138 lines
14 KiB
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138 lines
14 KiB
XML
<document id="E48397FFAD83CDE9595307D98D779F58" ID-DOI="10.1080/00222930110039161" ID-ISSN="1464-5262" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.tables_requiresApprovalFor="existingObjects,plazi" IM.taxonomicNames_approvedBy="felipe" checkinTime="1630000957241" checkinUser="felipe" docAuthor="Yonow, Nathalie, Anderson, R. Charles & Buttress, Susan G." docDate="2002" docId="03B5F62B473DFFAFE3B8FDBBA24899F1" docLanguage="en" docName="JNatHist.36.7.831-882.pdf" docOrigin="Journal of Natural History 36 (7)" docSource="http://dx.doi.org/10.1080/00222930110039161" docStyle="DocumentStyle:443144A73DAE3E092C51A378E4CD0138.2:JNatHist.2003-2004.journal_article.1cover" docStyleId="443144A73DAE3E092C51A378E4CD0138" docStyleName="JNatHist.2003-2004.journal_article.1cover" docStyleVersion="2" docTitle="Scyllaea pelagica Linnaeus 1758" docType="treatment" docVersion="2" lastPageNumber="871" masterDocId="FF8C8E534714FF86E215FFD5A60E9F66" masterDocTitle="Opisthobranch molluscs from the Chagos Archipelago, Central Indian Ocean" masterLastPageNumber="882" masterPageNumber="831" pageNumber="871" updateTime="1699135258280" updateUser="plazi" zenodo-license-document="CLOSED">
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<mods:title id="F0BFC9C3F90512E216C492D27CD7C349">Opisthobranch molluscs from the Chagos Archipelago, Central Indian Ocean</mods:title>
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<mods:namePart id="140A9AEF2DE676A65E8103A5FBF342AD">Yonow, Nathalie</mods:namePart>
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<mods:namePart id="ABC603A9EA3D0E76E5A7BD185593157D">Anderson, R. Charles</mods:namePart>
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<mods:namePart id="1FADC9F8D26E64698011EF28D7DEFA11">Buttress, Susan G.</mods:namePart>
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<mods:typeOfResource id="E0AD9E16C9008DF96699015F208DEED5">text</mods:typeOfResource>
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<mods:title id="708217FE4319847F5B6AAC8E39CD77B7">Journal of Natural History</mods:title>
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<mods:part id="A0424CC86DF4668FB0A9A8E3CCBC78ED">
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<mods:date id="6EE45EA0E499663A448DD8A2A2B38083">2002</mods:date>
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<mods:number id="06DF03F805F2D971B096B0E0839E76A2">2002-05-31</mods:number>
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<mods:detail id="3F00D025EF7F6152A3C3E7FBA4AD5A03" type="volume">
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<mods:number id="6130F85AB961676D911F6F9AA5E14CB8">36</mods:number>
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<mods:number id="AEFE413E7B9ADA89721BDFB1BC57B8E1">7</mods:number>
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<mods:start id="A734D5FEE6758814D61A45AC1A97B5CB">831</mods:start>
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<mods:end id="0C01038A4E86F4840BD0279047F94414">882</mods:end>
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<mods:url id="C55674FB075AE71D7699903658D76778">http://dx.doi.org/10.1080/00222930110039161</mods:url>
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<mods:classification id="842247229C48046693EF8878A933A685">journal article</mods:classification>
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<mods:identifier id="700E209AAA2E859CC43BF398F63BB197" type="DOI">10.1080/00222930110039161</mods:identifier>
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<mods:identifier id="7941D3AA22A9C6F2A5F41CE584404D7C" type="ISSN">1464-5262</mods:identifier>
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<subSubSection id="C30614B6473DFFAFE3B8FDBBA4A59DC0" pageId="41" pageNumber="871" type="nomenclature">
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<paragraph id="8BA3473D473DFFAFE3B8FDBBA52A9DE0" blockId="41.[140,910,622,710]" box="[429,804,622,646]" pageId="41" pageNumber="871">
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<heading id="D0EBF051473DFFAFE3B8FDBBA52A9DE0" box="[429,804,622,646]" centered="true" fontSize="10" level="2" pageId="41" pageNumber="871" reason="3">
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<taxonomicName id="4C1C3CBE473DFFAFE3B8FDBBA52A9DE0" ID-CoL="4W58C" authority="Linnaeus, 1758" authorityName="Linnaeus" authorityYear="1758" box="[429,804,622,646]" class="Gastropoda" family="Scyllaeidae" genus="Scyllaea" kingdom="Animalia" order="Nudibranchia" pageId="41" pageNumber="871" phylum="Mollusca" rank="species" species="pelagica">
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<emphasis id="B9689B2F473DFFAFE3B8FDBBA4619DE0" bold="true" box="[429,623,622,646]" italics="true" pageId="41" pageNumber="871">Scyllaea pelagica</emphasis>
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Linnaeus, 1758
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</taxonomicName>
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</heading>
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</paragraph>
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<paragraph id="8BA3473D473DFFAFE032FD5BA4A59DC0" blockId="41.[140,910,622,710]" box="[551,683,654,679]" pageId="41" pageNumber="871">(®gure 18b)</paragraph>
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</subSubSection>
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<subSubSection id="C30614B6473DFFAFE299FD65A24899F1" pageId="41" pageNumber="871" type="description">
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<paragraph id="8BA3473D473DFFAFE299FD65A5809DA0" blockId="41.[140,910,622,710]" box="[140,910,688,710]" pageId="41" pageNumber="871">
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<taxonomicName id="4C1C3CBE473DFFAFE299FD65A7909DA0" authority="Linnaeus" authorityName="Linnaeus" authorityYear="1758" box="[140,414,688,710]" class="Gastropoda" family="Scyllaeidae" genus="Scyllaea" kingdom="Animalia" order="Nudibranchia" pageId="41" pageNumber="871" phylum="Mollusca" rank="species" species="pelagica">
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<emphasis id="B9689B2F473DFFAFE299FD65A7349DA0" box="[140,314,688,710]" italics="true" pageId="41" pageNumber="871">Scyllaea pelagica</emphasis>
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Linnaeus
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</taxonomicName>
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: Thompson and Brown, 1981: 441, ®gures 3, 4.
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</paragraph>
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<paragraph id="8BA3473D473DFFAFE2A6FD36A4859C5C" blockId="41.[140,1095,739,1687]" pageId="41" pageNumber="871">
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<emphasis id="B9689B2F473DFFAFE2A6FD36A7129D9D" box="[179,284,739,763]" italics="true" pageId="41" pageNumber="871">Material.</emphasis>
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Chag96/55:
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<specimenCount id="9D1A8CB4473DFFAFE3DBFD36A48B9D9D" box="[462,645,739,763]" pageId="41" pageNumber="871" type="generic">four specimens</specimenCount>
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approximately
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<quantity id="4CE4EAD8473DFFAFE140FD36A5919D9C" box="[853,927,739,763]" metricMagnitude="-2" metricUnit="m" metricValue="1.8" pageId="41" pageNumber="871" unit="mm" value="18.0">18 mm</quantity>
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; on ¯oating
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<taxonomicName id="4C1C3CBE473DFFAFE299FCD6A70C9C7D" authorityName="C. Agardh" authorityYear="1820" box="[140,258,771,795]" class="Phaeophyceae" family="Sargassaceae" genus="Sargassum" kingdom="Chromista" order="Fucales" pageId="41" pageNumber="871" phylum="Ochrophyta" rank="genus">
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<emphasis id="B9689B2F473DFFAFE299FCD6A70C9C7D" box="[140,258,771,795]" italics="true" pageId="41" pageNumber="871">Sargassum</emphasis>
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</taxonomicName>
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weed, inside Peros Banhos Atoll;
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<date id="FFA261FD473DFFAFE085FCD6A5549C7D" box="[656,858,771,795]" pageId="41" pageNumber="871" value="1996-02-22">22 February 1996</date>
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. Chag96/56:
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<quantity id="4CE4EAD8473DFFAFE1E0FCD6A24C9C7C" box="[1013,1090,771,795]" metricMagnitude="-2" metricUnit="m" metricValue="2.3" pageId="41" pageNumber="871" unit="mm" value="23.0">23 mm</quantity>
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; collection details as above. No photographs.
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</paragraph>
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<paragraph id="8BA3473D473DFFAFE2A6FC91A4DF9BDF" blockId="41.[140,1095,739,1687]" pageId="41" pageNumber="871">
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<emphasis id="B9689B2F473DFFAFE2A6FC91A7379C3D" box="[179,313,836,859]" italics="true" pageId="41" pageNumber="871">Description.</emphasis>
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The preserved specimens, although ¯attened, appear identical to the photograph in Wells and Bryce (1993: 173; ®gure 223): the body is translucent and the organs within are opaque white; the brown radula and jaws are visible. The orange pigment spots remain on the preserved material. The two pairs of cerata with the gills on the mesial surface are squared in shape, irregularly lobed on their distal edges, and the dorsal ¯ap posterior to the cerata is large and bears gills, ending bluntly at the short metapodium. In the smallest specimen (the only specimen without orange spots), the rows of teeth in the radula are clearly visible at 3 80 magni®cation. When removed, examination provided a formula of 17 (1 3)3 24±25.1.25 ±24 (®gure 18b). There are no colour notes or photographs, but preserved body shape is identical to those illustrated by
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<bibRefCitation id="EF8D3ACC473DFFAFE10EFB54A5A29BFF" author="Baba" box="[795,940,1153,1177]" firstAuthor="Baba" pageId="41" pageNumber="871" refId="ref25530" refString="BABA, K., 1949, Opisthobranchia of Sagami Bay (Tokyo: Iwanami Shoten), 194 pp." type="book" year="1949">Baba (1949)</bibRefCitation>
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, Marcus and Marcus (1963) and Thompson and Brown (1981).
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</paragraph>
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<paragraph id="8BA3473D473DFFAFE2A6FB14A4D19A5F" blockId="41.[140,1095,739,1687]" pageId="41" pageNumber="871">
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<emphasis id="B9689B2F473DFFAFE2A6FB14A4999BBF" box="[179,663,1217,1241]" italics="true" pageId="41" pageNumber="871">
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Geographic distribution.
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<taxonomicName id="4C1C3CBE473DFFAFE3CDFB14A4999BBF" authorityName="Linnaeus" authorityYear="1758" box="[472,663,1217,1241]" class="Gastropoda" family="Scyllaeidae" genus="Scyllaea" kingdom="Animalia" order="Nudibranchia" pageId="41" pageNumber="871" phylum="Mollusca" rank="species" species="pelagica">Scyllaea pelagica</taxonomicName>
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</emphasis>
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is considered semi-planktonic, associated with the ¯oating oceanic alga
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<taxonomicName id="4C1C3CBE473DFFAFE00DFB34A4839B9F" authorityName="C. Agardh" authorityYear="1820" box="[536,653,1249,1273]" class="Phaeophyceae" family="Sargassaceae" genus="Sargassum" kingdom="Chromista" order="Fucales" pageId="41" pageNumber="871" phylum="Ochrophyta" rank="genus">
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<emphasis id="B9689B2F473DFFAFE00DFB34A4839B9F" box="[536,653,1249,1273]" italics="true" pageId="41" pageNumber="871">Sargassum</emphasis>
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</taxonomicName>
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. It has been recorded under numerous names from all areas of the world, including
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<collectingCountry id="F30B07AD473DFFAFE08AFAD4A5189A7F" box="[671,790,1281,1305]" name="Antarctica" pageId="41" pageNumber="871">Antarctica</collectingCountry>
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, southern Britain and the western Atlantic (see Thompson and Brown, 1981).
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</paragraph>
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<paragraph id="8BA3473D473DFFAFE2A6FA94A24899F1" blockId="41.[140,1095,739,1687]" pageId="41" pageNumber="871">
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<emphasis id="B9689B2F473DFFAFE2A6FA94A7109A3F" box="[179,286,1345,1369]" italics="true" pageId="41" pageNumber="871">Remarks.</emphasis>
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Numerous species and varieties of
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<taxonomicName id="4C1C3CBE473DFFAFE0D9FA94A5269A3F" authorityName="Linnaeus" authorityYear="1758" box="[716,808,1345,1369]" class="Gastropoda" family="Scyllaeidae" genus="Scyllaea" kingdom="Animalia" order="Nudibranchia" pageId="41" pageNumber="871" phylum="Mollusca" rank="genus">
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<emphasis id="B9689B2F473DFFAFE0D9FA94A5269A3F" box="[716,808,1345,1369]" italics="true" pageId="41" pageNumber="871">Scyllaea</emphasis>
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</taxonomicName>
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have been described, all of which are found in
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<taxonomicName id="4C1C3CBE473DFFAFE382FAB4A4039A1F" authorityName="C. Agardh" authorityYear="1820" box="[407,525,1377,1401]" class="Phaeophyceae" family="Sargassaceae" genus="Sargassum" kingdom="Chromista" order="Fucales" pageId="41" pageNumber="871" phylum="Ochrophyta" rank="genus">
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<emphasis id="B9689B2F473DFFAFE382FAB4A4039A1F" box="[407,525,1377,1401]" italics="true" pageId="41" pageNumber="871">Sargassum</emphasis>
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</taxonomicName>
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and analogous ¯oating habitats. Odhner (1936) has synonymized the majority into ®ve species, distinguished by colour, shape and internal characteristics such as the radula, stomach plates and liver masses. Following
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<bibRefCitation id="EF8D3ACC473DFFAFE299FA15A7369ABE" author="Eliot's" box="[140,312,1472,1496]" firstAuthor="Eliot's" pageId="41" pageNumber="871" pagination="636" refId="ref26946" refString="ELIOT, C. N. E., 1906 b, On the nudibranchs of Southern India and Ceylon, with special reference to the drawings by Kelaart and the collections belonging to Alder and Hancock preserved in the Hancock Museum at Newcastle-upon-Tyne, Proceedings of the Zoological Society, London, 2, 636 ± 691, 999 ± 1008." type="journal article" year="1906" yearSuffix="b">Eliot’s (1906b)</bibRefCitation>
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example, Odhner’s (1936) primary distinctions between the species were in radula ribbon width, narrow (16±17 lateral teeth) or broad (201 lateral teeth). This specimen, with 24±25 laterals, clearly falls into the second group, which contains three species distinguished partly by colour and size.
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<taxonomicName id="4C1C3CBE473DFFAFE17DF9F5A225995E" authorityName="Linnaeus" authorityYear="1758" box="[872,1067,1568,1592]" class="Gastropoda" family="Scyllaeidae" genus="Scyllaea" kingdom="Animalia" order="Nudibranchia" pageId="41" pageNumber="871" phylum="Mollusca" rank="species" species="pelagica">
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<emphasis id="B9689B2F473DFFAFE17DF9F5A225995E" box="[872,1067,1568,1592]" italics="true" pageId="41" pageNumber="871">Scyllaea pelagica</emphasis>
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</taxonomicName>
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is the most common and the largest, characterized by blue patches or small spots and squared cerata. The other two species with a broad radula are
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<taxonomicName id="4C1C3CBE473DFFAFE176F9B5A76999F1" authority="Alder and Hancock, 1864" authorityName="Alder and Hancock" authorityYear="1864" class="Gastropoda" family="Scyllaeidae" genus="Scyllaea" kingdom="Animalia" order="Nudibranchia" pageId="41" pageNumber="871" phylum="Mollusca" rank="species" species="marmorata">
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<emphasis id="B9689B2F473DFFAFE176F9B5A5F0991E" box="[867,1022,1632,1656]" italics="true" pageId="41" pageNumber="871">S. marmorata</emphasis>
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Alder and Hancock, 1864
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</taxonomicName>
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and
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<taxonomicName id="4C1C3CBE473DFFAFE38AF9AAA52699F1" authority="Alder and Hancock, 1864" authorityName="Alder and Hancock" authorityYear="1864" box="[415,808,1663,1687]" class="Gastropoda" family="Scyllaeidae" genus="Scyllaea" kingdom="Animalia" order="Nudibranchia" pageId="41" pageNumber="871" phylum="Mollusca" rank="species" species="viridis">
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<emphasis id="B9689B2F473DFFAFE38AF9AAA40E99F1" box="[415,512,1663,1687]" italics="true" pageId="41" pageNumber="871">S. viridis</emphasis>
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Alder and Hancock, 1864
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</taxonomicName>
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. The former, redescribed
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |