246 lines
31 KiB
XML
246 lines
31 KiB
XML
<document id="EA346DEC400AF0B6515376E86D1D8ECD" ID-CLB-Dataset="56026" ID-DOI="10.11646/megataxa.3.1.1" ID-GBIF-Dataset="1ece557d-068b-465b-809e-0fc1110035b3" ID-ISSN="2703-3090" ID-Zenodo-Dep="6422776" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1614076789781" checkinUser="plazi" docAuthor="Nakayama, Naohide" docDate="2020" docId="B711B23FFF0A86CFDA3FC3F6FB07796B" docLanguage="en" docName="megataxa.3.1.1.pdf" docOrigin="Megataxa 3 (1)" docStyle="DocumentStyle:50B6B96D96A55C21793B52C23E95B310.5:Megataxa.2020-.journal_article" docStyleId="50B6B96D96A55C21793B52C23E95B310" docStyleName="Megataxa.2020-.journal_article" docStyleVersion="5" docTitle="Hymenocephalus yamasakiorum Nakayama, Endo & Schwarzhans 2015" docType="treatment" docVersion="8" lastPageNumber="222" masterDocId="4B28CA47FFD68612D915C228FFE77D35" masterDocTitle="Grenadiers (Teleostei: Gadiformes: Macrouridae) of Japan and adjacent waters, a taxonomic monograph" masterLastPageNumber="383" masterPageNumber="1" pageNumber="221" updateTime="1698930971026" updateUser="ExternalLinkService" zenodo-license-document="CC-BY-NC-4.0">
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<mods:title id="F5B84960B17EEF4ABF026620E2CDC3F3">Grenadiers (Teleostei: Gadiformes: Macrouridae) of Japan and adjacent waters, a taxonomic monograph</mods:title>
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<mods:namePart id="DE7E11463EB80D0F5B0473DAA633172F">Nakayama, Naohide</mods:namePart>
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<mods:affiliation id="A661CF973D7FD8A27A47FAB06146658D">Department of Marine Biology, School of Marine Science and Technology, Tokai University, 3 - 20 - 1 Orido, Shimizu, Shizuoka 424 - 8610, Japan ® naonakayama @ tsc. u-tokai. ac. jp or ®</mods:affiliation>
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<mods:nameIdentifier id="B159648520E019350A041E521D4966C1" type="email">gadiformes@gmail.com</mods:nameIdentifier>
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<mods:title id="1595C6FBB2E12F1F10E490D3F9561BEA">Megataxa</mods:title>
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<mods:part id="FFFEE5E6D63EA391BDFBD3FB2F116850">
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<mods:date id="54B7085EBBBEF0B8A83758C065636844">2020</mods:date>
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<mods:number id="6781F953BB97716F604E210694904BEF">2020-11-05</mods:number>
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<mods:identifier id="907854C7317233C47214F0B6138D0087" type="DOI">10.11646/megataxa.3.1.1</mods:identifier>
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<treatment id="B711B23FFF0A86CFDA3FC3F6FB07796B" ID-DOI="http://doi.org/10.5281/zenodo.6455826" ID-GBIF-Taxon="194588070" ID-Zenodo-Dep="6455826" LSID="urn:lsid:plazi:treatment:B711B23FFF0A86CFDA3FC3F6FB07796B" httpUri="http://treatment.plazi.org/id/B711B23FFF0A86CFDA3FC3F6FB07796B" lastPageId="221" lastPageNumber="222" pageId="220" pageNumber="221">
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<subSubSection id="77A250A2FF0A86CEDA3FC3F6FBDE7F2E" pageId="220" pageNumber="221" type="nomenclature">
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<paragraph id="3F070329FF0A86CEDA3FC3F6FBDE7F2E" blockId="220.[810,1451,478,607]" pageId="220" pageNumber="221">
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<taxonomicName id="F8B878AAFF0A86CEDA3FC3F6FBDE7F2E" ID-CoL="3NJ9V" authority="Nakayama, Endo & Schwarzhans, 2015" authorityName="Nakayama, Endo & Schwarzhans" authorityYear="2015" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="220" pageNumber="221" phylum="Chordata" rank="species" species="yamasakiorum">
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<emphasis id="0DCCDF3BFF0A86CEDA3FC3F6FBDE7F2E" bold="true" italics="true" pageId="220" pageNumber="221">
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Hymenocephalus yamasakiorum
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<bibRefCitation id="5B297ED8FF0A86CEDDD9C3F7FBDE7F2E" author="Nakayama, N. & Endo, H. & Schwarzhans, W." pageId="220" pageNumber="221" pagination="504 - 511" refId="ref296265" refString="Nakayama, N., Endo, H. & Schwarzhans, W. (2015 a) A new grenadier of the genus Hymenocephalus from Tosa Bay, southern Japan (Actinopterygii: Gadiformes: Macrouridae). Ichthyological Research, 62, 504 - 511. http: // dx. doi. org / 10.1007 / s 10228 - 015 - 0464 - 9" type="journal article" year="2015">Nakayama, Endo & Schwarzhans, 2015</bibRefCitation>
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</emphasis>
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</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="77A250A2FF0A86CEDA3FC00CFB7B7F08" box="[810,1180,546,574]" pageId="220" pageNumber="221" type="vernacular_names">
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<paragraph id="3F070329FF0A86CEDA3FC00CFB7B7F08" blockId="220.[810,1451,478,607]" box="[810,1180,546,574]" pageId="220" pageNumber="221">[Japanese name: Oguro-sujidara]</paragraph>
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</subSubSection>
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<subSubSection id="77A250A2FF0A86CEDA3FC06DFBB67F6A" box="[810,1105,581,607]" pageId="220" pageNumber="221" type="description">
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<paragraph id="3F070329FF0A86CEDA3FC06DFBB67F6A" blockId="220.[810,1451,478,607]" box="[810,1105,581,607]" pageId="220" pageNumber="221">
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(
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<figureCitation id="A7831FACFF0A86CEDA27C06DFC747F6A" box="[818,915,581,607]" captionStart="FIGURE 146" captionStartId="221.[136,235,855,879]" captionTargetBox="[151,1436,160,822]" captionTargetId="figure-509@221.[151,1436,160,822]" captionTargetPageId="221" captionText="FIGURE 146. Holotype of Hymenocephalus yamasakiorum. BSKU 113692, 26.5 mm HL, 151+ mm TL, Tosa Bay off Aki, Kochi Pref., Pacific, 320–400 m depth. (A) Lateral view; (B) dorsal and (C) ventral views of the head and trunk. Fresh condition. [Photos: reproduced from Nakayama et al. (2015a: fig. 1) with permission from the Ichthyological Society of Japan]" figureDoi="http://doi.org/10.5281/zenodo.6423104" httpUri="https://zenodo.org/record/6423104/files/figure.png" pageId="220" pageNumber="221">Fig. 146</figureCitation>
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; Appendix 3-8F)
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</paragraph>
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</subSubSection>
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||
<subSubSection id="77A250A2FF0A86CEDA3FC0A5FA4E7E3D" pageId="220" pageNumber="221" type="reference_group">
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<paragraph id="3F070329FF0A86CEDA3FC0A5FA4E7E3D" blockId="220.[810,1452,653,777]" pageId="220" pageNumber="221">
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<taxonomicName id="F8B878AAFF0A86CEDA3FC0A5FC207FF1" ID-CoL="3NJ9V" authority="Nakayama, Endo & Schwarzhans, 2015 a: 505" authorityName="Nakayama, Endo & Schwarzhans" authorityPageNumber="505" authorityYear="2015" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="220" pageNumber="221" phylum="Chordata" rank="species" species="yamasakiorum">
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<emphasis id="0DCCDF3BFF0A86CEDA3FC0A5FB867F97" box="[810,1121,653,674]" italics="true" pageId="220" pageNumber="221">Hymenocephalus yamasakiorum</emphasis>
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<bibRefCitation id="5B297ED8FF0A86CEDD73C0A5FC207FF1" author="Nakayama, N. & Endo, H. & Schwarzhans, W." pageId="220" pageNumber="221" pagination="504 - 511" refId="ref296265" refString="Nakayama, N., Endo, H. & Schwarzhans, W. (2015 a) A new grenadier of the genus Hymenocephalus from Tosa Bay, southern Japan (Actinopterygii: Gadiformes: Macrouridae). Ichthyological Research, 62, 504 - 511. http: // dx. doi. org / 10.1007 / s 10228 - 015 - 0464 - 9" type="journal article" year="2015">Nakayama, Endo & Schwarzhans, 2015a:505</bibRefCitation>
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||
</taxonomicName>
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||
, figs. 1–4 (original description;
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<typeStatus id="E003BD8BFF0A86CEDC1DC087FA877FF0" box="[1288,1376,687,709]" pageId="220" pageNumber="221" type="holotype">holotype</typeStatus>
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: BSKU 113692, from Tosa Bay off Aki, in
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<quantity id="F840AECCFF0A86CEDDBAC0F9FAF97FD3" box="[1199,1310,721,742]" metricMagnitude="2" metricUnit="m" metricValue="3.6" metricValueMax="4.0" metricValueMin="3.2" pageId="220" pageNumber="221" unit="m" value="360.0" valueMax="400.0" valueMin="320.0">320–400 m</quantity>
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; new Japanese name: “Oguro-sujidara”);
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<bibRefCitation id="5B297ED8FF0A86CEDD4EC0DBFAF27E3D" author="Motomura, H." box="[1115,1301,755,776]" pageId="220" pageNumber="221" refId="ref295068" refString="Motomura, H. (2020) List of Japan's All Fish Species. Current Standard Japanese and Scientific Names of All Fish Species Recorded from Japanese Waters. The Kagoshima University Museum, Kagoshima, 560 pp. [In Japanese.]" type="book" year="2020">Motomura 2020:39</bibRefCitation>
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(listed;
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<collectingCountry id="47AF43B9FF0A86CEDC71C0DBFA787E3D" box="[1380,1439,755,776]" name="Japan" pageId="220" pageNumber="221">Japan</collectingCountry>
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).
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="77A250A2FF0A86CEDA3FC11BFB8479D0" pageId="220" pageNumber="221" type="diagnosis">
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<paragraph id="3F070329FF0A86CEDA3FC11BFB8479D0" blockId="220.[810,1452,819,2070]" pageId="220" pageNumber="221">
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<emphasis id="0DCCDF3BFF0A86CEDA3FC11BFC467E78" bold="true" box="[810,929,819,845]" pageId="220" pageNumber="221">Diagnosis.</emphasis>
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A species of
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<taxonomicName id="F8B878AAFF0A86CEDD26C11BFB177E78" authorityName="Giglioli" authorityYear="1884" box="[1075,1264,819,845]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="220" pageNumber="221" phylum="Chordata" rank="genus">
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<emphasis id="0DCCDF3BFF0A86CEDD26C11BFB177E78" box="[1075,1264,819,845]" italics="true" pageId="220" pageNumber="221">Hymenocephalus</emphasis>
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</taxonomicName>
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with 9 pelvic-fin rays; barbel very long, length 73% PRL, its tip extending beyond vertical through hind margin of orbit when depressed; snout high, not depressed, length 37% PRL; orbit diameter 43% PRL; interorbital space 31% PRL; first dorsal-fin rays II,10; pectoral-fin rays i16–i17; gill rakers on first arch (outer/inner) 14/20, on second arch 20/19; pyloric caeca 15; trunk blackish dorsally, but the dark area abruptly ending posterior to first dorsal-fin base; dorsal half of tail prominently darker posteriorly, but ventral half completely lacking black melanophores; caudal vertebrae barely visible externally when fresh; ostial and caudal colliculi of otolith not fused.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="77A250A2FF0A86CEDA4AC6C5FB3378BA" pageId="220" pageNumber="221" type="materials_examined">
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||
<paragraph id="3F070329FF0A86CEDA4AC6C5FB3378BA" blockId="220.[810,1452,819,2070]" pageId="220" pageNumber="221">
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<emphasis id="0DCCDF3BFF0A86CEDA4AC6C5FBB17832" bold="true" box="[863,1110,1261,1287]" pageId="220" pageNumber="221">Material examined.</emphasis>
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<materialsCitation id="8FD00974FF0A86CEDD7EC6C5FB3378BA" ID-GBIF-Occurrence="3750955549" collectingDate="2014-04-08" collectorName="V Kosei-maru & N. Nakayama" country="Japan" elevation="360" location="Aki" municipality="Tosa Bay" pageId="220" pageNumber="221" specimenCount="1" typeStatus="holotype">
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<specimenCount id="29BEC8A0FF0A86CEDD7EC6C5FB1D7832" box="[1131,1274,1261,1287]" pageId="220" pageNumber="221" type="generic">1 specimen</specimenCount>
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.
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<emphasis id="0DCCDF3BFF0A86CEDC06C6C5FA4C7832" bold="true" box="[1299,1451,1261,1287]" pageId="220" pageNumber="221">
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<typeStatus id="E003BD8BFF0A86CEDC06C6C5FA677832" box="[1299,1408,1261,1287]" pageId="220" pageNumber="221" type="holotype">Holotype</typeStatus>
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of
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</emphasis>
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<taxonomicName id="F8B878AAFF0A86CEDA3FC727FAF1781C" authority=": BSKU" authorityName="BSKU" box="[810,1302,1295,1322]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="220" pageNumber="221" phylum="Chordata" rank="species" species="yamasakiorum">
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<emphasis id="0DCCDF3BFF0A86CEDA3FC727FB5E781C" bold="true" box="[810,1209,1295,1322]" pageId="220" pageNumber="221">
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<emphasis id="0DCCDF3BFF0A86CEDA3FC727FB48781F" bold="true" box="[810,1199,1295,1322]" italics="true" pageId="220" pageNumber="221">Hymenocephalus yamasakiorum</emphasis>
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:
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</emphasis>
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BSKU
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</taxonomicName>
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113692 (1,
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<quantity id="F840AECCFF0A86CEDA3FC719FC777879" box="[810,912,1329,1356]" metricMagnitude="-2" metricUnit="m" metricValue="2.65" pageId="220" pageNumber="221" unit="mm" value="26.5">26.5 mm</quantity>
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HL, 151+ mm TL), off
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<location id="3A6755F2FF0A86CEDDBCC719FB31787E" LSID="urn:lsid:plazi:treatment:B711B23FFF0A86CFDA3FC3F6FB07796B:3A6755F2FF0A86CEDDBCC719FB31787E" box="[1193,1238,1329,1355]" country="Japan" municipality="Tosa Bay" name="Aki" pageId="220" pageNumber="221">Aki</location>
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, Kochi Pref.,
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<collectingMunicipality id="DF639953FF0A86CEDC62C71AFCBF785B" pageId="220" pageNumber="221">Tosa Bay</collectingMunicipality>
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,
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<collectingCountry id="47AF43B9FF0A86CEDA73C77CFC4E785B" box="[870,937,1364,1390]" name="Japan" pageId="220" pageNumber="221">Japan</collectingCountry>
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,
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<quantity id="F840AECCFF0A86CEDAA3C77BFBDD785B" box="[950,1082,1363,1390]" metricMagnitude="2" metricUnit="m" metricValue="3.6" metricValueMax="4.0" metricValueMin="3.2" pageId="220" pageNumber="221" unit="m" value="360.0" valueMax="400.0" valueMin="320.0">
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<elevation id="B495E41AFF0A86CEDAA3C77BFBDD785B" box="[950,1082,1363,1390]" metricMagnitude="2" metricUnit="m" metricValue="3.6" metricValueMax="4.0" metricValueMin="3.2" pageId="220" pageNumber="221" unit="m" value="360.0" valueMax="400.0" valueMin="320.0">320–400 m</elevation>
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||
</quantity>
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||
, F/
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||
<collectorName id="924D66FFFF0A86CEDD75C77BFAE67858" box="[1120,1281,1363,1389]" pageId="220" pageNumber="221">
|
||
V
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||
<emphasis id="0DCCDF3BFF0A86CEDD68C77CFAE67858" box="[1149,1281,1364,1389]" italics="true" pageId="220" pageNumber="221">Kosei-maru</emphasis>
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||
</collectorName>
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||
, bottom trawl, coll.
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<collectorName id="924D66FFFF0A86CEDA77C75EFC1B78BA" box="[866,1020,1397,1424]" pageId="220" pageNumber="221">N. Nakayama</collectorName>
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||
<emphasis id="0DCCDF3BFF0A86CEDD16C75EFBA578BA" box="[1027,1090,1397,1423]" italics="true" pageId="220" pageNumber="221">et al.,</emphasis>
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||
<date id="4B0625E9FF0A86CEDD5CC75DFB3778BA" box="[1097,1232,1397,1424]" pageId="220" pageNumber="221" value="2014-04-08">
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||
<collectingDate id="5B42DC01FF0A86CEDD5CC75DFB3778BA" box="[1097,1232,1397,1424]" pageId="220" pageNumber="221" value="2014-04-08">8 Apr. 2014</collectingDate>
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||
</date>
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||
.
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||
</materialsCitation>
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||
</paragraph>
|
||
</subSubSection>
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<subSubSection id="77A250A2FF0A86CFDA4AC7BFFE297997" lastPageId="221" lastPageNumber="222" pageId="220" pageNumber="221" type="description">
|
||
<paragraph id="3F070329FF0A86CEDA4AC7BFFBD07B2D" blockId="220.[810,1452,819,2070]" pageId="220" pageNumber="221">
|
||
<emphasis id="0DCCDF3BFF0A86CEDA4AC7BFFB437887" bold="true" box="[863,1188,1431,1458]" pageId="220" pageNumber="221">Counts and measurements.</emphasis>
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Counts: first dorsal-fin rays II,10; pectoral-fin rays i16–i17; pelvic-fin rays 9; gill rakers on first arch (outer/inner) 14/20, on second arch 20/19; pyloric caeca 15.
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</paragraph>
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<paragraph id="3F070329FF0A86CFDA4AC437FD1E794A" blockId="220.[810,1452,819,2070]" lastBlockId="221.[136,778,1023,2070]" lastPageId="221" lastPageNumber="222" pageId="220" pageNumber="221">The following measurements are in % of HL, followed by those in % of PRL in parentheses: snout length 28 (37); orbit diameter 33 (43); postorbital length 45 (59); postrostral length 76; orbit–preopercle distance 40 (52); suborbital width 9 (12); upper-jaw length 51 (67); length of rictus 46 (60); length of premaxillary tooth band 42 (55); preoral length 12 (16); distance between tip and lateral angle of snout 16 (21); snout width 26 (35); internasal width 18 (24); interorbital width 24 (31); body width over pectoral-fin bases 46 (61); body depth at first dorsal-fin origin 63 (82); body depth at anal-fin origin 49 (64); prepelvic length 105 (138); preanal length 162 (212); isthmus–pelvic distance 49 (64); isthmus–anal distance 105 (138); pelvic–anal distance 60 (79); pelvicfin length 78 (102); pectoral-fin length 53 (70); predorsal length 102 (133); height of first dorsal fin 82 (107); length of first dorsal-fin base 35 (46); interdorsal length 77 (101); length of gill slit 30 (39); length of posterior nostril 6 (8); barbel length 55 (73); length of pyloric caecum 14 (19).</paragraph>
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<caption id="6BC753A1FF0B86CFD99DC17FFB2D7E87" ID-DOI="http://doi.org/10.5281/zenodo.6423104" ID-Zenodo-Dep="6423104" httpUri="https://zenodo.org/record/6423104/files/figure.png" pageId="221" pageNumber="222" startId="221.[136,235,855,879]" targetBox="[151,1436,160,822]" targetPageId="221">
|
||
<paragraph id="3F070329FF0B86CFD99DC17FFB2D7E87" blockId="221.[136,1452,855,947]" pageId="221" pageNumber="222">
|
||
<emphasis id="0DCCDF3BFF0B86CFD99DC17FFEFB7E5A" bold="true" box="[136,284,855,879]" pageId="221" pageNumber="222">FIGURE 146.</emphasis>
|
||
Holotype of
|
||
<taxonomicName id="F8B878AAFF0B86CFD8B4C17FFD0C7E5A" box="[417,747,855,879]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="yamasakiorum">
|
||
<emphasis id="0DCCDF3BFF0B86CFD8B4C17FFD0C7E5A" box="[417,747,855,879]" italics="true" pageId="221" pageNumber="222">Hymenocephalus yamasakiorum</emphasis>
|
||
</taxonomicName>
|
||
. BSKU 113692, 26.5 mm HL, 151+ mm TL, Tosa Bay off Aki, Kochi Pref., Pacific, 320–400 m depth. (A) Lateral view; (B) dorsal and (C) ventral views of the head and trunk. Fresh condition. [Photos: reproduced from
|
||
<bibRefCitation id="5B297ED8FF0B86CFD82DC1B3FDC97E86" author="Nakayama, N. & Endo, H. & Schwarzhans, W." box="[312,558,923,947]" pageId="221" pageNumber="222" pagination="504 - 511" refId="ref296265" refString="Nakayama, N., Endo, H. & Schwarzhans, W. (2015 a) A new grenadier of the genus Hymenocephalus from Tosa Bay, southern Japan (Actinopterygii: Gadiformes: Macrouridae). Ichthyological Research, 62, 504 - 511. http: // dx. doi. org / 10.1007 / s 10228 - 015 - 0464 - 9" type="journal article" year="2015">
|
||
Nakayama
|
||
<emphasis id="0DCCDF3BFF0B86CFD8BEC1B4FE397E86" box="[427,478,923,947]" italics="true" pageId="221" pageNumber="222">et al.</emphasis>
|
||
(2015a
|
||
</bibRefCitation>
|
||
: fig. 1) with permission from the Ichthyological Society of Japan]
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="3F070329FF0B86CFD9A8C6AFFE297997" blockId="221.[136,778,1023,2070]" box="[189,462,1159,1186]" pageId="221" pageNumber="222">
|
||
<emphasis id="0DCCDF3BFF0B86CFD9A8C6AFFF127994" bold="true" box="[189,245,1159,1185]" pageId="221" pageNumber="222">Size.</emphasis>
|
||
At least
|
||
<quantity id="F840AECCFF0B86CFD84CC6AFFE797997" box="[345,414,1159,1186]" metricMagnitude="-1" metricUnit="m" metricValue="1.5" pageId="221" pageNumber="222" unit="cm" value="15.0">15 cm</quantity>
|
||
TL.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="77A250A2FF0B86CFD9A8C681FD1879D3" pageId="221" pageNumber="222" type="distribution">
|
||
<paragraph id="3F070329FF0B86CFD9A8C681FD1879D3" blockId="221.[136,778,1023,2070]" pageId="221" pageNumber="222">
|
||
<emphasis id="0DCCDF3BFF0B86CFD9A8C681FEB779F6" bold="true" box="[189,336,1193,1219]" pageId="221" pageNumber="222">Distribution.</emphasis>
|
||
So far known only from Tosa Bay off Aki at a depth of about
|
||
<quantity id="F840AECCFF0B86CFD841C6E3FE2979D3" box="[340,462,1227,1254]" metricMagnitude="2" metricUnit="m" metricValue="3.6" metricValueMax="4.0" metricValueMin="3.2" pageId="221" pageNumber="222" unit="m" value="360.0" valueMax="400.0" valueMin="320.0">320–400 m</quantity>
|
||
(Appendix 3-8F). Very rare.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="77A250A2FF0B86CFD9A8C6C5FB07796B" pageId="221" pageNumber="222" type="discussion">
|
||
<paragraph id="3F070329FF0B86CFD9A8C6C5FB07796B" blockId="221.[136,778,1023,2070]" lastBlockId="221.[810,1451,1023,1118]" pageId="221" pageNumber="222">
|
||
<emphasis id="0DCCDF3BFF0B86CFD9A8C6C5FCED7832" bold="true" box="[189,778,1261,1287]" pageId="221" pageNumber="222">Remarks, relationships, and comparisons.</emphasis>
|
||
<taxonomicName id="F8B878AAFF0B86CFD99DC727FE1E781C" box="[136,505,1295,1321]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="yamasakiorum">
|
||
<emphasis id="0DCCDF3BFF0B86CFD99DC727FE1E781C" box="[136,505,1295,1321]" italics="true" pageId="221" pageNumber="222">Hymenocephalus yamasakiorum</emphasis>
|
||
</taxonomicName>
|
||
was recently described from a single specimen collected from Tosa Bay,
|
||
<collectingCountry id="47AF43B9FF0B86CFDBDFC71AFCED7879" box="[714,778,1330,1356]" name="Japan" pageId="221" pageNumber="222">Japan</collectingCountry>
|
||
(
|
||
<figureCitation id="A7831FACFF0B86CFD985C77BFF11785B" box="[144,246,1363,1390]" captionStart="FIGURE 146" captionStartId="221.[136,235,855,879]" captionTargetBox="[151,1436,160,822]" captionTargetId="figure-509@221.[151,1436,160,822]" captionTargetPageId="221" captionText="FIGURE 146. Holotype of Hymenocephalus yamasakiorum. BSKU 113692, 26.5 mm HL, 151+ mm TL, Tosa Bay off Aki, Kochi Pref., Pacific, 320–400 m depth. (A) Lateral view; (B) dorsal and (C) ventral views of the head and trunk. Fresh condition. [Photos: reproduced from Nakayama et al. (2015a: fig. 1) with permission from the Ichthyological Society of Japan]" figureDoi="http://doi.org/10.5281/zenodo.6423104" httpUri="https://zenodo.org/record/6423104/files/figure.png" pageId="221" pageNumber="222">Fig. 146</figureCitation>
|
||
), and it belongs to the
|
||
<taxonomicName id="F8B878AAFF0B86CFDB19C77CFD7C7858" authorityName="Schwarzhans" authorityYear="2014" box="[524,667,1364,1389]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="iwamotoi">
|
||
<emphasis id="0DCCDF3BFF0B86CFDB19C77CFD7C7858" box="[524,667,1364,1389]" italics="true" pageId="221" pageNumber="222">H. iwamotoi</emphasis>
|
||
</taxonomicName>
|
||
group as defined by
|
||
<bibRefCitation id="5B297ED8FF0B86CFD810C75DFE0D78BA" author="Schwarzhans, W." box="[261,490,1397,1423]" pageId="221" pageNumber="222" pagination="1 - 73" refId="ref299271" refString="Schwarzhans, W. (2014) Head and otolith morphology of the genera Hymenocephalus, Hymenogadus and Spicomacrurus (Macrouridae), with the description of three new species. Zootaxa, 3888, 1 - 73. http: // dx. doi. org / 10.11646 / zootaxa. 3888.1.1" type="journal article" year="2014">Schwarzhans (2014)</bibRefCitation>
|
||
(
|
||
<bibRefCitation id="5B297ED8FF0B86CFD8E2C75DFD1978A5" author="Nakayama, N. & Endo, H. & Schwarzhans, W." box="[503,766,1397,1424]" pageId="221" pageNumber="222" pagination="504 - 511" refId="ref296265" refString="Nakayama, N., Endo, H. & Schwarzhans, W. (2015 a) A new grenadier of the genus Hymenocephalus from Tosa Bay, southern Japan (Actinopterygii: Gadiformes: Macrouridae). Ichthyological Research, 62, 504 - 511. http: // dx. doi. org / 10.1007 / s 10228 - 015 - 0464 - 9" type="journal article" year="2015">
|
||
Nakayama
|
||
<emphasis id="0DCCDF3BFF0B86CFDB62C75EFD4878BA" box="[631,687,1397,1423]" italics="true" pageId="221" pageNumber="222">et al.</emphasis>
|
||
2015a
|
||
</bibRefCitation>
|
||
). In Japanese waters, the species might be confused with
|
||
<taxonomicName id="F8B878AAFF0B86CFD99DC792FEC878E6" authorityName="Gunther" authorityYear="1887" box="[136,303,1465,1491]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="longibarbis">
|
||
<emphasis id="0DCCDF3BFF0B86CFD99DC792FEC878E6" box="[136,303,1465,1491]" italics="true" pageId="221" pageNumber="222">H. longibarbis</emphasis>
|
||
</taxonomicName>
|
||
by sharing a long chin barbel (73% and 53–72% PRL in
|
||
<taxonomicName id="F8B878AAFF0B86CFD846C7F4FDC778C0" box="[339,544,1499,1525]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="yamasakiorum">
|
||
<emphasis id="0DCCDF3BFF0B86CFD846C7F4FDC778C0" box="[339,544,1499,1525]" italics="true" pageId="221" pageNumber="222">H. yamasakiorum</emphasis>
|
||
</taxonomicName>
|
||
and
|
||
<taxonomicName id="F8B878AAFF0B86CFDB74C7F4FCED78C0" authorityName="Gunther" authorityYear="1887" box="[609,778,1499,1525]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="longibarbis">
|
||
<emphasis id="0DCCDF3BFF0B86CFDB74C7F4FCED78C0" box="[609,778,1499,1525]" italics="true" pageId="221" pageNumber="222">H. longibarbis</emphasis>
|
||
</taxonomicName>
|
||
respectively), but they are readily separable by a difference in physiognomy: in
|
||
<taxonomicName id="F8B878AAFF0B86CFD872C408FDCA7B0C" box="[359,557,1567,1593]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="yamasakiorum">
|
||
<emphasis id="0DCCDF3BFF0B86CFD872C408FDCA7B0C" box="[359,557,1567,1593]" italics="true" pageId="221" pageNumber="222">H. yamasakiorum</emphasis>
|
||
</taxonomicName>
|
||
, the tip of the snout is high and moderately protrudes beyond the upper jaw giving a slightly pointed appearance to the snout (
|
||
<figureCitation id="A7831FACFF0B86CFDBC9C44BFF2D7B95" captionStart="FIGURE 146" captionStartId="221.[136,235,855,879]" captionTargetBox="[151,1436,160,822]" captionTargetId="figure-509@221.[151,1436,160,822]" captionTargetPageId="221" captionText="FIGURE 146. Holotype of Hymenocephalus yamasakiorum. BSKU 113692, 26.5 mm HL, 151+ mm TL, Tosa Bay off Aki, Kochi Pref., Pacific, 320–400 m depth. (A) Lateral view; (B) dorsal and (C) ventral views of the head and trunk. Fresh condition. [Photos: reproduced from Nakayama et al. (2015a: fig. 1) with permission from the Ichthyological Society of Japan]" figureDoi="http://doi.org/10.5281/zenodo.6423104" httpUri="https://zenodo.org/record/6423104/files/figure.png" pageId="221" pageNumber="222">Fig. 146A</figureCitation>
|
||
), whereas the snout of
|
||
<taxonomicName id="F8B878AAFF0B86CFD8CBC4AEFD627BAA" authorityName="Gunther" authorityYear="1887" box="[478,645,1669,1695]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="longibarbis">
|
||
<emphasis id="0DCCDF3BFF0B86CFD8CBC4AEFD627BAA" box="[478,645,1669,1695]" italics="true" pageId="221" pageNumber="222">H. longibarbis</emphasis>
|
||
</taxonomicName>
|
||
is low and greatly depressed, barely extending beyond the upper jaw (
|
||
<figureCitation id="A7831FACFF0B86CFD985C4E1FEEF7BD1" box="[144,264,1737,1764]" captionStart="FIGURE 139" captionStartId="213.[136,235,923,947]" captionTargetBox="[151,1436,159,877]" captionTargetId="figure-200@213.[151,1436,159,877]" captionTargetPageId="213" captionText="FIGURE 139. Fresh specimens of Hymenocephalus longibarbis. (A) BSKU 92382, 44.7 mm HL, 239+ mm TL, Mimase fish market, Kochi Pref., Pacific; (B–C) BSKU 112441, 51.1 mm HL, 267+ mm TL, Tosa Bay off Susaki, Kochi Pref., Pacific. (A) Lateral view; (B) dorsal and (C) ventral views of the head and trunk. [Photos: N. Nakayama]" figureDoi="http://doi.org/10.5281/zenodo.6423090" httpUri="https://zenodo.org/record/6423090/files/figure.png" pageId="221" pageNumber="222">Fig. 139A</figureCitation>
|
||
). Body pigmentation is also different between the two species; in
|
||
<taxonomicName id="F8B878AAFF0B86CFD84DC4C4FDFA7A30" box="[344,541,1771,1797]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="yamasakiorum">
|
||
<emphasis id="0DCCDF3BFF0B86CFD84DC4C4FDFA7A30" box="[344,541,1771,1797]" italics="true" pageId="221" pageNumber="222">H. yamasakiorum</emphasis>
|
||
</taxonomicName>
|
||
, the dorsal half of the tail is abruptly darker posteriorly, but is uniformly dusky in
|
||
<taxonomicName id="F8B878AAFF0B86CFD9B3C518FEAC7A7C" authorityName="Gunther" authorityYear="1887" box="[166,331,1839,1865]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="longibarbis">
|
||
<emphasis id="0DCCDF3BFF0B86CFD9B3C518FEAC7A7C" box="[166,331,1839,1865]" italics="true" pageId="221" pageNumber="222">H. longibarbis</emphasis>
|
||
</taxonomicName>
|
||
. Regarding meristic and morphometric characters,
|
||
<taxonomicName id="F8B878AAFF0B86CFD812C57AFE297A59" box="[263,462,1874,1900]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="yamasakiorum">
|
||
<emphasis id="0DCCDF3BFF0B86CFD812C57AFE297A59" box="[263,462,1874,1900]" italics="true" pageId="221" pageNumber="222">H. yamasakiorum</emphasis>
|
||
</taxonomicName>
|
||
differs from
|
||
<taxonomicName id="F8B878AAFF0B86CFDB75C57AFCE47A59" authorityName="Gunther" authorityYear="1887" box="[608,771,1874,1900]" class="Actinopterygii" family="Macrouridae" genus="Hymenocephalus" kingdom="Animalia" order="Gadiformes" pageId="221" pageNumber="222" phylum="Chordata" rank="species" species="longibarbis">
|
||
<emphasis id="0DCCDF3BFF0B86CFDB75C57AFCE47A59" box="[608,771,1874,1900]" italics="true" pageId="221" pageNumber="222">H. longibarbis</emphasis>
|
||
</taxonomicName>
|
||
, in having more pelvic- (9 vs. 8) and pectoral-fin rays (i16– i17 vs. i12–i16), fewer pyloric caeca (15 vs. 18–25), a longer snout (37% PRL vs. 26–33%), a broader interorbital space (31% PRL vs. 18–27%), a shorter pelvic fin (102% PRL vs. 109–153%), and a narrower pelvic–anal distance (79% vs. 87–115%). See the original description given by
|
||
<bibRefCitation id="5B297ED8FF0B86CFDA3FC609FBDC7909" author="Nakayama, N. & Endo, H. & Schwarzhans, W." box="[810,1083,1057,1084]" pageId="221" pageNumber="222" pagination="504 - 511" refId="ref296265" refString="Nakayama, N., Endo, H. & Schwarzhans, W. (2015 a) A new grenadier of the genus Hymenocephalus from Tosa Bay, southern Japan (Actinopterygii: Gadiformes: Macrouridae). Ichthyological Research, 62, 504 - 511. http: // dx. doi. org / 10.1007 / s 10228 - 015 - 0464 - 9" type="journal article" year="2015">
|
||
Nakayama
|
||
<emphasis id="0DCCDF3BFF0B86CFDAB2C60AFC39790E" box="[935,990,1057,1083]" italics="true" pageId="221" pageNumber="222">et al.</emphasis>
|
||
(2015a)
|
||
</bibRefCitation>
|
||
for further morphological details and comparisons with other congeners.
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |