157 lines
17 KiB
XML
157 lines
17 KiB
XML
<document id="3FF4DE2714CE03E6021F94391FF4A955" ID-DOI="10.5281/zenodo.175296" ID-GBIF-Dataset="e2a01bd5-e044-4bd8-bfbe-e95cb0480f75" ID-ISSN="11755326" ID-Zenodo-Dep="175296" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1459803997981" checkinUser="plazi" docAuthor="Ebert, David A. & Davis, Chante D." docDate="2007" docId="03E52745D7323815FFBB4E4CFE84FC18" docLanguage="en" docName="zt01393p018.pdf" docOrigin="Zootaxa 1393" docStyle="DocumentStyle:6581673A57F01A3145754A1E615EDFF0.4:Zootaxa.2007-2008.journal_article" docStyleId="6581673A57F01A3145754A1E615EDFF0" docStyleName="Zootaxa.2007-2008.journal_article" docStyleVersion="4" docTitle="Bathyraja microtrachys Osburn & Nichols 1916" docType="treatment" docVersion="9" lastPageNumber="7" masterDocId="FFDC5F3DD7373813FF2C4949FFCEFFCA" masterDocTitle="Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific" masterLastPageNumber="18" masterPageNumber="1" pageNumber="6" updateTime="1698220328634" updateUser="plazi">
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<mods:titleInfo id="BF5BEFBB59D99571AFF1813832E40D5D">
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<mods:title id="420C5ADCA1A2130D846A4374438F2BC3">Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific</mods:title>
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<mods:name id="1CBFE2715746D4258BB17D11B84A232A" type="personal">
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<mods:roleTerm id="6FA40C1E52C0260EE16C9E29976CAE7A">Author</mods:roleTerm>
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<mods:namePart id="FA936A689FE2CF5C052E0932A59BF161">Ebert, David A.</mods:namePart>
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<mods:name id="0EA01ED5660D6BD742B857228586372D" type="personal">
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<mods:roleTerm id="9D16989AD4E98C3239F5AABB1DED4A0A">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="F0C162D1D8F8C463131E4596D99D2C34">Davis, Chante D.</mods:namePart>
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<mods:typeOfResource id="53D8B74CCBCFE72391A464447E5EBBB1">text</mods:typeOfResource>
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<mods:title id="F9C99F68D9FC66FBEFE598811003B68F">Zootaxa</mods:title>
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<mods:part id="7FEEF7D24EF47E692D821B23C9BEDD86">
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<mods:date id="29872FA85C8EC90F29945E09B0C71616">2007</mods:date>
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<mods:detail id="1AEED7EBD6846977266CC8B919F32A63" type="volume">
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<mods:number id="3E51F10B5E994AF32D2F8703C23FBE9F">1393</mods:number>
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<mods:start id="01BC4811729B81EE5C7185D2D36BCEFE">1</mods:start>
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<mods:end id="009BF15E44286B4FFD7D30BC48079399">18</mods:end>
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<mods:classification id="610B69B22A3655F562E12E0EB48C0565">journal article</mods:classification>
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<mods:identifier id="FB53DB057B23613AD12E8D8209F61F5E" type="DOI">10.5281/zenodo.175296</mods:identifier>
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<mods:identifier id="6DB43FC6E046526328D883730B481AA1" type="ISSN">11755326</mods:identifier>
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<mods:identifier id="FA4D5905BE200B698A533624A4BCC6C0" type="Zenodo-Dep">175296</mods:identifier>
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<treatment id="03E52745D7323815FFBB4E4CFE84FC18" ID-DOI="http://doi.org/10.5281/zenodo.6246891" ID-GBIF-Taxon="119352606" ID-Zenodo-Dep="6246891" LSID="urn:lsid:plazi:treatment:03E52745D7323815FFBB4E4CFE84FC18" httpUri="http://treatment.plazi.org/id/03E52745D7323815FFBB4E4CFE84FC18" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6">
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<subSubSection id="C356C5D8D7323816FFBB4E4CFD33F8D5" box="[151,765,1797,1823]" pageId="5" pageNumber="6" type="nomenclature">
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<paragraph id="8BF39653D7323816FFBB4E4CFD33F8D5" blockId="5.[151,765,1797,1823]" box="[151,765,1797,1823]" pageId="5" pageNumber="6">
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<heading id="D0BB213FD7323816FFBB4E4CFD33F8D5" bold="true" box="[151,765,1797,1823]" fontSize="11" level="1" pageId="5" pageNumber="6" reason="1">
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<taxonomicName id="4C4CEDD0D7323816FFBB4E4CFD33F8D5" ID-CoL="793LX" authority="Osburn & Nichols, 1916" authorityName="Osburn & Nichols" authorityYear="1916" box="[151,765,1797,1823]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="microtrachys">
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<emphasis id="B9384A41D7323816FFBB4E4CFD33F8D5" bold="true" box="[151,765,1797,1823]" pageId="5" pageNumber="6">
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<emphasis id="B9384A41D7323816FFBB4E4CFE7BF8D5" bold="true" box="[151,437,1797,1823]" italics="true" pageId="5" pageNumber="6">Bathyraja microtrachys</emphasis>
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(
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<bibRefCitation id="EFDDEBA2D7323816FEE84E4CFD3AF8D5" author="Osburn" box="[452,756,1797,1823]" pageId="5" pageNumber="18" refString="Osburn, R. C. & Nichols, J. T. (1916) Shore fishes collected by the ' Albatross' expedition in Lower California with descriptions of new species. Bulletin of the American Museum of Natural History, 35 (16), 139 - 181." type="journal article" year="1916">Osburn & Nichols, 1916</bibRefCitation>
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)
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</emphasis>
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</taxonomicName>
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</heading>
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</paragraph>
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</subSubSection>
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<subSubSection id="C356C5D8D7323815FFBB4E19FEB2FE98" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6" type="description">
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<paragraph id="8BF39653D7323815FFBB4E19FEB2FE98" blockId="5.[151,1439,1872,2018]" lastBlockId="6.[151,1437,152,978]" lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6">
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<emphasis id="B9384A41D7323816FFBB4E19FEE6F8A0" bold="true" box="[151,296,1872,1898]" pageId="5" pageNumber="6">Description</emphasis>
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: The egg cases of
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<taxonomicName id="4C4CEDD0D7323816FD394E18FCE1F8A0" box="[533,815,1873,1898]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="5" pageNumber="6" phylum="Chordata" rank="species" species="microtrachys">
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<emphasis id="B9384A41D7323816FD394E18FCE1F8A0" box="[533,815,1873,1898]" italics="true" pageId="5" pageNumber="6">Bathyraja microtrachys</emphasis>
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</taxonomicName>
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(
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<figureCitation id="13778AD6D7323816FC6E4E19FC64F8A0" box="[834,938,1872,1898]" captionStart="FIGURE 5" captionStartId="6.[151,255,1943,1967]" captionText="FIGURE 5. Egg case of Bathyraja microtrachys. Scale bar 20 mm." pageId="5" pageNumber="6">Figure 5</figureCitation>
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) are small,
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<quantity id="4CB43BB6D7323816FB134E19FB2EF8A0" box="[1087,1248,1872,1898]" metricMagnitude="-2" metricUnit="m" metricValue="8.0" metricValueMax="8.1" metricValueMin="7.9" pageId="5" pageNumber="6" unit="mm" value="80.0" valueMax="81.0" valueMin="79.0">79 to 81 mm</quantity>
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in length, with MAW about 63–64% of ECL. The egg case surface is coarsely striated, with irregular rasplike denticles, making its texture very rough to the touch. LKW is very narrow, <5% of MAW and not extending onto horns. Anterior apron border of egg case broad, deeply concave, anterior horns robust at base, but flattening towards tips and becoming threadlike, tips curving dorsally and back towards egg case. Posterior apron is nearly straight, broad, and transverse, width similar to anterior. Posterior horns robust at base, very long, about 66% length of anteriors and about 1.1 times ECL, curved inwards, each tapering to a threadlike tip. Attachment fibers present, extending length of lateral keel. Egg cases removed from a single preserved specimen were a dark golden brown.
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</paragraph>
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</subSubSection>
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<subSubSection id="C356C5D8D7313815FFEA4816FC4AFC48" pageId="6" pageNumber="7" type="discussion">
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<paragraph id="8BF39653D7313815FFEA4816FDA0FDD0" blockId="6.[151,1437,152,978]" pageId="6" pageNumber="7">
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<emphasis id="B9384A41D7313815FFEA4816FEF6FEB3" bold="true" box="[198,312,351,377]" pageId="6" pageNumber="7">Remarks</emphasis>
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: This is the first confirmed record, and description, of the egg case of this species. The egg cases described here were removed
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<emphasis id="B9384A41D7313815FD6E48C1FD50FE6B" box="[578,670,392,417]" italics="true" pageId="6" pageNumber="7">in utero</emphasis>
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from a
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<quantity id="4CB43BB6D7313815FDD248C1FC90FE68" box="[766,862,392,418]" metricMagnitude="-1" metricUnit="m" metricValue="6.279999999999999" pageId="6" pageNumber="7" unit="cm" value="62.8">62.8 cm</quantity>
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TL specimen (SIO 8780).
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<bibRefCitation id="EFDDEBA2D7313815FB8C48C1FA52FE68" author="Cox" box="[1184,1436,392,418]" pageId="6" pageNumber="17" refString="Cox, K. W. (1963) Egg cases of some elasmobranchs and a cyclostome from Californian waters. California Fish & Game, 49, 271 - 289." type="journal article" year="1963">
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Cox (1963:
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<figureCitation id="13778AD6D7313815FA0348C1FA5DFE68" box="[1327,1427,392,418]" captionStart="FIGURE 7" captionStartId="8.[151,255,1859,1883]" captionTargetBox="[443,1140,937,1842]" captionTargetId="figure@8.[443,1144,937,1844]" captionTargetPageId="8" captionText="FIGURE 7. Egg case of Bathyraja trachura. Arrow denotes crossbar (broken). Scale bar 20 mm." httpUri="https://zenodo.org/record/175298/files/figure.png" pageId="6" pageNumber="7">Figure 7</figureCitation>
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)
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</bibRefCitation>
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suggested that the egg case he described and illustrated as
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<taxonomicName id="4C4CEDD0D7313815FC1248F9FC0AFE03" box="[830,964,432,457]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="trachura">
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<emphasis id="B9384A41D7313815FC1248F9FC0AFE03" box="[830,964,432,457]" italics="true" pageId="6" pageNumber="7">B. trachura</emphasis>
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</taxonomicName>
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may eventually prove to be this species. However, the term embryo that was removed from that egg case (CAS 25617), and described below, appear to be that of
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<taxonomicName id="4C4CEDD0D7313815FE214B49FDA4FDD0" authority="Ebert, 2005" authorityName="Ebert" authorityYear="2005" box="[269,618,512,538]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="spinossisima">
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<emphasis id="B9384A41D7313815FE214B49FE0DFDD3" box="[269,451,512,537]" italics="true" pageId="6" pageNumber="7">B. spinossisima</emphasis>
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(
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<bibRefCitation id="EFDDEBA2D7313815FEFE4B49FDACFDD0" author="Ebert" box="[466,610,512,538]" pageId="6" pageNumber="18" refString="Ebert, D. A. (2005) Reproductive biology of skates, Bathyraja (Ishiyama), along the eastern Bering Sea continental slope. Journal of Fish Biology, 66, 618 - 649." type="journal article" year="2005">Ebert, 2005</bibRefCitation>
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)
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</taxonomicName>
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.
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</paragraph>
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<paragraph id="8BF39653D7313815FFEA4B61FC91FCC0" blockId="6.[151,1437,152,978]" pageId="6" pageNumber="7">
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Until recently this species had been considered a synonym of
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<taxonomicName id="4C4CEDD0D7313815FCB54B61FB09FD88" authority="Ebert, 2003" authorityName="Ebert" authorityYear="2003" box="[921,1223,552,578]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="trachura">
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<emphasis id="B9384A41D7313815FCB54B61FBEEFD8B" box="[921,1056,552,577]" italics="true" pageId="6" pageNumber="7">B. trachura</emphasis>
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(
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<bibRefCitation id="EFDDEBA2D7313815FB034B61FB70FD88" author="Ebert" box="[1071,1214,552,578]" pageId="6" pageNumber="18" refString="Ebert, D. A. (2003) The sharks, rays and chimaeras of California. University California Press, 284 pp." type="book" year="2003">Ebert, 2003</bibRefCitation>
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)
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</taxonomicName>
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. However, examination of the
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<typeStatus id="54F728F1D7313815FE1F4B19FE6BFDA0" box="[307,421,592,618]" pageId="6" pageNumber="7" type="holotype">holotypes</typeStatus>
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of
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<taxonomicName id="4C4CEDD0D7313815FEE14B19FD49FDA3" box="[461,647,592,617]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="microtrachys">
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<emphasis id="B9384A41D7313815FEE14B19FD49FDA3" box="[461,647,592,617]" italics="true" pageId="6" pageNumber="7">B. microtrachys</emphasis>
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</taxonomicName>
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and
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<taxonomicName id="4C4CEDD0D7313815FDEE4B19FC87FDA3" box="[706,841,592,617]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="trachura">
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<emphasis id="B9384A41D7313815FDEE4B19FC87FDA3" box="[706,841,592,617]" italics="true" pageId="6" pageNumber="7">B. trachura</emphasis>
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</taxonomicName>
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by the senior author, plus additional material confirm that these species are distinct. To further separate these two species their egg cases can be used to distinguish them from each other. The egg case of
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<taxonomicName id="4C4CEDD0D7313815FDC04BE9FC6BFD73" box="[748,933,672,697]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="microtrachys">
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<emphasis id="B9384A41D7313815FDC04BE9FC6BFD73" box="[748,933,672,697]" italics="true" pageId="6" pageNumber="7">B. microtrachys</emphasis>
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</taxonomicName>
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differs from that of
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<taxonomicName id="4C4CEDD0D7313815FBBA4BE9FAD1FD73" box="[1174,1311,672,697]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="trachura">
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<emphasis id="B9384A41D7313815FBBA4BE9FAD1FD73" box="[1174,1311,672,697]" italics="true" pageId="6" pageNumber="7">B. trachura</emphasis>
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</taxonomicName>
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in that the former has very narrow lateral keels and a coarsely striated surface texture that is rough to the touch, while the latter has very broad lateral keels and is smooth to the touch.
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</paragraph>
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<paragraph id="8BF39653D7313815FFEA4A51FC4AFC48" blockId="6.[151,1437,152,978]" pageId="6" pageNumber="7">
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<taxonomicName id="4C4CEDD0D7313815FFEA4A51FE11FCFB" box="[198,479,792,817]" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" kingdom="Animalia" order="Rajiformes" pageId="6" pageNumber="7" phylum="Chordata" rank="species" species="microtrachys">
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<emphasis id="B9384A41D7313815FFEA4A51FE11FCFB" box="[198,479,792,817]" italics="true" pageId="6" pageNumber="7">Bathyraja microtrachys</emphasis>
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</taxonomicName>
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is one of the deepest occurring skate species, known to occur down to at least
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<quantity id="4CB43BB6D7313815FFBB4A09FF37FC90" box="[151,249,832,858]" metricMagnitude="3" metricUnit="m" metricValue="3.1" pageId="6" pageNumber="7" unit="m" value="3100.0">3,100 m</quantity>
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(unpublished data). The shallowest record of this species is the
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<typeStatus id="54F728F1D7313815FCD64A09FBAEFC90" box="[1018,1120,832,858]" pageId="6" pageNumber="7" type="holotype">holotype</typeStatus>
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||
known from
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<quantity id="4CB43BB6D7313815FA294A09FAA4FC90" box="[1285,1386,832,858]" metricMagnitude="3" metricUnit="m" metricValue="1.9949999999999999" pageId="6" pageNumber="7" unit="m" value="1995.0">1,995 m</quantity>
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. All other records of it have come from depths greater than
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<quantity id="4CB43BB6D7313815FC304A21FC4EFC48" box="[796,896,872,898]" metricMagnitude="3" metricUnit="m" metricValue="2.0" pageId="6" pageNumber="7" unit="m" value="2000.0">2,000 m</quantity>
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.
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</paragraph>
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</subSubSection>
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||
<subSubSection id="C356C5D8D7313815FFEA4AC6FE84FC18" pageId="6" pageNumber="7" type="materials_examined">
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<paragraph id="8BF39653D7313815FFEA4AC6FE84FC18" blockId="6.[151,1437,152,978]" pageId="6" pageNumber="7">
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||
<emphasis id="B9384A41D7313815FFEA4AC6FE7DFC63" bold="true" box="[198,435,911,937]" pageId="6" pageNumber="7">Material examined</emphasis>
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:
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<collectionCode id="ED5D0E96D7313815FEEE4AD9FE3FFC60" LSID="urn:lsid:biocol.org:col:14844" box="[450,497,912,938]" httpUri="http://biocol.org/urn:lsid:biocol.org:col:14844" name="Scripps Institution of Oceanography" pageId="6" pageNumber="7">SIO</collectionCode>
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||
8780,
|
||
<quantity id="4CB43BB6D7313815FD6E4AD9FD6FFC60" box="[578,673,912,938]" metricMagnitude="-1" metricUnit="m" metricValue="6.279999999999999" pageId="6" pageNumber="7" unit="cm" value="62.8">62.8 cm</quantity>
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||
TL, off Waldport, Oregon (
|
||
<geoCoordinate id="EE78F094D7313815FCCA4AD9FBA8FC60" box="[998,1126,912,938]" direction="north" orientation="latitude" pageId="6" pageNumber="7" precision="5" value="44.413">44.4130 N</geoCoordinate>
|
||
,
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||
<geoCoordinate id="EE78F094D7313815FB564AD9FADEFC60" box="[1146,1296,912,938]" direction="west" orientation="longitude" pageId="6" pageNumber="7" precision="5" value="-125.341">125.3410 W</geoCoordinate>
|
||
),
|
||
<quantity id="4CB43BB6D7313815FA0A4AD9FA4CFC60" box="[1318,1410,912,938]" metricMagnitude="3" metricUnit="m" metricValue="2.85" pageId="6" pageNumber="7" unit="m" value="2850.0">2850 m</quantity>
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||
,
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<date id="FFF2B093D7313815FAA14AD9FE88FC18" pageId="6" pageNumber="7" value="1987-02-06">6 February 1987</date>
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.
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</paragraph>
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</subSubSection>
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||
</treatment>
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||
</document> |