132 lines
16 KiB
XML
132 lines
16 KiB
XML
<document id="65AF02C033FB7F73A29E60A86C0E760D" ENCODING="UTF-8" ID-CLB-Dataset="52738" ID-GBIF-Dataset="c01cf2cf-dea2-4adc-8e46-695b9533cd1b" ModsDocID="z01393p001" checkinTime="1247406781749" checkinUser="thomas" docAuthor="David A. Ebert & Chante D. Davis" docDate="2007" docId="E2CD76C69FC9B66112D91121571BE034" 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="Rajidae" docType="treatment" docVersion="14" lastPageNumber="17" masterDocId="17349213E3557E9403747553351F425E" masterDocTitle="Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific." masterLastPageNumber="18" masterPageNumber="1" pageNumber="16" updateTime="1732659120043" updateUser="ExternalLinkService">
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<mods:title id="2092801BD4EEFE934FA635707DAF1E1E">Descriptions of skate egg cases (Chondrichthyes: Rajiformes: Rajoidei) from the eastern North Pacific.</mods:title>
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<mods:namePart id="3D778D3F848CD08FB3B3A509076788B4">David A. Ebert</mods:namePart>
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<mods:namePart id="0644B92A2EA7A79519282E8E516ACE14">Chante D. Davis</mods:namePart>
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<mods:typeOfResource id="66CD1A00AD3158F398D04477BFD09C02">text</mods:typeOfResource>
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<mods:title id="41D5A4516C4C62051FE44DDFA95EA810">Zootaxa</mods:title>
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<mods:part id="B9F9889351FCAB7174E6123B99BB7ABC">
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<mods:date id="7605CB27E5B78C7D36C9F6D08A296677">2007</mods:date>
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<mods:detail id="C1CA9B61735C26AC61654495A4B04DB4" type="volume">
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<mods:number id="1F9ADD0F25E0F590F2019DEDC3E9A3CD">1393</mods:number>
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<mods:url id="23CBE5D380433AEA09A912225D0C211F">http://www.zoobank.org/urn:lsid:zoobank.org:pub:0C16005C-21BC-4252-823E-C83515FCFF28</mods:url>
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<mods:classification id="9E1EB80A24CE70ECCB48C07B408C33FD">journal article</mods:classification>
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<mods:identifier id="08F1E5A932180220D3CF0DD367B4B59D" type="Plazi-Custom">z01393p001</mods:identifier>
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<treatment id="E2CD76C69FC9B66112D91121571BE034" ID-DOI="http://doi.org/10.5281/zenodo.6250558" ID-GBIF-Taxon="100121861" ID-Zenodo-Dep="6250558" LSID="urn:lsid:plazi:treatment:E2CD76C69FC9B66112D91121571BE034" httpUri="http://treatment.plazi.org/id/E2CD76C69FC9B66112D91121571BE034" lastPageNumber="17" pageNumber="16" scope_order="Rajiformes" scope_parvPhylum="Chondrichthyes">
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<subSubSection id="D616FFD2315373A8317F0D5F1FEE95BA" type="nomenclature">
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<paragraph id="D0D812AE4CC64E08548DF7A25D43978A" pageNumber="16">
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[[ Familiy
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<taxonomicName id="5ED3E6AB40ED2ADF848F6D5C3D7412D6" ID-CoL="FJ6" ID-ENA="30475" class="Elasmobranchii" family="Rajidae" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="family">Rajidae</taxonomicName>
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]]
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</paragraph>
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</subSubSection>
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<subSubSection id="9BAFBB485380C7259E014FB468F05C6E" type="key">
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<paragraph id="7CB12DEADE6053FCCDF11F305700B8EC" pageNumber="16">Key to the Eastern North Pacific Skate Egg Cases</paragraph>
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</subSubSection>
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<subSubSection id="3385A0BC833183A3B62DDB15AF6AAFC0" type="discussion">
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<paragraph id="171D67CDB2470BEB4610B97C95E78E3E" pageNumber="16">
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The ENP skate egg cases can be broadly classified into two main groups: those with broad lateral keels (> 10% MAW) and those with narrow lateral keels (<10% MAW). Egg cases in the former group (with broad lateral keels) generally have a surface texture that is finely striated and smooth to the touch. Those in the latter group (with narrow lateral keels) tend to have an egg case surface that is coarse in texture, often with prickles, and is rough to the touch. The only exception in this group is the egg case of
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<taxonomicName id="BF9FB16001DFE31794DD4D1BFC6CFF9B" class="Elasmobranchii" family="Rajidae" genus="Raja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="species" species="stellulata">R. stellulata</taxonomicName>
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that differs in having a finely striated surface beneath a thick fibrous covering.
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</paragraph>
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<paragraph id="42715E6812B7BC364AACEDBF5946DEDE" pageNumber="16">
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The key below includes all of the known valid skate species, plus two unidentified species, known to occur from the eastern Gulf of Alaska (ca 59° N, 138° W) southwards to the California Mexico border (ca 32° N 117° W). The validity of two species,
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<taxonomicName id="BB4C4044FEF287EB64F0787F5E08A7C3" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="species" species="obtusa">B. obtusa (Gill & Townsend, 1897)</taxonomicName>
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and
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<taxonomicName id="8F7070A99055FEB06391BC9F8C562B9A" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="species" species="rosispina">B. rosispina (Gill & Townsend, 1897)</taxonomicName>
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is questionable and the occurrence of the Alaska Skate,
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<taxonomicName id="17E0B8BCBAD279862B922A28C5796F0C" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="species" species="parmifera">B. parmifera (Bean, 1881)</taxonomicName>
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, in the eastern Gulf of Alaska has not been confirmed from this region. The egg cases of
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<taxonomicName id="9FBD3C69186F9E202C56973631CDD5E6" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="species" species="parmifera">B. parmifera</taxonomicName>
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, if found to occur in this area, are quite distinct. A description and illustration of the egg case of
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<taxonomicName id="E3AEDEE7637CA379947130F61D0301C4" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="species" species="parmifera">B. parmifera</taxonomicName>
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can be found in Ebert (2005).
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</paragraph>
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</subSubSection>
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<subSubSection id="7F5A15722C1C33E8A313ED5BA43308C5" type="key">
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<paragraph id="F6011D3B462331A462FD128752C9E91F" pageNumber="16">1a. Lateral keel width broad,> 10% of maximum egg case width...................................................................2</paragraph>
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<paragraph id="431CC98AAC4EE2B55C1BA8E90B3E5EB6" pageNumber="16">1b. Lateral keel width narrow, <10% of maximum egg case width.................................................................8</paragraph>
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<paragraph id="20195F11D5C44967089EED08D8AB7F9E" pageNumber="16">2a. Egg case very large,> 180 mm....................................................................................................................3</paragraph>
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<paragraph id="6C29317CBAF4AE231ABA160E862BC498" pageNumber="16">2b. Egg case usually smaller, <100 mm...........................................................................................................4</paragraph>
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<paragraph id="6320F82B06C29FC6DFF005FA191A627C" pageNumber="16">
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3a. Dorsal surface distinct with two convex ridges; horns <50% ECL; keel width very broad> 30% of MAW ..............................................................................................................................................
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<taxonomicName id="90700F26310DEF684EECB8928B19199B" LSID-ZBK="urn:lsid:zoobank.org:act:16567377-D5D8-4299-8D76-A000D6BAF121" class="Elasmobranchii" family="Rajidae" genus="Raja" higherTaxonomySource="CoL" kingdom="Animalia" lsidName-ZBK="Raja binoculata Girard 1855:196" order="Rajiformes" pageNumber="16" phylum="Chordata" rank="species" species="binoculata">Raja binoculata</taxonomicName>
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</paragraph>
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<paragraph id="AB2A19417F816C968CFB85FD60F8E016" pageNumber="16">
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3b. Dorsal surface without convex ridges; horns> 50% ECL; keel width broad about 15 % of MAW............. ........................................................................................................
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<taxonomicName id="C824B87C29C66701F8148E1FFB630C25" family="Tripterygiidae" genus="Unidentified" higherTaxonomySource="CoL" kingdom="Animalia" order="Perciformes" pageNumber="16" phylum="Chordata" rank="species" species="deepsea skate species "a"">Unidentified deepsea skate species “A”</taxonomicName>
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</paragraph>
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<paragraph id="8F28518A1DFD3AA50270E19BBE70E356" pageNumber="16">4a. Attachment fibers absent.............................................................................................................................5</paragraph>
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<paragraph id="60380F9822946B5B6CBE3D916CF9B3BE" pageNumber="17">4b. Attachment fibers present ............................................................................................................................ 6</paragraph>
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<paragraph id="95E99D44526914E7ABE16F1154CEDC1D" pageNumber="17">
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5a. Lateral keel width very broad, 17-25% of maximum egg case width; posterior horns about one-half egg case length ...............................................................................................................................
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<taxonomicName id="51D347C2304CB4798750B33A28BA67FA" class="Elasmobranchii" family="Rajidae" genus="Raja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="inornata">Raja inornata</taxonomicName>
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</paragraph>
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<paragraph id="800F8142CEC5909D3CFBA919A55B24AC" pageNumber="17">
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5b. Lateral keel width broad, 12-14% of maximum egg case width; posterior horns about equal to egg case length ..............................................................................................
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<taxonomicName id="FED1F77BC93E44A4B7CCAA305DCF5462" family="Tripterygiidae" genus="Unidentified" higherTaxonomySource="CoL" kingdom="Animalia" order="Perciformes" pageNumber="17" phylum="Chordata" rank="species" species="deepsea skate species "b"">Unidentified deepsea skate species “B”</taxonomicName>
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</paragraph>
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<paragraph id="170DB3740B773480A5BF9EB74D376410" pageNumber="17">
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6a. Fibrous covering absent ..................................................................................................
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<taxonomicName id="B338F782A450EE127A84A2940A064960" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="trachura">Bathyraja trachura</taxonomicName>
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</paragraph>
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<paragraph id="011CD07120E9BCEDABC00FFEB8326D89" pageNumber="17">6b. Fibrous covering present .............................................................................................................................. 7</paragraph>
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<paragraph id="6BB68EE72D16F58EB3D8C4DE17294A26" pageNumber="17">
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7a. Fibrous covering thick, woven-like ..............................................................................................
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<taxonomicName id="1A399DFE7623BD0AA858B7DD48A81CF7" class="Elasmobranchii" family="Rajidae" genus="Raja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="rhina">Raja rhina</taxonomicName>
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</paragraph>
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<paragraph id="61166C0C0CEF522870EC32272D5A579B" pageNumber="17">
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7b. Fibrous covering thin ......................................................................................................
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<taxonomicName id="D21F5AA0C45F1CF7EBE742E87458B041" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="kincaidii">Bathyraja kincaidii</taxonomicName>
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</paragraph>
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<paragraph id="D8BFEAB5491B09D78D664172BA6DF844" pageNumber="17">8a. Attachment fibers present ............................................................................................................................ 9</paragraph>
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<paragraph id="0F3F9A1CEFA9F4F146067324563F1DC4" pageNumber="17">
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8b. Attachment fibers absent ..........................................................................................
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<taxonomicName id="BA2A271075D72B29BE2729F7AE40FD2C" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="spinossisima">Bathyraja spinossisima</taxonomicName>
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</paragraph>
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<paragraph id="16BA2F0A3478458132CAF0CD3576E7B5" pageNumber="17">
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9a. Egg case with fibrous covering ...............................................................................................
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<taxonomicName id="695F5DBE7E79E3ED81039A6B6C1803D2" class="Elasmobranchii" family="Rajidae" genus="Raja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="stellulata">Raja stellulata</taxonomicName>
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</paragraph>
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<paragraph id="F95CA1572A460CA42CF748268104EC95" pageNumber="17">9b. Egg case without fibrous covering .......................................................................................... ................... 10</paragraph>
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<paragraph id="666F18DE828734D9717BBD4D70FB350E" pageNumber="17">10a. Egg case very large,> 100 mm ................................................................................................................ 11</paragraph>
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<paragraph id="0597B1D81B2C37F4A53C943DC0C0B491" pageNumber="17">
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10b. Egg case smaller, <100 mm ..................................................................................
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<taxonomicName id="31EAAA1847D1C236827D2A2E2F04C0FF" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="mircotrachys">Bathyraja mircotrachys</taxonomicName>
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</paragraph>
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<paragraph id="BE7C6AC93078F3D51E6E56B6FB26BBF5" pageNumber="17">
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11a. Surface coarse, striated, with long anteriorly directed prickles giving it a velvety texture, and without a distinct groove demarcating lateral keel and egg case .....................................................
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<taxonomicName id="F65E71A5C18E418B9D1443FB9DC797F6" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="aleutica">Bathyraja aleutica</taxonomicName>
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</paragraph>
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<paragraph id="D7B23D62F44FD79CEEC1FC9A10343A8C" pageNumber="17">
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11b. Surface very coarse, without anteriorly directed prickles, with a distinct groove demarcating lateral keel and egg case .................................................................................................................
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<taxonomicName id="76CE72592C730447242A8448FFA2E059" class="Elasmobranchii" family="Arhynchobatidae" genus="Bathyraja" higherTaxonomySource="CoL" kingdom="Animalia" order="Rajiformes" pageNumber="17" phylum="Chordata" rank="species" species="abyssicola">Bathyraja abyssicola</taxonomicName>
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |