136 lines
12 KiB
XML
136 lines
12 KiB
XML
<document id="AB3BB971BB457CFC93D606C6288A2D5E" ENCODING="UTF-8" ID-GBIF-Dataset="c01cf2cf-dea2-4adc-8e46-695b9533cd1b" ModsDocID="z01393p001" checkinTime="1247406781749" checkinUser="thomas" docAuthor="David A. Ebert & Chante D. Davis" docDate="2007" docId="F863C534903EF126CCC2A83323C1ECD8" docLanguage="en" docName="2007_Ebert_Davis_gg1.xml" docOrigin="Zootaxa 1393" docSource="http://www.zoobank.org/urn:lsid:zoobank.org:pub:0C16005C-21BC-4252-823E-C83515FCFF28" docTitle="Bathyraja trachura" docType="treatment" docVersion="11" lastPageNumber="10" masterDocId="17349213E3557E9403747553351F425E" masterDocTitle="Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific." masterLastPageNumber="18" masterPageNumber="1" pageNumber="9" updateTime="1701314543430" updateUser="plazi">
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<mods:mods id="1FFD626B356CA436EB04099FB8D64E8C" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="DB21E18E2C84FA05DB4BA12ED07E2BB0">
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<mods:title id="379C215CC0CD8A4C28B5BEF124456CA0">Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific.</mods:title>
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</mods:titleInfo>
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<mods:name id="2A812AC004298ADC662F4244B682C498" type="personal">
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<mods:roleTerm id="988AF0F5445E960FBC1F1B20AE2B7420">Author</mods:roleTerm>
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<mods:namePart id="D29B7BAF3F6211643C63B03F1D7BE628">David A. Ebert</mods:namePart>
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</mods:name>
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<mods:name id="ADCCD65D9571CC1B419B7DF01A7A47AC" type="personal">
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<mods:roleTerm id="7EFBCAA44A20122FF3D8C3FD30E18011">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="D280A7E06AA065781BF8ADC4DA6FCE5F">Chante D. Davis</mods:namePart>
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</mods:name>
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<mods:typeOfResource id="354783544F05E345FE57042735A13B50">text</mods:typeOfResource>
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<mods:titleInfo id="85231A6F1630648623419ED3D28C32DB">
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<mods:title id="64D5ABFBA952A2F827417F3A83A15E92">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="BCA1C841CFDDAA112F84E44FE935DB70">
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<mods:date id="5708B8E7FD50F1EB372F2CEFC828EFFC">2007</mods:date>
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<mods:detail id="524AED5C814EE909F3B45AAB8176738C" type="volume">
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<mods:number id="BE679E4D5917807B93011D8CCB706E75">1393</mods:number>
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</mods:detail>
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<mods:extent id="1D7BE1D7CACD93FD7AB56802B567CD6A" unit="page">
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<mods:start id="9DCA58159C57C9BDA4E16110E19DA345">1</mods:start>
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<mods:end id="A1473EB16DD19EA17724663ABBAFE1A1">18</mods:end>
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<mods:location id="2A7409A9FDDB5517F945D1C153C44623">
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<mods:url id="12DE9670E44265E120866538713D7748">http://www.zoobank.org/urn:lsid:zoobank.org:pub:0C16005C-21BC-4252-823E-C83515FCFF28</mods:url>
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</mods:location>
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<mods:classification id="8397AE0F9DC2E35D7D598B7961B3F108">journal article</mods:classification>
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<mods:identifier id="0472D1F999EAF93FF938208603696EBE" type="Plazi-Custom">z01393p001</mods:identifier>
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<mods:identifier id="9ADF3EB55A5F53BB7AB710E68CA5F517" type="ZooBank">0C16005C-21BC-4252-823E-C83515FCFF28</mods:identifier>
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<treatment id="F863C534903EF126CCC2A83323C1ECD8" ID-DOI="http://doi.org/10.5281/zenodo.6250543" ID-GBIF-Taxon="100121851" ID-Zenodo-Dep="6250543" LSID="urn:lsid:plazi:treatment:F863C534903EF126CCC2A83323C1ECD8" httpUri="http://treatment.plazi.org/id/F863C534903EF126CCC2A83323C1ECD8" lastPageNumber="10" pageNumber="9">
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<subSubSection id="1D93666B251C358A8970EED1F5E22EB2" type="nomenclature">
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<paragraph id="C9D902E65DBD165EC282E3DAD6FBA3DB" pageNumber="9">
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<taxonomicName id="6EC79C86936287E3CDB8FE47A754FAD7" ID-CoL="KXW4" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="9" phylum="Chordata" rank="species" species="trachura">Bathyraja trachura (Gilbert, 1892)</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="C28D5DFFB2A0B1101C62BDD42FA3E056" type="description">
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<paragraph id="9D8B57654A847CF9E7E6698CC3B67832" pageNumber="9">
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Description: The egg cases of
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<taxonomicName id="A8FBC3F3EA0A94AA3DCFCA0729F45968" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="9" phylum="Chordata" rank="species" species="trachura">Bathyraja trachura</taxonomicName>
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(Figure 7) are small, 62 to 78 mm in length, with MAW about 77-97% of ECL. Egg case surfaces with prominent longitudinal striations and smooth to the touch. LKW very broad, striated, about 15-20% of MAW, and extending length of case including outer edge of horns; an inner keel is present along edge of both anterior and posterior horns. Attachment fibers present along lateral keels, originating about outer base of posterior horns. Anterior apron border broad and concave, anterior horns about one-half ECL, horns curved inwards toward median plane of egg case, tips curling towards ventral aspect of egg case, and flattening towards tips. Posterior apron nearly straight, broad, transverse, and up to 7 mm wider than posterior apron. Posterior horn length variable, 0.8 to 1.4 times ECL, horns curved inwards to median plane of egg case, and flattening towards tips. A distinct crossbar originating midway along posterior horns was present on six of nine egg case pairs. One pair had evidence of an incompletely formed crossbar and two had no evidence. This crossbar is unique among ENP skates. Color after preservation a dark brown becoming a light golden brown on keels.
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</paragraph>
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</subSubSection>
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<subSubSection id="4BB08E0B08E4C67678773464A4B2B1FE" type="discussion">
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<paragraph id="81E8065BF89E1FBA71457AE93A5B77E4" lastPageNumber="10" pageNumber="9">
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Remarks: Ebert (2005) described the egg case of this species, based on material from the eastern Bering Sea, and commented that the egg case described and figured by Cox (1963) as
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<taxonomicName id="8D3003499B103E17F9769869996DCBC2" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="9" phylum="Chordata" rank="species" species="trachura">B. trachura</taxonomicName>
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was not that species. The egg case figured by Cox (1963: Figure 5), and captioned as
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<taxonomicName id="A95EDD81DB1F9D1B668A2B4D354BF2BE" class="Elasmobranchii" family="Rajidae" genus="Raja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="9" phylum="Chordata" rank="species" species="stellulata">Raja stellulata</taxonomicName>
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, is actually that of
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<taxonomicName id="33A1FEC624E1E55F3F33155978E38C38" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="9" phylum="Chordata" rank="species" species="trachura">B. trachura</taxonomicName>
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.
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</paragraph>
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<paragraph id="F0A0F7EA5A03821E55E8D5292C21E871" pageNumber="10">
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The posterior horns on some
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<taxonomicName id="5EB35308FF930239DDFF6E596943A536" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="10" phylum="Chordata" rank="species" species="trachura">B. trachura</taxonomicName>
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egg cases, 75% in this study, have a unique crossbar that is not present on any of the other skate egg cases that we have examined from this region (Figure 7). In some instances the crossbar was broken or missing. Whether the crossbar remains intact, or for how long, once the egg case is deposited on the seafloor is unknown as we did not obtain any egg cases of this species in situ.
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</paragraph>
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</subSubSection>
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<subSubSection id="412B96E1A21109B54865F565BEF6F56B" type="materials_examined">
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<paragraph id="D1AD307FACDED8A7F4E514435C48389B" pageNumber="10">
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Material examined:
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<materialsCitation id="BE7CC20AD031F217E7E56DACCFF3BF1B" ID-GBIF-Occurrence="923904607" country="U S A" stateProvince="Oregon">
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<collectionCode id="24B273DB3A941117DA166399317A46BB" collectionName="USA, California, San Francisco, California Academy of Sciences">CAS</collectionCode>
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224340, 79.1 cm TL, off central
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<collectingRegion id="8B4F268AA4D4D0F38DC1511C96FC0317">Oregon</collectingRegion>
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(
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<geoCoordinate id="2CFE450E5F78E26700AFCD328DC4F6AD" direction="north" orientation="latitude" value="45.3862">45.3862 N</geoCoordinate>
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, -
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<geoCoordinate id="B4A921682E2EAA4989AA52315D879C11" direction="west" orientation="longitude" value="-125.5707">125.5707 W</geoCoordinate>
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) 924 m,
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<date id="6385F36C4A6961BB4FBB7E06FD529DC2" day="03" month="09" value="2004-09-03" year="2004">3 September 2004</date>
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</materialsCitation>
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;
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<materialsCitation id="0DC248BF82E0F7F0488728405DDC7C10" ID-GBIF-Occurrence="923904610" country="U S A" stateProvince="Oregon">
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<collectionCode id="DED8BF2778F11E69CED346D62A37A9FD" collectionName="MLML">MLML</collectionCode>
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BT 100804-1-6, 86.5 cm TL, off central
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<collectingRegion id="2F4D445ECA27A8DF60BE5D285F7FF49D">Oregon</collectingRegion>
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(
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<geoCoordinate id="1FEE2F88243EF0F2CC2D66C0563EAF04" direction="north" orientation="latitude" value="45.3862">45.3862 N</geoCoordinate>
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, -
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<geoCoordinate id="A80A80EB15D3E3946ABD895E22987F51" direction="west" orientation="longitude" value="-125.5771">125.5771 W</geoCoordinate>
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), 929 m,
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<date id="D9CB0E64D27FBBB7558395B813BE82DF" day="03" month="09" value="2004-09-03" year="2004">3 September 2004</date>
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</materialsCitation>
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;
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<materialsCitation id="51032B38FC8AB4FA44C3C5C425B1B264" ID-GBIF-Occurrence="923904608" country="U S A" stateProvince="California">
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<collectionCode id="C9002633CF86BD862B6B84DA9AB33BF2" collectionName="MLML">MLML</collectionCode>
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BT 110504-2-3, 66.3 cm TL, off northern
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<collectingRegion id="272A692FA71327A2A7195DC784933E48">California</collectingRegion>
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(
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<geoCoordinate id="26867D7479579C39A6DA2359B1ADB02B" direction="north" orientation="latitude" value="37.0453">37.0453 N</geoCoordinate>
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, -
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<geoCoordinate id="AB1AA58E776CFC82A47AC01602ECAC67" direction="west" orientation="longitude" value="-120.3272">120.3272 W</geoCoordinate>
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), 1101 m,
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<date id="AB11A864ABE022618CB9F85CE2258A58" day="12" month="10" value="2004-10-12" year="2004">12 October 2004</date>
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</materialsCitation>
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;
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<materialsCitation id="BA54E7D578FC054AA1FC5BEAF946D906" ID-GBIF-Occurrence="923904613" country="U S A" stateProvince="California">
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<collectionCode id="92DC2BBAE19F2ABC5DC29A5EF5892F40" collectionName="MLML">MLML</collectionCode>
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BT 031105-04, 789 mm TL, off northern
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<collectingRegion id="B70081F9A43D5FD43E5AC251DC8C503B">California</collectingRegion>
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(
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<geoCoordinate id="8256AC9D710C6022411849CBA0371AB1" direction="north" orientation="latitude" value="38.5142">38.5142 N</geoCoordinate>
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, -
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<geoCoordinate id="2E728C21D3FD90D864295A82AFEE0F6F" direction="west" orientation="longitude" value="-122.689">122.6890 W</geoCoordinate>
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), 320 m,
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<date id="EB45E28EBDDD94CEA7D56BF4D8A55355" day="17" month="02" value="2005-02-17" year="2005">17 February 2005</date>
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</materialsCitation>
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;
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<materialsCitation id="DF001F7C06E40A92055D34A611DBC501" ID-GBIF-Occurrence="923904614" country="U S A" stateProvince="California">
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<collectionCode id="81D2C0EDC6CE94809779F3FE7B853C0B" collectionName="MLML">MLML</collectionCode>
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BT 011205-19, 78.7 cm TL, off central
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<collectingRegion id="56ACA1914491EE5B5246A64ED574A4E3">California</collectingRegion>
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(
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<geoCoordinate id="120D0663A4B8BBF72FCF5616F08E27E7" direction="north" orientation="latitude" value="36.2502">36.2502 N</geoCoordinate>
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, -
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<geoCoordinate id="EF42CF8DA4CA6DDDB886FC3F8D538D44" direction="west" orientation="longitude" value="-122.0718">122.0718 W</geoCoordinate>
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), 366 m,
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<date id="C18C346A3E986FB48F515A7EAB4D903B" day="06" month="01" value="2005-01-06" year="2005">6 January 2005</date>
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</materialsCitation>
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.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |