,1081]" captionTargetBox="[120,1176,216,1041]" captionTargetId="figure-196@23.[120,1176,216,1041]" captionTargetPageId="23" captionText="FIGURE 4. Coelorinchus amirantensis, paratypes, ventral view of head. A. IOM M.007–001, 126 mm HL. B. IOM M.008–002, 108 mm HL. C. IOM M.010–009, 80 mm HL." figureDoi="http://doi.org/10.5281/zenodo.11105846" httpUri="https://zenodo.org/record/11105846/files/figure.png" pageId="3" pageNumber="234">4</figureCitation>
, 
<figureCitation id="2AAD7BD6BD254B40A36AF0D6B23BE1D7" box="[292,350,1441,1464]" captionStart="FIGURE" captionStartId="24.[155,167,1553,1573]" captionTargetBox="[132,1164,229,1524]" captionTargetId="figure-538@24.[120,1176,216,1538]" captionTargetPageId="24" captionText="FIGURE 5. Coelorinchus spp., isolated scales from predorsal region (A, D, G, J), from flank between first dorsal-fin origin and lateral line (B, E, H, K), and from flank between second dorsal-fin origin and lateral line (C, F, I, L) (stained by alizarine red S for contrast). A–C. C. amirantensis, IOM M.007–001, paratype. D–F. C. mascarenus, IOM M.011–007, holotype. G–I. C. paraboliceps, IOM M.004–003, holotype. J–L. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, J, 2.5 mm. B, C, E, F, H, K, 3.0 mm. D, 1.5 mm. G, 2.0 mm. I, L, 3.5 mm. Scale bar is common for E and F." figureDoi="http://doi.org/10.5281/zenodo.11105848" httpUri="https://zenodo.org/record/11105848/files/figure.png" pageId="3" pageNumber="234">5A–C</figureCitation>
, 
<figureCitation id="2AAD7BD6BD254B40A324F0D5B2C1E1D8" box="[362,420,1441,1464]" captionStart="FIGURE" captionStartId="25.[155,167,1312,1332]" captionTargetBox="[120,1175,216,1288]" captionTargetId="figure-350@25.[120,1176,216,1298]" captionTargetPageId="25" captionText="FIGURE 6. Coelorinchus spp., squamation of interorbital region (A, C, E) and of flank between mid-base of first dorsal fin and lateral line (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, C, E, 2.5 mm. B, D, F, 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105850" httpUri="https://zenodo.org/record/11105850/files/figure.png" pageId="3" pageNumber="234">6A–B</figureCitation>
, 
<figureCitation id="2AAD7BD6BD254B40A3FEF0D6B28FE1D8" box="[432,490,1442,1464]" captionStart="FIGURE" captionStartId="26.[155,167,1325,1345]" captionTargetBox="[129,1170,224,1301]" captionTargetId="figure-347@26.[120,1176,216,1310]" captionTargetPageId="26" captionText="FIGURE 7. Coelorinchus spp., squamation of flank between origin of second dorsal fin and lateral line (A, C, E) and of tail behind anterior third of second dorsal-fin base (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105852" httpUri="https://zenodo.org/record/11105852/files/figure.png" pageId="3" pageNumber="234">7A–B</figureCitation>
, 
<figureCitation id="2AAD7BD6BD254B40A3B8F0D5B167E1D7" box="[502,514,1441,1463]" captionStart="FIGURE" captionStartId="27.[155,167,1082,1102]" captionTargetBox="[120,1175,217,1066]" captionTargetId="figure-199@27.[120,1176,216,1066]" captionTargetPageId="27" captionText="FIGURE 8. Coelorinchus amirantensis, IOM M.009–010, juvenile paratype, 41 mm HL. A. Dorsal view of head. B. Ventral view of head. C. Habitus, lateral view." figureDoi="http://doi.org/10.5281/zenodo.11105854" httpUri="https://zenodo.org/record/11105854/files/figure.png" pageId="3" pageNumber="234">8</figureCitation>
, 
<figureCitation id="2AAD7BD6BD254B40A041F0D5B17EE1D7" box="[527,539,1441,1463]" captionStart="FIGURE" captionStartId="27.[155,167,1665,1685]" captionTargetBox="[130,1168,1167,1640]" captionTargetId="figure-200@27.[120,1176,1158,1654]" captionTargetPageId="27" captionText="FIGURE 9. Coelorinchus amirantensis, IOM M.009–010, juvenile paratype, 41 mm HL, isolated scales from predorsal region (A) and from flank between mid-base of first dorsal fin and lateral line (B). Scale bars: 0.5 mm" figureDoi="http://doi.org/10.5281/zenodo.11105856" httpUri="https://zenodo.org/record/11105856/files/figure.png" pageId="3" pageNumber="234">9</figureCitation>
. 
<taxonomicName id="75961CD0BD254B40A235F0B3B251E1BC" box="[123,308,1478,1500]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="3" pageNumber="234" phylum="Chordata" rank="species" species="undefined-A">
<emphasis id="80E2BB41BD254B40A235F0B3B399E1BC" box="[123,252,1479,1500]" italics="true" pageId="3" pageNumber="234">Coelorinchus</emphasis>
sp. A
</taxonomicName>
: 
<bibRefCitation id="D6071AA2BD254B40A30CF0B1B13AE1BC" author="SHCHERBACHEV, Y. N. &amp; N. V. PARIN &amp; N. P. PAKHORUKOV &amp; A. S. PIOTROVSKY" box="[322,607,1477,1500]" pageId="3" pageNumber="234" pagination="195 - 214" refId="ref17336" refString="SHCHERBACHEV, Y. N., N. V. PARIN, N. P. PAKHORUKOV, AND A. S. PIOTROVSKY. 1986. Mesobenthic and mesobenthopelagic fishes from submarine rises in the western Indian Ocean. Trudy Instituta Okeanologii AN SSSR 121: 195 - 214. [In Russian]" type="journal article" year="1986">Shcherbachev et al. 1986:201</bibRefCitation>
(
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, 
<geoCoordinate id="D7A20194BD254B40A0F0F0B2B06BE1BC" box="[702,782,1477,1500]" degrees="54" direction="east" minutes="23" orientation="longitude" pageId="3" pageNumber="234" precision="925" value="54.383335">54°23´E</geoCoordinate>
). 
<taxonomicName id="75961CD0BD254B40A235F090B004E198" authority="Iwamoto, Golani, Baranes, and Goren, 2006: 438" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityPageNumber="438" authorityYear="2006" box="[123,865,1506,1529]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="3" pageNumber="234" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD254B40A235F090B21AE199" box="[123,383,1508,1529]" italics="true" pageId="3" pageNumber="234">Coelorinchus amirantensis</emphasis>
Iwamoto, Golani, Baranes, and Goren, 2006:438
</taxonomicName>
, figs. 4–5 (original description,
</paragraph>
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<collectingCountry id="CA8127C3BD254B40A2E5F08BB277E276" box="[171,274,1535,1558]" name="Seychelles" pageId="3" pageNumber="234">Seychelles</collectingCountry>
and Mascarene Plateau, 
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).
</paragraph>
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.
</emphasis>
— 
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P.11600 (
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HL, tail incomplete), 
<collectingCountry id="CA8127C3BD254B40A166F357B0FFE25D" box="[808,922,1571,1597]" name="Seychelles" pageId="3" pageNumber="234">Seychelles</collectingCountry>
between 
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and Bijoutier islands, 
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in 
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, 
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/ 
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<emphasis id="80E2BB41BD254B40A0C2F332B07CE23D" box="[652,793,1606,1629]" italics="true" pageId="3" pageNumber="234">
<collectorName id="1F630285BD254B40A0C2F332B07CE23D" box="[652,793,1606,1629]" pageId="3" pageNumber="234">Sea Surveyor</collectorName>
</emphasis>
, 
<date id="C6284193BD254B40A169F330B0D0E23D" box="[807,949,1604,1629]" pageId="3" pageNumber="234" value="1998-12-17">
<collectingDate id="D66CB87BBD254B40A169F330B0D0E23D" box="[807,949,1604,1629]" pageId="3" pageNumber="234" value="1998-12-17">17 Dec. 1998</collectingDate>
</date>
, collector 
<collectorName id="1F630285BD254B40A669F330B7F3E23C" box="[1063,1174,1604,1629]" pageId="3" pageNumber="234">M. Goren.</collectorName>
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</paragraph>
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<materialsCitation id="02FE6D0EBD254B40A2E5F312B737E21D" box="[171,1106,1635,1661]" collectingDate="1998-12-17" collectionCode="TAU" collectorName="Sea Surveyor &amp; M. Goren." country="Seychelles" elevation="1900" location="Alphonse" pageId="3" pageNumber="234" specimenCount="1" typeStatus="paratype">
<emphasis id="80E2BB41BD254B40A2E5F312B27BE21D" box="[171,286,1638,1661]" italics="true" pageId="3" pageNumber="234">
<typeStatus id="6D2DD9F1BD254B40A2E5F312B272E21D" box="[171,279,1638,1661]" pageId="3" pageNumber="234" type="paratype">Paratypes</typeStatus>
.
</emphasis>
— 
<collectionCode id="D487FF96BD254B40A309F310B219E21C" box="[327,380,1636,1660]" country="Israel" httpUri="http://grbio.org/cool/ze71-842p" name="Tel-Aviv University" pageId="3" pageNumber="234">TAU</collectionCode>
P.11603 (
<quantity id="756ECAB6BD254B40A3A4F310B13DE21C" box="[490,600,1636,1661]" metricMagnitude="-1" metricUnit="m" metricValue="1.396" pageId="3" pageNumber="234" unit="mm" value="139.6">139.6 mm</quantity>
TL, 420+ mm TL), same data as for holotype
</materialsCitation>
. 
<materialsCitation id="02FE6D0EBD254B40A62FF310B1EDE2FD" collectionCode="CAS" country="Seychelles" pageId="3" pageNumber="234" specimenCode="CAS 223467" specimenCount="1" typeStatus="paratype">
<specimenCode id="E230CF28BD254B40A62FF310B3AEE2FD" collectionCode="CAS" country="USA" httpUri="http://biocol.org/urn:lsid:biocol.org:col:15690" lsid="urn:lsid:biocol.org:col:34700" name="California Academy of Sciences" pageId="3" pageNumber="234" type="Museum">CAS 223467</specimenCode>
(3, 96–126. 
<quantity id="756ECAB6BD254B40A304F3F0B2E3E2FC" box="[330,390,1668,1692]" metricMagnitude="-3" metricUnit="m" metricValue="5.0" pageId="3" pageNumber="234" unit="mm" value="5.0">5 mm</quantity>
HL, 285+– 
<quantity id="756ECAB6BD254B40A04FF3F0B13DE2FC" box="[513,600,1668,1693]" metricMagnitude="-1" metricUnit="m" metricValue="3.7399999999999998" pageId="3" pageNumber="234" unit="mm" value="374.0">374 mm</quantity>
TL)
</materialsCitation>
, 
<collectionCode id="D487FF96BD254B40A0DAF3F0B1ADE2FD" box="[660,712,1668,1693]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="3" pageNumber="234">IOM</collectionCode>
M.007–001 (
<quantity id="756ECAB6BD254B40A116F3F0B0ACE2FC" box="[856,969,1668,1693]" metricMagnitude="0" metricUnit="m" metricValue="1.126" pageId="3" pageNumber="234" unit="mm" value="1126.0">1, 126 mm</quantity>
HL, 424+ mm TL) and 
<materialsCitation id="02FE6D0EBD254B47A2E6F3D0B181E492" collectingDate="1977-09-02" collectionCode="IOM" country="Seychelles" elevation="1260" lastPageId="4" lastPageNumber="235" latitude="-8.44" longLatPrecision="920" longitude="59.483334" pageId="3" pageNumber="234" specimenCount="1" typeStatus="paratype">
<collectionCode id="D487FF96BD254B40A2E6F3D0B3B9E2DD" box="[168,220,1700,1725]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="3" pageNumber="234">IOM</collectionCode>
M.008–002 (
<quantity id="756ECAB6BD254B40A323F3D0B2BAE2DC" box="[365,479,1700,1725]" metricMagnitude="0" metricUnit="m" metricValue="1.108" pageId="3" pageNumber="234" unit="mm" value="1108.0">1, 108 mm</quantity>
HL, 343+ mm TL), Mascarene Ridge, 
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, 
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, 1300– 
<quantity id="756ECAB6BD224B47A235F5ADB3A8E492" box="[123,205,217,242]" metricMagnitude="3" metricUnit="m" metricValue="1.26" pageId="4" pageNumber="235" unit="m" value="1260.0">
<elevation id="39BB8060BD224B47A235F5ADB3A8E492" box="[123,205,217,242]" metricMagnitude="3" metricUnit="m" metricValue="1.26" pageId="4" pageNumber="235" unit="m" value="1260.0">1260 m</elevation>
</quantity>
, FRV 
<emphasis id="80E2BB41BD224B47A35BF5AFB207E493" box="[277,354,219,243]" italics="true" pageId="4" pageNumber="235">Fiolent</emphasis>
, cruise 7(9), trawl 52, 
<date id="C6284193BD224B47A012F5ADB181E492" box="[604,740,217,242]" pageId="4" pageNumber="235" value="1977-09-02">
<collectingDate id="D66CB87BBD224B47A012F5ADB181E492" box="[604,740,217,242]" pageId="4" pageNumber="235" value="1977-09-02">2 Sept. 1977</collectingDate>
</date>
</materialsCitation>
. 
<materialsCitation id="02FE6D0EBD224B47A0BDF5ADB20BE553" collectingDate="1976-11-09" collectionCode="IOM" country="Seychelles" elevation="1258" latitude="-8.133333" longLatPrecision="929" longitude="59.626667" pageId="4" pageNumber="235" specimenCount="1" typeStatus="paratype">
<collectionCode id="D487FF96BD224B47A0BDF5ADB042E492" box="[755,807,217,242]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="4" pageNumber="235">IOM</collectionCode>
M.005–020 (1, 
<quantity id="756ECAB6BD224B47A196F5ADB746E492" box="[984,1059,217,242]" metricMagnitude="-2" metricUnit="m" metricValue="7.9" pageId="4" pageNumber="235" unit="mm" value="79.0">79 mm</quantity>
HL, 250+ mm TL), Mascarene Ridge, 
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, 
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, 
<quantity id="756ECAB6BD224B47A0DEF58EB042E572" box="[656,807,250,275]" metricMagnitude="3" metricUnit="m" metricValue="1.258" metricValueMax="1.269" metricValueMin="1.247" pageId="4" pageNumber="235" unit="m" value="1258.0" valueMax="1269.0" valueMin="1247.0">
<elevation id="39BB8060BD224B47A0DEF58EB042E572" box="[656,807,250,275]" metricMagnitude="3" metricUnit="m" metricValue="1.258" metricValueMax="1.269" metricValueMin="1.247" pageId="4" pageNumber="235" unit="m" value="1258.0" valueMax="1269.0" valueMin="1247.0">1247–1269 m</elevation>
</quantity>
, FRV 
<emphasis id="80E2BB41BD224B47A13DF58FB777E573" box="[883,1042,251,275]" italics="true" pageId="4" pageNumber="235">Zvezda Kryma</emphasis>
, cruise 1/6, trawl 210, 
<date id="C6284193BD224B47A2A3F46EB20BE553" box="[237,366,282,307]" pageId="4" pageNumber="235" value="1976-11-09">
<collectingDate id="D66CB87BBD224B47A2A3F46EB20BE553" box="[237,366,282,307]" pageId="4" pageNumber="235" value="1976-11-09">9 Nov. 1976</collectingDate>
</date>
</materialsCitation>
. 
<materialsCitation id="02FE6D0EBD224B47A335F46EB0CBE533" collectingDate="1976-06-19" collectionCode="IOM" country="Seychelles" elevation="1050" latitude="-8.483334" longLatPrecision="1301" longitude="59.583332" pageId="4" pageNumber="235" specimenCount="1" typeStatus="paratype">
<collectionCode id="D487FF96BD224B47A335F46EB2CAE553" box="[379,431,282,307]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="4" pageNumber="235">IOM</collectionCode>
M.006–019 (1, 
<quantity id="756ECAB6BD224B47A014F46EB1C1E552" box="[602,676,282,307]" metricMagnitude="-2" metricUnit="m" metricValue="8.5" pageId="4" pageNumber="235" unit="mm" value="85.0">85 mm</quantity>
HL, 260+ mm TL), Mascarene Ridge, 
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, 
<geoCoordinate id="D7A20194BD224B47A235F44EB3B1E533" box="[123,212,313,339]" degrees="59" direction="east" minutes="35" orientation="longitude" pageId="4" pageNumber="235" precision="925" value="59.583332">59°35´E</geoCoordinate>
, 
<quantity id="756ECAB6BD224B47A2AFF44EB203E533" box="[225,358,314,339]" metricMagnitude="3" metricUnit="m" metricValue="1.05" metricValueMax="1.15" metricValueMin="0.95" pageId="4" pageNumber="235" unit="m" value="1050.0" valueMax="1150.0" valueMin="950.0">
<elevation id="39BB8060BD224B47A2AFF44EB203E533" box="[225,358,314,339]" metricMagnitude="3" metricUnit="m" metricValue="1.05" metricValueMax="1.15" metricValueMin="0.95" pageId="4" pageNumber="235" unit="m" value="1050.0" valueMax="1150.0" valueMin="950.0">950–1150 m</elevation>
</quantity>
, FRV 
<emphasis id="80E2BB41BD224B47A3E5F448B123E533" box="[427,582,316,340]" italics="true" pageId="4" pageNumber="235">Zvezda Kryma</emphasis>
, cruise 1/6, trawl 4, 
<date id="C6284193BD224B47A16FF44EB0CBE533" box="[801,942,314,339]" pageId="4" pageNumber="235" value="1976-06-19">
<collectingDate id="D66CB87BBD224B47A16FF44EB0CBE533" box="[801,942,314,339]" pageId="4" pageNumber="235" value="1976-06-19">19 June 1976</collectingDate>
</date>
</materialsCitation>
. 
<collectionCode id="D487FF96BD224B47A1F2F44EB095E533" box="[956,1008,314,339]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="4" pageNumber="235">IOM</collectionCode>
M.009–010 (1, 
<quantity id="756ECAB6BD224B47A235F42EB3A0E513" box="[123,197,346,371]" metricMagnitude="-2" metricUnit="m" metricValue="4.1" pageId="4" pageNumber="235" unit="mm" value="41.0">41 mm</quantity>
HL, 147+ mm TL) and 
<materialsCitation id="02FE6D0EBD224B47A384F42EB096E5F4" collectingDate="1977-09-03" collectionCode="IOM" country="Seychelles" elevation="1240" latitude="-8.116667" longLatPrecision="929" longitude="59.31" pageId="4" pageNumber="235" specimenCount="1" typeStatus="paratype">
<collectionCode id="D487FF96BD224B47A384F42EB29BE513" box="[458,510,346,371]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="4" pageNumber="235">IOM</collectionCode>
M.010–009 (1, 
<quantity id="756ECAB6BD224B47A0E2F42EB193E513" box="[684,758,346,371]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" pageId="4" pageNumber="235" unit="mm" value="80.0">80 mm</quantity>
HL, 265+ mm TL), Mascarene Ridge, 
<geoCoordinate id="D7A20194BD224B47A235F40FB3A0E5F4" box="[123,197,377,404]" degrees="8" direction="south" minutes="07" orientation="latitude" pageId="4" pageNumber="235" precision="925" value="-8.116667">8°07´S</geoCoordinate>
, 
<geoCoordinate id="D7A20194BD224B47A29DF40FB225E5F3" box="[211,320,377,404]" degrees="59" direction="east" minutes="18. 6" orientation="longitude" pageId="4" pageNumber="235" precision="92" value="59.31">59°18.6´E</geoCoordinate>
, 1300– 
<quantity id="756ECAB6BD224B47A3DFF40FB286E5F3" box="[401,483,379,404]" metricMagnitude="3" metricUnit="m" metricValue="1.24" pageId="4" pageNumber="235" unit="m" value="1240.0">
<elevation id="39BB8060BD224B47A3DFF40FB286E5F3" box="[401,483,379,404]" metricMagnitude="3" metricUnit="m" metricValue="1.24" pageId="4" pageNumber="235" unit="m" value="1240.0">1240 m</elevation>
</quantity>
, FRV 
<emphasis id="80E2BB41BD224B47A067F408B113E5F4" box="[553,630,380,404]" italics="true" pageId="4" pageNumber="235">Fiolent</emphasis>
, cruise 7(9), trawl 53, 
<date id="C6284193BD224B47A122F40FB096E5F4" box="[876,1011,379,404]" pageId="4" pageNumber="235" value="1977-09-03">
<collectingDate id="D66CB87BBD224B47A122F40FB096E5F4" box="[876,1011,379,404]" pageId="4" pageNumber="235" value="1977-09-03">3 Sept. 1977</collectingDate>
</date>
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.
</paragraph>
</subSubSection>
<subSubSection id="FA8C34D8BD224B47A2E5F4E9B0CBE6B5" pageId="4" pageNumber="235" type="diagnosis">
<paragraph id="B2296753BD224B47A2E5F4E9B0CBE6B5" blockId="4.[123,1174,217,1725]" pageId="4" pageNumber="235">
<smallCapsWord id="B4CFF18FBD224B47A2E5F4E9B245E5D3" baselines="431,430" box="[171,288,413,437]" lowerCaseFontSize="8" mainFontSize="10" normCase="title" normString="Diagnosis" pageId="4" pageNumber="235">
<emphasis id="80E2BB41BD224B47A2E5F4E9B3DBE5D5" bold="true" box="[171,190,413,437]" pageId="4" pageNumber="235">
<emphasis id="80E2BB41BD224B47A2F0F4D4B245E5D3" bold="true" box="[190,288,416,435]" pageId="4" pageNumber="235">DIAGNOSIS</emphasis>
</emphasis>
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.— A species of the 
<taxonomicName id="75961CD0BD224B47A04CF4E8B06AE5D4" authorityName="Barnard" authorityYear="1925" box="[514,783,412,436]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="4" pageNumber="235" phylum="Chordata" rank="species" species="acanthiger">
<emphasis id="80E2BB41BD224B47A04CF4E8B06AE5D4" box="[514,783,412,436]" italics="true" pageId="4" pageNumber="235">Coelorinchus acanthiger</emphasis>
</taxonomicName>
–group with light organ not evident externally; snout length 46–51 % HL, with sides in dorsal view straight to slightly concave and strongly converging anteriad in front of nasal fossa; medial element of terminal scute long and diamond-shaped, 9.9–11.1 % HL; preoral region partially to almost completely scaled at 
<quantity id="756ECAB6BD224B47A606F48FB7F0E674" box="[1096,1173,507,532]" metricMagnitude="-2" metricUnit="m" metricValue="7.9" pageId="4" pageNumber="235" unit="mm" value="79.0">79 mm</quantity>
HL or greater; nasal fossa mostly naked, area between nasal fossa, orbit, and suborbital ridge fully scaled; scales over interorbital region with spinules arranged in distinct keel-like rows; scales on body firmly attached, bearing spinules with buttresses strongly developed, forming concentric ridges even on scales below and in front of first dorsal fin, but weaker on tail scales; 3.0–4.5 and 4.0–5.5 scales between midbase of first dorsal fin and between origin of second dorsal fin and lateral line, respectively; body dark-colored, fins darker, lips and gums pale.
</paragraph>
</subSubSection>
<subSubSection id="FA8C34D8BD224B45A2E5F7ABB1ECE099" lastPageId="6" lastPageNumber="237" pageId="4" pageNumber="235" type="description">
<paragraph id="B2296753BD224B47A2E5F7ABB0FCE7D7" blockId="4.[123,1174,217,1725]" pageId="4" pageNumber="235">
<smallCapsWord id="B4CFF18FBD224B47A2E5F7ABB25FE695" baselines="753,752" box="[171,314,735,759]" lowerCaseFontSize="8" mainFontSize="10" normCase="title" normString="Description" pageId="4" pageNumber="235">
<emphasis id="80E2BB41BD224B47A2E5F7ABB3DBE697" bold="true" box="[171,190,735,759]" pageId="4" pageNumber="235">
<emphasis id="80E2BB41BD224B47A2F0F796B25FE695" bold="true" box="[190,314,738,757]" pageId="4" pageNumber="235">DESCRIPTION</emphasis>
</emphasis>
</smallCapsWord>
.— Based on specimens 
<quantity id="756ECAB6BD224B47A019F7A9B1BBE696" box="[599,734,733,758]" metricMagnitude="-1" metricUnit="m" metricValue="1.18" metricValueMax="1.5699999999999998" metricValueMin="0.79" pageId="4" pageNumber="235" unit="mm" value="118.0" valueMax="157.0" valueMin="79.0">79–157 mm</quantity>
HL. General features of fish seen in 
<figureCitation id="2AAD7BD6BD224B47A235F78AB3BDE776" box="[123,216,765,791]" captionStart="FIGURE" captionStartId="21.[155,167,1629,1649]" captionTargetBox="[120,1164,217,1598]" captionTargetId="figure-300@21.[120,1176,216,1608]" captionTargetPageId="21" captionText="FIGURE 2. Coelorinchus spp., habitus, lateral view. A. C. amirantensis, IOM M.008–002, paratype, 108 mm HL. B. C. mascarenus, IOM M.011–007, holotype, 91 mm HL. C. C. paraboliceps, IOM M.004–003, holotype, 120 mm HL. D. C. yurii, IOM M.003–017, non-type specimen, c.156 mm HL." figureDoi="http://doi.org/10.5281/zenodo.11105842" httpUri="https://zenodo.org/record/11105842/files/figure.png" pageId="4" pageNumber="235">Figs. 2A</figureCitation>
, 
<figureCitation id="2AAD7BD6BD224B47A2A9F789B391E776" box="[231,244,765,790]" captionStart="FIGURE" captionStartId="22.[155,167,1541,1561]" captionTargetBox="[120,1176,216,1522]" captionTargetId="figure-190@22.[120,1176,216,1522]" captionTargetPageId="22" captionText="FIGURE 3. Coelorinchus amirantensis, paratypes, IOM M.007–001, 126 mm HL (A, B), IOM M.008–002, 108 mm HL (C). A. Lateral view of head. B, C. Dorsal view of head." figureDoi="http://doi.org/10.5281/zenodo.11105844" httpUri="https://zenodo.org/record/11105844/files/figure.png" pageId="4" pageNumber="235">3</figureCitation>
, 
<figureCitation id="2AAD7BD6BD224B47A34DF78AB275E776" box="[259,272,766,790]" captionStart="FIGURE" captionStartId="23.[155,167,1061,1081]" captionTargetBox="[120,1176,216,1041]" captionTargetId="figure-196@23.[120,1176,216,1041]" captionTargetPageId="23" captionText="FIGURE 4. Coelorinchus amirantensis, paratypes, ventral view of head. A. IOM M.007–001, 126 mm HL. B. IOM M.008–002, 108 mm HL. C. IOM M.010–009, 80 mm HL." figureDoi="http://doi.org/10.5281/zenodo.11105846" httpUri="https://zenodo.org/record/11105846/files/figure.png" pageId="4" pageNumber="235">4</figureCitation>
. Counts: first dorsal-fin rays ii + 7–8 [ii + 7]; pectoral-fin rays i + 16–19 [i + 17]; pelvic-fin rays 7; gill-rakers (inner) on 1st arch 6–8 [8]; gill-rakers on 2nd arch 5–7 (outer) / 6–8 (inner) [6 / 8]; transverse scale rows below origin of first dorsal fin 3.5–6.5 [5.5]; ditto, below midbase of first dorsal fin 3.0–4.5 [4.5]; ditto, below origin of second dorsal fin 4.0–5.5 [4.5]; ditto, between origin of anal fin and lateral line 10.0–10.5 [not counted]; lateral-line scales before origin of second dorsal fin 12(13); pyloric caeca not counted (stomachs everted).
</paragraph>
<paragraph id="B2296753BD224B47A2FCF6CBB2F0E058" blockId="4.[123,1174,217,1725]" pageId="4" pageNumber="235">
Measurements shown in 
<tableCitation id="FF1452E8BD224B47A3F1F6CAB16BE7B8" box="[447,526,958,984]" captionStart="TABLE" captionStartId="38.[171,184,218,240]" captionTargetId="graphics-1043@38.[120,1176,264,1609]" captionTargetPageId="38" captionText="TABLE 2. Measurements of the species of Coelorinchus from the Mascarene Ridge." httpUri="http://table.plazi.org/id/E6E937DBBD004B65A2E5F5AEB0A8E490" pageId="4" pageNumber="235" tableUuid="E6E937DBBD004B65A2E5F5AEB0A8E490">Table 2</tableCitation>
. Width of body across pectoral bases 79.3–84.5 % of greatest body depth (at dorsal-fin origin), 1.1–1.3 times smaller than greatest width of head (at preopercles). Head c. 3.0–3.6 times in TL. Snout long, 2.0–2.2 times in HL, 1.4–1.7 times greater than postorbital length of head.
</paragraph>
<paragraph id="B2296753BD224B47A2E5F134B1C8E2DC" blockId="4.[123,1174,217,1725]" pageId="4" pageNumber="235">
Snout acute and horizontal in lateral view, with dorsal contour gently sloping toward the tip (
<figureCitation id="2AAD7BD6BD224B47A2CAF114B3BCE018" box="[132,217,1120,1145]" captionStart="FIGURE" captionStartId="22.[155,167,1541,1561]" captionTargetBox="[120,1176,216,1522]" captionTargetId="figure-190@22.[120,1176,216,1522]" captionTargetPageId="22" captionText="FIGURE 3. Coelorinchus amirantensis, paratypes, IOM M.007–001, 126 mm HL (A, B), IOM M.008–002, 108 mm HL (C). A. Lateral view of head. B, C. Dorsal view of head." figureDoi="http://doi.org/10.5281/zenodo.11105844" httpUri="https://zenodo.org/record/11105844/files/figure.png" pageId="4" pageNumber="235">Fig. 3A</figureCitation>
); usually distinctly convex at sides in dorsal view, with sides much more convergent toward the tip in anterior half to two-thirds of length of lateral nasal ridges; however, in some specimens (
<typeStatus id="6D2DD9F1BD224B47A284F1EBB242E0D9" box="[202,295,1183,1209]" pageId="4" pageNumber="235" type="holotype">holotype</typeStatus>
and 
<typeStatus id="6D2DD9F1BD224B47A315F1D5B2D2E0D9" box="[347,439,1185,1209]" pageId="4" pageNumber="235" type="paratype">paratype</typeStatus>
<collectionCode id="D487FF96BD224B47A3F0F1D4B297E0D9" box="[446,498,1184,1209]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="4" pageNumber="235">IOM</collectionCode>
M.008–002) sides of snout regularly convergent toward the tip (
<figureCitation id="2AAD7BD6BD224B47A2CAF1B5B26BE0B9" box="[132,270,1216,1242]" captionStart="FIGURE" captionStartId="22.[155,167,1541,1561]" captionTargetBox="[120,1176,216,1522]" captionTargetId="figure-190@22.[120,1176,216,1522]" captionTargetPageId="22" captionText="FIGURE 3. Coelorinchus amirantensis, paratypes, IOM M.007–001, 126 mm HL (A, B), IOM M.008–002, 108 mm HL (C). A. Lateral view of head. B, C. Dorsal view of head." figureDoi="http://doi.org/10.5281/zenodo.11105844" httpUri="https://zenodo.org/record/11105844/files/figure.png" pageId="4" pageNumber="235">Figs. 3B, 3C</figureCitation>
, 
<figureCitation id="2AAD7BD6BD224B47A353F1B5B24FE0B9" box="[285,298,1217,1241]" captionStart="FIGURE" captionStartId="23.[155,167,1061,1081]" captionTargetBox="[120,1176,216,1041]" captionTargetId="figure-196@23.[120,1176,216,1041]" captionTargetPageId="23" captionText="FIGURE 4. Coelorinchus amirantensis, paratypes, ventral view of head. A. IOM M.007–001, 126 mm HL. B. IOM M.008–002, 108 mm HL. C. IOM M.010–009, 80 mm HL." figureDoi="http://doi.org/10.5281/zenodo.11105846" httpUri="https://zenodo.org/record/11105846/files/figure.png" pageId="4" pageNumber="235">4</figureCitation>
). Snout tipped with long diamond-shaped terminal scute, which lateral elements form small (sometimes indistinct) “shoulders” on both sides of medial element at midlength of the latter. Anterolateral margins of snout not completely supported by bone. Orbit elliptical, its greatest diameter 4.0–4.9 times in HL, 1.8–2.3 times in snout. Suborbital shelf moderately angulated; shelf depth 1.4–1.5 times in suborbital depth. Lateral nasal ridge 2.7–2.9 times in length of suborbital ridge. Mouth large, posterior tip of maxilla extending to level of posterior quarter of orbit (rarely, to posterior third, but nearly to posterior border of orbit in largest 
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specimen), rictus below middle to posterior third of orbit. Preopercle inclined backward at about 50–70º, with moderately long, angularly rounded posteroventral lobe having crenate margin. Subopercle terminates ventrally in slender tip that extends somewhat beyond preopercle or completely hidden by preopercular lobe. Chin barbel short, slender, 3–4 times in orbit. Free neuromasts on snout, along head ridges and on underside of head prominent, more or less infuscated (more prominently on snout), surrounded by black hair-like papillae, poorly expressed on dorsal surface of head but densely covering preoral portion of snout, areas along upper jaw, and lower jaws. Inner side of gill opening usually without protrusion in its lower half (but present in 126-mm HL 
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specimen). Anus close to anal-fin origin. Light organ not externally visible.
</paragraph>
<paragraph id="B2296753BD234B46A2E5F5AEB06FE552" blockId="5.[123,1174,217,1725]" pageId="5" pageNumber="236">Jaw teeth thin, conical, in narrow bands; premaxillary teeth larger than those on dentary; outermost teeth of premaxilla weakly enlarged. Premaxillary tooth band short, 1.9–2.2(2.6) times in length of rictus; dentary tooth band reaching end of rictus.</paragraph>
<paragraph id="B2296753BD234B46A2E5F44FB3D6E5B3" blockId="5.[123,1174,217,1725]" pageId="5" pageNumber="236">
First dorsal-fin base 0.9–1.3 times shorter than the interdorsal space; second dorsal-fin spine with broken tip in all specimens examined. Pectoral fin narrow based, rather short, falling from just before anus (
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M.007–001) to just behind anal-fin origin. Pelvic fins originate on same vertical with pectoral fins or (more often) behind it. Outermost pelvic-fin ray filamentous and extending to anus.
</paragraph>
<paragraph id="B2296753BD234B46A2E5F4AFB2B9E23C" blockId="5.[123,1174,217,1725]" pageId="5" pageNumber="236">
Squamation (
<figureCitation id="2AAD7BD6BD234B46A374F4A8B2D2E594" box="[314,439,475,501]" captionStart="FIGURE" captionStartId="24.[155,167,1553,1573]" captionTargetBox="[132,1164,229,1524]" captionTargetId="figure-538@24.[120,1176,216,1538]" captionTargetPageId="24" captionText="FIGURE 5. Coelorinchus spp., isolated scales from predorsal region (A, D, G, J), from flank between first dorsal-fin origin and lateral line (B, E, H, K), and from flank between second dorsal-fin origin and lateral line (C, F, I, L) (stained by alizarine red S for contrast). A–C. C. amirantensis, IOM M.007–001, paratype. D–F. C. mascarenus, IOM M.011–007, holotype. G–I. C. paraboliceps, IOM M.004–003, holotype. J–L. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, J, 2.5 mm. B, C, E, F, H, K, 3.0 mm. D, 1.5 mm. G, 2.0 mm. I, L, 3.5 mm. Scale bar is common for E and F." figureDoi="http://doi.org/10.5281/zenodo.11105848" httpUri="https://zenodo.org/record/11105848/files/figure.png" pageId="5" pageNumber="236">Figs. 5A–C</figureCitation>
, 
<figureCitation id="2AAD7BD6BD234B46A38BF4AFB161E594" box="[453,516,475,500]" captionStart="FIGURE" captionStartId="25.[155,167,1312,1332]" captionTargetBox="[120,1175,216,1288]" captionTargetId="figure-350@25.[120,1176,216,1298]" captionTargetPageId="25" captionText="FIGURE 6. Coelorinchus spp., squamation of interorbital region (A, C, E) and of flank between mid-base of first dorsal fin and lateral line (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, C, E, 2.5 mm. B, D, F, 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105850" httpUri="https://zenodo.org/record/11105850/files/figure.png" pageId="5" pageNumber="236">6A–B</figureCitation>
, 
<figureCitation id="2AAD7BD6BD234B46A05CF4A8B137E594" box="[530,594,476,500]" captionStart="FIGURE" captionStartId="26.[155,167,1325,1345]" captionTargetBox="[129,1170,224,1301]" captionTargetId="figure-347@26.[120,1176,216,1310]" captionTargetPageId="26" captionText="FIGURE 7. Coelorinchus spp., squamation of flank between origin of second dorsal fin and lateral line (A, C, E) and of tail behind anterior third of second dorsal-fin base (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105852" httpUri="https://zenodo.org/record/11105852/files/figure.png" pageId="5" pageNumber="236">7A–B</figureCitation>
). All scales strong and adherent, those on body large. Scales on flanks, even in front of first dorsal-fin origin, with spinules arranged in parallel or slightly divergent rows; those on scales on top and lateral sides of head, in predorsal area, and on isthmus arranged in divergent rows. Spinules on scales below first dorsal-fin base arranged in 3–8 rows (usually 5–7), those on scales below origin of second dorsal fin arranged in 5–7 (smaller specimens) to 7–12 rows (largest specimens); predorsal scales with more erect and more separated spinules, arranged in 3–5 rows (
<figureCitation id="2AAD7BD6BD234B46A3EEF7E9B17FE6D6" box="[416,538,669,694]" captionStart="FIGURE" captionStartId="24.[155,167,1553,1573]" captionTargetBox="[132,1164,229,1524]" captionTargetId="figure-538@24.[120,1176,216,1538]" captionTargetPageId="24" captionText="FIGURE 5. Coelorinchus spp., isolated scales from predorsal region (A, D, G, J), from flank between first dorsal-fin origin and lateral line (B, E, H, K), and from flank between second dorsal-fin origin and lateral line (C, F, I, L) (stained by alizarine red S for contrast). A–C. C. amirantensis, IOM M.007–001, paratype. D–F. C. mascarenus, IOM M.011–007, holotype. G–I. C. paraboliceps, IOM M.004–003, holotype. J–L. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, J, 2.5 mm. B, C, E, F, H, K, 3.0 mm. D, 1.5 mm. G, 2.0 mm. I, L, 3.5 mm. Scale bar is common for E and F." figureDoi="http://doi.org/10.5281/zenodo.11105848" httpUri="https://zenodo.org/record/11105848/files/figure.png" pageId="5" pageNumber="236">Figs. 5A–C</figureCitation>
); lateral rows of spinules less complete on scales from anterior third of trunk and in specimens of smaller size; middle row of spinules distinctly enlarged, giving appearance of horizontal striations on body surface; spinules in rows gradually increasing in length posteriad, those of middle row longer and more erect in smaller specimens. Each spinule with prominent lateral buttresses often joined with those of neighboring rows to form low transverse ridges across exposed field of scale; buttresses strongly developed on scales elsewhere on trunk, in predorsal region, breast and belly, on top of head, on cheeks and gill cover (
<figureCitation id="2AAD7BD6BD234B46A65DF62AB7EAE717" box="[1043,1167,862,887]" captionStart="FIGURE" captionStartId="24.[155,167,1553,1573]" captionTargetBox="[132,1164,229,1524]" captionTargetId="figure-538@24.[120,1176,216,1538]" captionTargetPageId="24" captionText="FIGURE 5. Coelorinchus spp., isolated scales from predorsal region (A, D, G, J), from flank between first dorsal-fin origin and lateral line (B, E, H, K), and from flank between second dorsal-fin origin and lateral line (C, F, I, L) (stained by alizarine red S for contrast). A–C. C. amirantensis, IOM M.007–001, paratype. D–F. C. mascarenus, IOM M.011–007, holotype. G–I. C. paraboliceps, IOM M.004–003, holotype. J–L. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, J, 2.5 mm. B, C, E, F, H, K, 3.0 mm. D, 1.5 mm. G, 2.0 mm. I, L, 3.5 mm. Scale bar is common for E and F." figureDoi="http://doi.org/10.5281/zenodo.11105848" httpUri="https://zenodo.org/record/11105848/files/figure.png" pageId="5" pageNumber="236">Figs. 5A–C</figureCitation>
, 
<figureCitation id="2AAD7BD6BD234B46A235F60AB3FFE7F7" box="[123,154,894,919]" captionStart="FIGURE" captionStartId="25.[155,167,1312,1332]" captionTargetBox="[120,1175,216,1288]" captionTargetId="figure-350@25.[120,1176,216,1298]" captionTargetPageId="25" captionText="FIGURE 6. Coelorinchus spp., squamation of interorbital region (A, C, E) and of flank between mid-base of first dorsal fin and lateral line (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, C, E, 2.5 mm. B, D, F, 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105850" httpUri="https://zenodo.org/record/11105850/files/figure.png" pageId="5" pageNumber="236">6B</figureCitation>
, 
<figureCitation id="2AAD7BD6BD234B46A2E4F60BB3AFE7F7" box="[170,202,895,919]" captionStart="FIGURE" captionStartId="26.[155,167,1325,1345]" captionTargetBox="[129,1170,224,1301]" captionTargetId="figure-347@26.[120,1176,216,1310]" captionTargetPageId="26" captionText="FIGURE 7. Coelorinchus spp., squamation of flank between origin of second dorsal fin and lateral line (A, C, E) and of tail behind anterior third of second dorsal-fin base (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105852" httpUri="https://zenodo.org/record/11105852/files/figure.png" pageId="5" pageNumber="236">7A</figureCitation>
), but becoming weaker on scales from tail region behind anterior third of anal-fin base, these scales show more depressed spinules with last spinule of medial row more greatly produced backward (
<figureCitation id="2AAD7BD6BD234B46A2BAF6CBB223E7B7" box="[244,326,959,984]" captionStart="FIGURE" captionStartId="26.[155,167,1325,1345]" captionTargetBox="[129,1170,224,1301]" captionTargetId="figure-347@26.[120,1176,216,1310]" captionTargetPageId="26" captionText="FIGURE 7. Coelorinchus spp., squamation of flank between origin of second dorsal fin and lateral line (A, C, E) and of tail behind anterior third of second dorsal-fin base (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105852" httpUri="https://zenodo.org/record/11105852/files/figure.png" pageId="5" pageNumber="236">Fig. 7B</figureCitation>
). Buttresses are better developed in larger specimens. Scales over interorbital region bearing spinules arranged in keel-like rows (
<figureCitation id="2AAD7BD6BD234B46A0E4F6ABB198E797" box="[682,765,991,1016]" captionStart="FIGURE" captionStartId="25.[155,167,1312,1332]" captionTargetBox="[120,1175,216,1288]" captionTargetId="figure-350@25.[120,1176,216,1298]" captionTargetPageId="25" captionText="FIGURE 6. Coelorinchus spp., squamation of interorbital region (A, C, E) and of flank between mid-base of first dorsal fin and lateral line (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, C, E, 2.5 mm. B, D, F, 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105850" httpUri="https://zenodo.org/record/11105850/files/figure.png" pageId="5" pageNumber="236">Fig. 6A</figureCitation>
). Area between the orbit, nasal fossa, and suborbital ridge fully scaled, with spinules on scales arranged in 1–3 rows in larger specimens, in clusters to one short row in smaller specimens. Narrowest portion of suborbital shelf bearing 2–4 rows of tightly joined scales between lower rim of orbit and upper edge of suborbital ridge, scales in lowermost row much larger than 1–3 rows of small scales above it; number of rows decreasing with growth. Nasal fossa scaleless except for some cycloid scales along margins and sometimes a few spinulose scales in front of and/or below nostrils (from one side only in 126-mm HL 
<collectionCode id="D487FF96BD234B46A2E6F1B4B3B9E0B9" box="[168,220,1216,1241]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="5" pageNumber="236">IOM</collectionCode>
specimen, fully naked in 
<typeStatus id="6D2DD9F1BD234B46A048F1B4B106E0BA" box="[518,611,1216,1242]" pageId="5" pageNumber="236" type="holotype">holotype</typeStatus>
). Top of snout densely scaled. Underside of head usually densely scaled, but not gular region, branchiostegal membranes and small triangular area in front of premaxillary symphysis (
<figureCitation id="2AAD7BD6BD234B46A3B3F075B119E179" box="[509,636,1281,1306]" captionStart="FIGURE" captionStartId="23.[155,167,1061,1081]" captionTargetBox="[120,1176,216,1041]" captionTargetId="figure-196@23.[120,1176,216,1041]" captionTargetPageId="23" captionText="FIGURE 4. Coelorinchus amirantensis, paratypes, ventral view of head. A. IOM M.007–001, 126 mm HL. B. IOM M.008–002, 108 mm HL. C. IOM M.010–009, 80 mm HL." figureDoi="http://doi.org/10.5281/zenodo.11105846" httpUri="https://zenodo.org/record/11105846/files/figure.png" pageId="5" pageNumber="236">Fig. 4A, 4B</figureCitation>
). Scales firmly adherent. In 
<collectionCode id="D487FF96BD234B46A1E3F075B084E17A" box="[941,993,1281,1306]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="5" pageNumber="236">IOM</collectionCode>
specimens of 79 and 
<quantity id="756ECAB6BD234B46A2E4F055B266E15A" box="[170,259,1313,1338]" metricMagnitude="-1" metricUnit="m" metricValue="1.08" pageId="5" pageNumber="236" unit="mm" value="108.0">108 mm</quantity>
HL, underside of snout largely scaleless over anterior third to two-thirds of preoral length (
<figureCitation id="2AAD7BD6BD234B46A283F036B24DE13A" box="[205,296,1345,1371]" captionStart="FIGURE" captionStartId="23.[155,167,1061,1081]" captionTargetBox="[120,1176,216,1041]" captionTargetId="figure-196@23.[120,1176,216,1041]" captionTargetPageId="23" captionText="FIGURE 4. Coelorinchus amirantensis, paratypes, ventral view of head. A. IOM M.007–001, 126 mm HL. B. IOM M.008–002, 108 mm HL. C. IOM M.010–009, 80 mm HL." figureDoi="http://doi.org/10.5281/zenodo.11105846" httpUri="https://zenodo.org/record/11105846/files/figure.png" pageId="5" pageNumber="236">Figs. 4C</figureCitation>
). Spinules on scales from underside of snout arranged in a single short row (up to 3–4 spinules in number in largest specimens). Density of spinulation of scales on top of head and arrangement of spinules variable. Scutes of head ridges strongly armed with numerous sharp, comparatively long, and rather stout conical spinules (thinner and longer in smaller specimens). Scutes forming medial nasal ridge 
<quantity id="756ECAB6BD234B46A3EBF0B6B28FE1BB" box="[421,490,1474,1499]" metricMagnitude="-1" metricUnit="m" metricValue="2.159" metricValueMax="2.286" metricValueMin="2.032" pageId="5" pageNumber="236" unit="in" value="8.5" valueMax="9.0" valueMin="8.0">8–9 in</quantity>
number (including terminal scute), each with radiating rows of spinules bearing prominent buttresses. Supraoccipital scute small, coarsely spinulated, usually as large as neighboring scales but distinctly larger than same in 126-mm HL 
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specimen (slightly larger in 79-mm HL 
<collectionCode id="D487FF96BD234B46A32CF357B2F3E25C" box="[354,406,1571,1596]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="5" pageNumber="236">IOM</collectionCode>
specimen); postoccipital scute small, coarsely spinulated, about same size as anteriormost flank scales.
</paragraph>
<paragraph id="B2296753BD234B45A2E5F317B390E594" blockId="5.[123,1174,217,1725]" lastBlockId="6.[123,1174,217,1725]" lastPageId="6" lastPageNumber="237" pageId="5" pageNumber="236">Body color brown, without markings; dark coloration formed by dense aggregations of brownish melanophores on epithelium covering exposed field of scales. When scales removed, scale pockets pure white with narrow dark-brown margins and sparse concentrations of brownish melanophores, or rarely, isolated melanophores, much less expressed and much smaller on scale pockets from dorsal half of body and from caudal region. Distal third of scale pockets around periproct heavily pigmented by confluent brownish to blackish melanophores. Orbit encircled by dark-brown ring; anterior border of second naris blackish. Gular region and branchiostegal membranes darker than other parts of underside of head, upper reaches of branchiostegal membrane blackish. Lips and gums pale; mouth cavity pale to dusky; gustatory papillae pale, but minute papillae along margins of lower lip sometimes blackish; branchial cavity and peritoneum blackish; stomach pale. All fins dark or dusky; skin at bases of anal-fin rays sometimes darker than on adjacent scales.</paragraph>
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<emphasis id="80E2BB41BD204B45A2F5F774B245E673" bold="true" box="[187,288,512,531]" pageId="6" pageNumber="237">VARIATION</emphasis>
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.— Specimens examined are variable in shape of snout, degree of scale covering of preoral region, and distribution of spinules on scales atop head. The 
<typeStatus id="6D2DD9F1BD204B45A126F76FB0A0E655" box="[872,965,539,565]" pageId="6" pageNumber="237" type="holotype">holotype</typeStatus>
(
<quantity id="756ECAB6BD204B45A199F768B754E654" box="[983,1073,540,565]" metricMagnitude="-1" metricUnit="m" metricValue="1.5699999999999998" pageId="6" pageNumber="237" unit="mm" value="157.0">157 mm</quantity>
HL) and 
<typeStatus id="6D2DD9F1BD204B45A235F748B3B2E634" box="[123,215,572,596]" pageId="6" pageNumber="237" type="paratype">paratype</typeStatus>
<collectionCode id="D487FF96BD204B45A290F748B277E635" box="[222,274,572,597]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="6" pageNumber="237">IOM</collectionCode>
M.008–002 (
<quantity id="756ECAB6BD204B45A3EBF748B298E634" box="[421,509,572,597]" metricMagnitude="-1" metricUnit="m" metricValue="1.08" pageId="6" pageNumber="237" unit="mm" value="108.0">108 mm</quantity>
HL) show sides of snout regularly converging toward the tip, in contrast to the 
<typeStatus id="6D2DD9F1BD204B45A372F72FB28EE615" box="[316,491,603,629]" isOtherTypeStatus="true" pageId="6" pageNumber="237">other specimens</typeStatus>
with sides of snout distinctly convex in dorsal view (compare 
<figureCitation id="2AAD7BD6BD204B45A235F709B24DE6F5" box="[123,296,636,662]" captionStart="FIGURE" captionStartId="22.[155,167,1541,1561]" captionTargetBox="[120,1176,216,1522]" captionTargetId="figure-190@22.[120,1176,216,1522]" captionTargetPageId="22" captionText="FIGURE 3. Coelorinchus amirantensis, paratypes, IOM M.007–001, 126 mm HL (A, B), IOM M.008–002, 108 mm HL (C). A. Lateral view of head. B, C. Dorsal view of head." figureDoi="http://doi.org/10.5281/zenodo.11105844" httpUri="https://zenodo.org/record/11105844/files/figure.png" pageId="6" pageNumber="237">Figs. 3B and 3C</figureCitation>
). However, this character does not correlate with other variable features. 
<typeStatus id="6D2DD9F1BD204B45A676F709B7F0E6F5" box="[1080,1173,637,661]" pageId="6" pageNumber="237" type="paratype">Paratype</typeStatus>
<collectionCode id="D487FF96BD204B45A235F7E9B3CAE6D6" box="[123,175,669,694]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="6" pageNumber="237">IOM</collectionCode>
M.005–020 (
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HL) is fairly distinct from the others in arrangement of scales in preoral region, which is largely scaleless along two-thirds of its length with scales cycloid laterally and behind scaleless area. However, in 
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<collectionCode id="D487FF96BD204B45A015F7A9B1EAE696" box="[603,655,733,758]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="6" pageNumber="237">IOM</collectionCode>
M.008–002, the anterior third of preoral region is also scaleless, though laterally and posteriorly from that area scales are spinulose. 
<typeStatus id="6D2DD9F1BD204B45A1B0F78AB73EE776" box="[1022,1115,766,790]" pageId="6" pageNumber="237" type="paratype">Paratype</typeStatus>
<collectionCode id="D487FF96BD204B45A62FF789B7F0E776" box="[1121,1173,765,790]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="6" pageNumber="237">IOM</collectionCode>
M.005–020 shows less numerous spinules on scales on top of head in comparison to 
<typeStatus id="6D2DD9F1BD204B45A659F669B246E737" isOtherTypeStatus="true" pageId="6" pageNumber="237">other specimens examined</typeStatus>
; however, density and arrangement of spinules on these scales are variable in all available specimens, and there are no specimens having these features nearly identical. We treat all these differences as individual variation.
</paragraph>
<paragraph id="B2296753BD204B45A2E5F6EAB1ECE099" blockId="6.[123,1174,217,1725]" pageId="6" pageNumber="237">
The 41-mm HL 
<typeStatus id="6D2DD9F1BD204B45A314F6EBB2D3E7D7" box="[346,438,927,951]" pageId="6" pageNumber="237" type="paratype">paratype</typeStatus>
(
<collectionCode id="D487FF96BD204B45A388F6EAB29FE7D7" box="[454,506,926,951]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="6" pageNumber="237">IOM</collectionCode>
M.009–010: 
<figureCitation id="2AAD7BD6BD204B45A0C5F6EBB1AFE7D7" box="[651,714,926,952]" captionStart="FIGURE" captionStartId="27.[155,167,1082,1102]" captionTargetBox="[120,1175,217,1066]" captionTargetId="figure-199@27.[120,1176,216,1066]" captionTargetPageId="27" captionText="FIGURE 8. Coelorinchus amirantensis, IOM M.009–010, juvenile paratype, 41 mm HL. A. Dorsal view of head. B. Ventral view of head. C. Habitus, lateral view." figureDoi="http://doi.org/10.5281/zenodo.11105854" httpUri="https://zenodo.org/record/11105854/files/figure.png" pageId="6" pageNumber="237">Fig. 8</figureCitation>
) differs from the adult and subadult specimens described above in having underside of head completely devoid of scales (
<figureCitation id="2AAD7BD6BD204B45A1A0F6CBB725E7B7" box="[1006,1088,959,984]" captionStart="FIGURE" captionStartId="27.[155,167,1082,1102]" captionTargetBox="[120,1175,217,1066]" captionTargetId="figure-199@27.[120,1176,216,1066]" captionTargetPageId="27" captionText="FIGURE 8. Coelorinchus amirantensis, IOM M.009–010, juvenile paratype, 41 mm HL. A. Dorsal view of head. B. Ventral view of head. C. Habitus, lateral view." figureDoi="http://doi.org/10.5281/zenodo.11105854" httpUri="https://zenodo.org/record/11105854/files/figure.png" pageId="6" pageNumber="237">Fig. 8B</figureCitation>
). It has body scales (
<figureCitation id="2AAD7BD6BD204B45A348F6ABB221E798" box="[262,324,991,1016]" captionStart="FIGURE" captionStartId="27.[155,167,1665,1685]" captionTargetBox="[130,1168,1167,1640]" captionTargetId="figure-200@27.[120,1176,1158,1654]" captionTargetPageId="27" captionText="FIGURE 9. Coelorinchus amirantensis, IOM M.009–010, juvenile paratype, 41 mm HL, isolated scales from predorsal region (A) and from flank between mid-base of first dorsal fin and lateral line (B). Scale bars: 0.5 mm" figureDoi="http://doi.org/10.5281/zenodo.11105856" httpUri="https://zenodo.org/record/11105856/files/figure.png" pageId="6" pageNumber="237">Fig. 9</figureCitation>
) much less adherent than in larger specimens, with fewer but more raised spinules, 3–4 rows on scales in front and below first dorsal fin, in interdorsal area, and on isthmus; scales lost from other parts of body. The last spinule of medial row on scales from dorsal half of trunk conspicuously enlarged. Head ridges much more coarsely spinulated than in adults, but spinules on scales from head are less developed, and scales between the orbit and suborbital ridge are largely cycloid. Overall coloration is much paler than in adults but darkish circumorbital ring is already obvious. In proportions this juvenile is distant from all available larger specimens in the longer jaws and premaxillary tooth band, shorter terminal scute, much shorter lateral nasal ridges, and wider and somewhat shorter snout (
<tableCitation id="FF1452E8BD204B45A067F194B11DE09A" box="[553,632,1248,1274]" captionStart="TABLE" captionStartId="38.[171,184,218,240]" captionTargetId="graphics-1043@38.[120,1176,264,1609]" captionTargetPageId="38" captionText="TABLE 2. Measurements of the species of Coelorinchus from the Mascarene Ridge." httpUri="http://table.plazi.org/id/E6E937DBBD004B65A2E5F5AEB0A8E490" pageId="6" pageNumber="237" tableUuid="E6E937DBBD004B65A2E5F5AEB0A8E490">Table 2</tableCitation>
).
</paragraph>
</subSubSection>
<subSubSection id="FA8C34D8BD204B44A2E5F077B141E714" lastPageId="7" lastPageNumber="238" pageId="6" pageNumber="237" type="etymology">
<paragraph id="B2296753BD204B45A2E5F077B2DAE15A" blockId="6.[123,1174,217,1725]" pageId="6" pageNumber="237">
<smallCapsWord id="B4CFF18FBD204B45A2E5F077B250E179" baselines="1301,1300" box="[171,309,1283,1307]" lowerCaseFontSize="8" mainFontSize="10" normCase="title" normString="Etymology" pageId="6" pageNumber="237">
<emphasis id="80E2BB41BD204B45A2E5F077B3D8E17B" bold="true" box="[171,189,1283,1307]" pageId="6" pageNumber="237">
<emphasis id="80E2BB41BD204B45A2F2F072B250E179" bold="true" box="[188,309,1286,1305]" pageId="6" pageNumber="237">ETYMOLOGY</emphasis>
</emphasis>
</smallCapsWord>
.— The species name is derived from the Amirantes Basin, the 
<typeStatus id="6D2DD9F1BD204B45A181F075B098E179" box="[975,1021,1281,1305]" pageId="6" pageNumber="237">type</typeStatus>
locality of the species (
<bibRefCitation id="D6071AA2BD204B45A296F056B2CAE15A" author="IWAMOTO, TOMIO &amp; DANIEL GOLANI, ALBERT" box="[216,431,1312,1338]" pageId="6" pageNumber="237" pagination="433 - 442" refId="ref16768" refString="IWAMOTO, TOMIO, DANIEL GOLANI, ALBERT BARANES, AND MENACHEM GOREN. 2006. Two new grenadiers (Teleostei, Gadiformes, Macrouridae) from the Seychelles and Mascarene Ridge, western Indian Ocean. Proceedings of the California Academy of Sciences, ser. 4, 57 (13): 433 - 442, 5 figs., 1 table." type="book chapter" year="2006">Iwamoto et al. 2006</bibRefCitation>
).
</paragraph>
<paragraph id="B2296753BD204B44A2E5F037B72CE552" blockId="6.[123,1174,217,1725]" lastBlockId="7.[123,1174,216,885]" lastPageId="7" lastPageNumber="238" pageId="6" pageNumber="237">
<smallCapsWord id="B4CFF18FBD204B45A2E5F037B221E139" baselines="1365,1364" box="[171,324,1347,1371]" lowerCaseFontSize="8" mainFontSize="10" normCase="title" normString="Comparisons" pageId="6" pageNumber="237">
<emphasis id="80E2BB41BD204B45A2E5F037B3DBE13B" bold="true" box="[171,190,1347,1371]" pageId="6" pageNumber="237">
<emphasis id="80E2BB41BD204B45A2F0F032B221E139" bold="true" box="[190,324,1350,1369]" pageId="6" pageNumber="237">COMPARISONS</emphasis>
</emphasis>
</smallCapsWord>
. 
<emphasis id="80E2BB41BD204B45A305F036B1F3E13B" box="[331,662,1346,1371]" italics="true" pageId="6" pageNumber="237">
— 
<taxonomicName id="75961CD0BD204B45A322F037B1F3E13B" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[364,662,1347,1371]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="6" pageNumber="237" phylum="Chordata" rank="species" species="amirantensis">Coelorinchus amirantensis</taxonomicName>
</emphasis>
can be easily distinguished from all other Mascarene species of 
<taxonomicName id="75961CD0BD204B45A325F017B29EE11B" authorityName="Giorna" authorityYear="1809" box="[363,507,1379,1403]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="6" pageNumber="237" phylum="Chordata" rank="genus">
<emphasis id="80E2BB41BD204B45A325F017B29EE11B" box="[363,507,1379,1403]" italics="true" pageId="6" pageNumber="237">Coelorinchus</emphasis>
</taxonomicName>
by its distinctly longer and more acutely pointed snout, relatively shorter premaxillary tooth band, short-based first dorsal fin apparently lacking elongated filament of its second ray at all stages of growth, shorter interdorsal distance, and by details of squamation. Scales of 
<taxonomicName id="75961CD0BD204B45A30EF0B0B28EE1BC" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[320,491,1476,1500]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="6" pageNumber="237" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD204B45A30EF0B0B28EE1BC" box="[320,491,1476,1500]" italics="true" pageId="6" pageNumber="237">C. amirantensis</emphasis>
</taxonomicName>
are strongly adherent with prominent lateral buttresses mostly confluent with each other to form low transverse ridges across exposed field of scale (vs. scales deciduous and buttresses weak or lacking in 
<taxonomicName id="75961CD0BD204B45A03BF371B073E27C" authorityName="Prokofiev &amp; Iwamoto" authorityYear="2020" box="[629,790,1541,1564]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="6" pageNumber="237" phylum="Chordata" rank="species" species="mascarenus">
<emphasis id="80E2BB41BD204B45A03BF371B073E27C" box="[629,790,1541,1564]" italics="true" pageId="6" pageNumber="237">C. mascarenus</emphasis>
</taxonomicName>
) (
<figureCitation id="2AAD7BD6BD204B45A17AF377B0D5E27B" box="[820,944,1539,1564]" captionStart="FIGURE" captionStartId="24.[155,167,1553,1573]" captionTargetBox="[132,1164,229,1524]" captionTargetId="figure-538@24.[120,1176,216,1538]" captionTargetPageId="24" captionText="FIGURE 5. Coelorinchus spp., isolated scales from predorsal region (A, D, G, J), from flank between first dorsal-fin origin and lateral line (B, E, H, K), and from flank between second dorsal-fin origin and lateral line (C, F, I, L) (stained by alizarine red S for contrast). A–C. C. amirantensis, IOM M.007–001, paratype. D–F. C. mascarenus, IOM M.011–007, holotype. G–I. C. paraboliceps, IOM M.004–003, holotype. J–L. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, J, 2.5 mm. B, C, E, F, H, K, 3.0 mm. D, 1.5 mm. G, 2.0 mm. I, L, 3.5 mm. Scale bar is common for E and F." figureDoi="http://doi.org/10.5281/zenodo.11105848" httpUri="https://zenodo.org/record/11105848/files/figure.png" pageId="6" pageNumber="237">Figs. 5A–F</figureCitation>
); buttresses forming transverse ridges on scales from predorsal area and flanks above lateral line, and before second dorsal-fin origin (vs. not forming transverse ridges in 
<taxonomicName id="75961CD0BD204B45A0D9F331B18DE23C" box="[663,744,1605,1628]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="6" pageNumber="237" phylum="Chordata" rank="species" species="yurii">
<emphasis id="80E2BB41BD204B45A0D9F331B18DE23C" box="[663,744,1605,1628]" italics="true" pageId="6" pageNumber="237">C. yurii</emphasis>
</taxonomicName>
) (
<figureCitation id="2AAD7BD6BD204B45A14FF330B0DAE23C" box="[769,959,1603,1629]" captionStart="FIGURE" captionStartId="24.[155,167,1553,1573]" captionTargetBox="[132,1164,229,1524]" captionTargetId="figure-538@24.[120,1176,216,1538]" captionTargetPageId="24" captionText="FIGURE 5. Coelorinchus spp., isolated scales from predorsal region (A, D, G, J), from flank between first dorsal-fin origin and lateral line (B, E, H, K), and from flank between second dorsal-fin origin and lateral line (C, F, I, L) (stained by alizarine red S for contrast). A–C. C. amirantensis, IOM M.007–001, paratype. D–F. C. mascarenus, IOM M.011–007, holotype. G–I. C. paraboliceps, IOM M.004–003, holotype. J–L. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, J, 2.5 mm. B, C, E, F, H, K, 3.0 mm. D, 1.5 mm. G, 2.0 mm. I, L, 3.5 mm. Scale bar is common for E and F." figureDoi="http://doi.org/10.5281/zenodo.11105848" httpUri="https://zenodo.org/record/11105848/files/figure.png" pageId="6" pageNumber="237">Figs. 5A–C, 5J–L</figureCitation>
, 
<figureCitation id="2AAD7BD6BD204B45A183F337B773E23C" box="[973,1046,1603,1628]" captionStart="FIGURE" captionStartId="25.[155,167,1312,1332]" captionTargetBox="[120,1175,216,1288]" captionTargetId="figure-350@25.[120,1176,216,1298]" captionTargetPageId="25" captionText="FIGURE 6. Coelorinchus spp., squamation of interorbital region (A, C, E) and of flank between mid-base of first dorsal fin and lateral line (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, C, E, 2.5 mm. B, D, F, 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105850" httpUri="https://zenodo.org/record/11105850/files/figure.png" pageId="6" pageNumber="237">6B, 6F</figureCitation>
), becoming weaker on tail scales with transverse ridges disappearing, in contrast to 
<taxonomicName id="75961CD0BD204B45A134F311B741E21D" authorityName="Prokofiev &amp; Iwamoto" authorityYear="2020" box="[890,1060,1637,1661]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="6" pageNumber="237" phylum="Chordata" rank="species" species="paraboliceps">
<emphasis id="80E2BB41BD204B45A134F311B741E21D" box="[890,1060,1637,1661]" italics="true" pageId="6" pageNumber="237">C. paraboliceps</emphasis>
</taxonomicName>
(
<figureCitation id="2AAD7BD6BD204B45A67AF310B3FEE2FC" captionStart="FIGURE" captionStartId="26.[155,167,1325,1345]" captionTargetBox="[129,1170,224,1301]" captionTargetId="figure-347@26.[120,1176,216,1310]" captionTargetPageId="26" captionText="FIGURE 7. Coelorinchus spp., squamation of flank between origin of second dorsal fin and lateral line (A, C, E) and of tail behind anterior third of second dorsal-fin base (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105852" httpUri="https://zenodo.org/record/11105852/files/figure.png" pageId="6" pageNumber="237">Figs. 7B, 7D</figureCitation>
). Scales on interorbital region possess spinules arranged in distinct keel-like rows in 
<taxonomicName id="75961CD0BD204B45A60DF3F2B3B8E2DD" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="6" pageNumber="237" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD204B45A60DF3F2B3B8E2DD" italics="true" pageId="6" pageNumber="237">C. amirantensis</emphasis>
</taxonomicName>
instead of irregularly disposed spinules on most of scales in that area in the three other Mascarene species (
<figureCitation id="2AAD7BD6BD214B44A31FF5AEB166E492" box="[337,515,217,243]" captionStart="FIGURE" captionStartId="25.[155,167,1312,1332]" captionTargetBox="[120,1175,216,1288]" captionTargetId="figure-350@25.[120,1176,216,1298]" captionTargetPageId="25" captionText="FIGURE 6. Coelorinchus spp., squamation of interorbital region (A, C, E) and of flank between mid-base of first dorsal fin and lateral line (B, D, F). A, B. C. amirantensis, IOM M.007–001, paratype. C, D. C. paraboliceps, IOM M.004–003, holotype. E, F. C. yurii, IOM M.003–017, non-type specimen. Scale bars: A, C, E, 2.5 mm. B, D, F, 5.0 mm." figureDoi="http://doi.org/10.5281/zenodo.11105850" httpUri="https://zenodo.org/record/11105850/files/figure.png" pageId="7" pageNumber="238">Figs. 6A, 6C, 6E</figureCitation>
). Morphometric differences between four Mascarene 
<taxonomicName id="75961CD0BD214B44A60CF5AFB27DE572" pageId="7" pageNumber="238">
<emphasis id="80E2BB41BD214B44A60CF5AFB3A4E573" italics="true" pageId="7" pageNumber="238">Coelorinchus</emphasis>
species
</taxonomicName>
are summarized in 
<tableCitation id="FF1452E8BD214B44A3B4F58DB10AE572" box="[506,623,249,275]" captionStart="TABLE" captionStartId="38.[171,184,218,240]" captionTargetId="graphics-1043@38.[120,1176,264,1609]" captionTargetPageId="38" captionText="TABLE 2. Measurements of the species of Coelorinchus from the Mascarene Ridge." httpUri="http://table.plazi.org/id/E6E937DBBD004B65A2E5F5AEB0A8E490" pageId="7" pageNumber="238" tableUuid="E6E937DBBD004B65A2E5F5AEB0A8E490">Table 2. A</tableCitation>
comparison with similar extralimital species was provided by 
<bibRefCitation id="D6071AA2BD214B44A34DF46EB289E553" author="IWAMOTO, TOMIO &amp; DANIEL GOLANI, ALBERT" box="[259,492,281,307]" pageId="7" pageNumber="238" pagination="433 - 442" refId="ref16768" refString="IWAMOTO, TOMIO, DANIEL GOLANI, ALBERT BARANES, AND MENACHEM GOREN. 2006. Two new grenadiers (Teleostei, Gadiformes, Macrouridae) from the Seychelles and Mascarene Ridge, western Indian Ocean. Proceedings of the California Academy of Sciences, ser. 4, 57 (13): 433 - 442, 5 figs., 1 table." type="book chapter" year="2006">Iwamoto et al. (2006)</bibRefCitation>
, see keys to species in current paper for additional data.
</paragraph>
<paragraph id="B2296753BD214B44A2E5F44DB141E714" blockId="7.[123,1174,216,885]" pageId="7" pageNumber="238">
The 41-mm HL juvenile of 
<taxonomicName id="75961CD0BD214B44A382F448B110E533" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[460,629,316,339]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD214B44A382F448B110E533" box="[460,629,316,339]" italics="true" pageId="7" pageNumber="238">C. amirantensis</emphasis>
</taxonomicName>
has underside of head completely scaleless and can be confused with 
<taxonomicName id="75961CD0BD214B44A377F428B2B5E513" baseAuthorityName="Kohler" baseAuthorityYear="1896" box="[313,464,345,371]" family="Macrouridae" genus="Coelorinchus" isUncertain="true" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="labiatus">
<emphasis id="80E2BB41BD214B44A377F428B234E513" box="[313,337,348,371]" italics="true" pageId="7" pageNumber="238">C.</emphasis>
cf. 
<emphasis id="80E2BB41BD214B44A334F42FB2B5E513" box="[378,464,347,371]" italics="true" pageId="7" pageNumber="238">labiatus</emphasis>
</taxonomicName>
, which has the scaleless underside of head at all stages of growth. The 38-mm HL juvenile of 
<taxonomicName id="75961CD0BD214B44A3D0F408B151E5F4" baseAuthorityName="Kohler" baseAuthorityYear="1896" box="[414,564,377,404]" family="Macrouridae" genus="Coelorinchus" isUncertain="true" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="labiatus">
<emphasis id="80E2BB41BD214B44A3D0F408B2D2E5F3" box="[414,439,380,403]" italics="true" pageId="7" pageNumber="238">C.</emphasis>
cf. 
<emphasis id="80E2BB41BD214B44A390F408B151E5F4" box="[478,564,380,404]" italics="true" pageId="7" pageNumber="238">labiatus</emphasis>
</taxonomicName>
(
<collectionCode id="D487FF96BD214B44A00DF40EB112E5F3" box="[579,631,378,403]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="7" pageNumber="238">IOM</collectionCode>
00184) shows all lateral rows of spinules on scales in front, below and behind first dorsal fin complete and reaching distal margin of scale, in contrast to those in adults and similar to those of 
<taxonomicName id="75961CD0BD214B44A07AF4C8B1BBE5B4" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[564,734,444,468]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD214B44A07AF4C8B1BBE5B4" box="[564,734,444,468]" italics="true" pageId="7" pageNumber="238">C. amirantensis</emphasis>
</taxonomicName>
. However, these spinules are much finer and more depressed than in juveniles of 
<taxonomicName id="75961CD0BD214B44A066F4A8B1B4E594" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[552,721,476,500]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD214B44A066F4A8B1B4E594" box="[552,721,476,500]" italics="true" pageId="7" pageNumber="238">C. amirantensis</emphasis>
</taxonomicName>
, more numerous (usually in 5 rows, rarely in 4 or 6), with last spinule of medial row never much enlarged. The head ridges in juveniles of 
<taxonomicName id="75961CD0BD214B44A235F769B271E654" baseAuthorityName="Kohler" baseAuthorityYear="1896" box="[123,276,537,564]" family="Macrouridae" genus="Coelorinchus" isUncertain="true" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="labiatus">
<emphasis id="80E2BB41BD214B44A235F769B3F6E654" box="[123,147,541,564]" italics="true" pageId="7" pageNumber="238">C.</emphasis>
cf. 
<emphasis id="80E2BB41BD214B44A2F0F768B271E654" box="[190,276,540,564]" italics="true" pageId="7" pageNumber="238">labiatus</emphasis>
</taxonomicName>
are not so coarsely spinulated, and spinules on scales on top and sides of head are poorly developed (most scales cycloid and much more deciduous than in 
<taxonomicName id="75961CD0BD214B44A1E6F749B731E634" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[936,1108,573,596]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD214B44A1E6F749B731E634" box="[936,1108,573,596]" italics="true" pageId="7" pageNumber="238">C. amirantensis</emphasis>
</taxonomicName>
). The 
<quantity id="756ECAB6BD214B44A235F72FB38BE613" box="[123,238,603,628]" metricMagnitude="-2" metricUnit="m" metricValue="4.25" metricValueMax="4.5" metricValueMin="4.0" pageId="7" pageNumber="238" unit="mm" value="42.5" valueMax="45.0" valueMin="40.0">40–45 mm</quantity>
HL juveniles of 
<taxonomicName id="75961CD0BD214B44A3EAF729B171E614" box="[420,532,604,628]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="braueri">
<emphasis id="80E2BB41BD214B44A3EAF729B171E614" box="[420,532,604,628]" italics="true" pageId="7" pageNumber="238">C. braueri</emphasis>
</taxonomicName>
(
<collectionCode id="D487FF96BD214B44A06AF72FB13DE614" box="[548,600,603,628]" country="Russia" httpUri="http://grbio.org/cool/9zah-8jyz" name="Institute of Oceanology, Academy of Sciences" pageId="7" pageNumber="238">IOM</collectionCode>
00191) have underside of head also scaleless or with few scales at corners of mouth only, and the number and shape of spinules on their trunk scales is similar to those observed in the juvenile of 
<taxonomicName id="75961CD0BD214B44A01AF7E9B19AE6D4" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[596,767,669,692]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD214B44A01AF7E9B19AE6D4" box="[596,767,669,692]" italics="true" pageId="7" pageNumber="238">C. amirantensis</emphasis>
</taxonomicName>
. However, spinulation of head ridges is much harsher in 
<taxonomicName id="75961CD0BD214B44A31BF7C9B164E6B4" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[341,513,701,724]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD214B44A31BF7C9B164E6B4" box="[341,513,701,724]" italics="true" pageId="7" pageNumber="238">C. amirantensis</emphasis>
</taxonomicName>
, and the spinules on scales on top of head are arranged in parallel rows vs. rather irregularly disposed in juveniles of 
<taxonomicName id="75961CD0BD214B44A0B4F7A9B00FE695" box="[762,874,733,757]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="braueri">
<emphasis id="80E2BB41BD214B44A0B4F7A9B00FE695" box="[762,874,733,757]" italics="true" pageId="7" pageNumber="238">C. braueri</emphasis>
</taxonomicName>
. Furthermore, the juveniles of 
<taxonomicName id="75961CD0BD214B44A2D5F789B268E775" box="[155,269,765,789]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="braueri">
<emphasis id="80E2BB41BD214B44A2D5F789B268E775" box="[155,269,765,789]" italics="true" pageId="7" pageNumber="238">C. braueri</emphasis>
</taxonomicName>
possess a small naked dermal window in front of anus and a filamentous second dorsal-fin ray (both absent in 
<taxonomicName id="75961CD0BD214B44A388F669B116E755" authorityName="Iwamoto, Golani, Baranes, and Goren" authorityYear="2006" box="[454,627,797,821]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="amirantensis">
<emphasis id="80E2BB41BD214B44A388F669B116E755" box="[454,627,797,821]" italics="true" pageId="7" pageNumber="238">C. amirantensis</emphasis>
</taxonomicName>
). We have no juveniles of three other Mascarene species for comparison. The 40–50-mm HL juveniles of 
<taxonomicName id="75961CD0BD214B44A0A5F64AB0F3E735" baseAuthorityName="Alcock" baseAuthorityYear="1894" box="[747,918,829,853]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="flabellispinis">
<emphasis id="80E2BB41BD214B44A0A5F64AB0F3E735" box="[747,918,829,853]" italics="true" pageId="7" pageNumber="238">C. flabellispinis</emphasis>
</taxonomicName>
and 
<taxonomicName id="75961CD0BD214B44A181F64AB75BE735" authorityName="Iwamoto &amp; Anderson" authorityYear="1994" box="[975,1086,830,853]" family="Macrouridae" genus="Coelorinchus" kingdom="Animalia" order="Gadiformes" pageId="7" pageNumber="238" phylum="Chordata" rank="species" species="trunovi">
<emphasis id="80E2BB41BD214B44A181F64AB75BE735" box="[975,1086,830,853]" italics="true" pageId="7" pageNumber="238">C. trunovi</emphasis>
</taxonomicName>
already have underside of head partially scaled.
</paragraph>
</subSubSection>
</treatment>
</document>