238 lines
17 KiB
XML
238 lines
17 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.717.21885" ID-GBIF-Dataset="7140b994-d67e-44a7-a4e1-daa7216c6b46" ID-PMC="PMC5784208" ID-Pensoft-Pub="1313-2970-717-1" ID-PubMed="29391848" ID-ZBK="C19B43B1B3214CB1B1B2A246CEAC56BC" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1313-2970-717-1" ModsDocOrigin="ZooKeys 717" ModsDocTitle="Polyphyly of the traditional family Flabellinidae affects a major group of Nudibranchia: aeolidacean taxonomic reassessment with descriptions of several new families, genera, and species (Mollusca, Gastropoda)" checkinTime="1512083542653" checkinUser="pensoft" docAuthor="Korshunova, Tatiana, Martynov, Alexander, Bakken, Torkild, Evertsen, Jussi, Fletcher, Karin, Mudianta, I Wayan, Saito, Hiroshi, Lundin, Kennet, Michael Schroedl, & Picton, Bernard" docDate="2017" docId="3E7ED8159387C008D67531B77037471C" docLanguage="en" docName="ZooKeys 717: 1-139" docOrigin="ZooKeys 717" docSource="http://dx.doi.org/10.3897/zookeys.717.21885" docTitle="Ziminella abyssa Korshunova, Martynov, Bakken, Evertsen, Fletcher, Mudianta, Saito, Lundin, Schroedl & Picton, 2017, sp. n." docType="treatment" docUuid="B22A7B85-F09B-4604-BE8C-6D5B560ABBDD" docUuidSource="ZooBank" docVersion="6" lastPageNumber="18" masterDocId="FFED910FFFF5FFC82005844DFFF1FFA8" masterDocTitle="Polyphyly of the traditional family Flabellinidae affects a major group of Nudibranchia: aeolidacean taxonomic reassessment with descriptions of several new families, genera, and species (Mollusca, Gastropoda)" masterLastPageNumber="139" masterPageNumber="1" pageNumber="16" updateTime="1668165142384" updateUser="ExternalLinkService">
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<mods:mods xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo>
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<mods:title>Polyphyly of the traditional family Flabellinidae affects a major group of Nudibranchia: aeolidacean taxonomic reassessment with descriptions of several new families, genera, and species (Mollusca, Gastropoda)</mods:title>
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</mods:titleInfo>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Korshunova, Tatiana</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Martynov, Alexander</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Bakken, Torkild</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Evertsen, Jussi</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Fletcher, Karin</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Mudianta, I Wayan</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Saito, Hiroshi</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Lundin, Kennet</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Michael Schroedl,</mods:namePart>
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</mods:name>
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<mods:name type="personal">
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<mods:role>
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<mods:roleTerm>Author</mods:roleTerm>
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</mods:role>
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<mods:namePart>Picton, Bernard</mods:namePart>
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</mods:name>
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<mods:typeOfResource>text</mods:typeOfResource>
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<mods:relatedItem type="host">
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<mods:titleInfo>
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<mods:title>ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part>
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<mods:date>2017</mods:date>
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<mods:detail type="volume">
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<mods:number>717</mods:number>
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</mods:detail>
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<mods:extent unit="page">
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<mods:start>1</mods:start>
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<mods:end>139</mods:end>
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</mods:extent>
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</mods:part>
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</mods:relatedItem>
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<mods:location>
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<mods:url>http://dx.doi.org/10.3897/zookeys.717.21885</mods:url>
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</mods:location>
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<mods:classification>journal article</mods:classification>
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<mods:identifier type="DOI">http://dx.doi.org/10.3897/zookeys.717.21885</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-717-1</mods:identifier>
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<mods:identifier type="ZBK">C19B43B1B3214CB1B1B2A246CEAC56BC</mods:identifier>
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<mods:identifier type="ZooBank">C19B43B1B3214CB1B1B2A246CEAC56BC</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="137581568" LSID="urn:lsid:zoobank.org:act:B22A7B85-F09B-4604-BE8C-6D5B560ABBDD" httpUri="http://treatment.plazi.org/id/3E7ED8159387C008D67531B77037471C" lastPageId="17" lastPageNumber="18" pageId="15" pageNumber="16">
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<subSubSection pageId="15" pageNumber="16" type="nomenclature">
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<paragraph pageId="15" pageNumber="16">
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<taxonomicName LSID="http://zoobank.org/B22A7B85-F09B-4604-BE8C-6D5B560ABBDD" class="Gastropoda" family="Paracoryphellidae" genus="Ziminella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ziminella abyssa" order="Nudibranchia" pageId="15" pageNumber="16" phylum="Mollusca" rank="species" species="abyssa">Ziminella abyssa</taxonomicName>
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<taxonomicNameLabel pageId="15" pageNumber="16">sp. n.</taxonomicNameLabel>
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Fig. 12
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</paragraph>
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</subSubSection>
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<subSubSection pageId="16" pageNumber="17" type="type material">
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<paragraph pageId="16" pageNumber="17">
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<pageBreakToken pageId="16" pageNumber="17" start="start">Type</pageBreakToken>
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material.
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</paragraph>
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<paragraph pageId="16" pageNumber="17">
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Holotype, ZSM Mol-20100647, 19 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘">''</normalizedToken>
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Akademik Lavrentyev", sta. B5-10, 24.08.2010, The Sea of Japan, depth 2676 m. 8 paratypes, ZMMU Op-248, up to 20 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 6657, 15.06.1972, The Sea of Japan, depth 3560 m. 9 paratypes, ZMMU Op-249, up to 24 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta.7462, 29.05.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="41.33">41°19.8'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="131.25333">131°15.2'E</geoCoordinate>
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, depth 3290 m. 57 paratypes, ZMMU Op-250, up to 25 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7463, 29.05.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="40.75">40°45.0'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="131.26666">131°16.0'E</geoCoordinate>
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, depth 3300 m. 1 paratype, ZMMU Op-252, 9 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7476, 06.06.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="40.658333">40°39.5'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="132.54666">132°32.8'E</geoCoordinate>
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, depth 3425 m. 7 paratypes, ZMMU Op-253, up to 15 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7479, 07.06.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="39.15167">39°09.1'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="131.05333">131°03.2'E</geoCoordinate>
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,, depth 3120 m. 2 paratypes, ZMMU Op-255, up to 14 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7492, 12.06.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="38.363335">38°21.8'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="134.825">134°49.5'E</geoCoordinate>
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, depth 3020-3030 m. 2 paratypes, ZMMU Op-256, up to 19 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7494, 14.06.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="38.8">38°48.0'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="136.07666">136°04.6'E</geoCoordinate>
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, depth 2740 m. Two paratypes, ZMMU Op-257, 15 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7496, 01.07.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="9" value="40.61">40°36.60'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="1" value="139.00003">139°00.002'E</geoCoordinate>
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, depth 3340 m. 48 paratypes, ZMMU Op-258, up to 21 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7517, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="42.47">42°28.2'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="138.34833">138°20.9'E</geoCoordinate>
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, depth 3620 m. 6 paratypes, ZMMU Op-259, up to 18 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘Vityaz’’">''Vityaz''</normalizedToken>
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, sta. 7519, 02.06.1976, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="92" value="41.48">41°28.8'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="92" value="136.10167">136°06.1'E</geoCoordinate>
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, depth 3460 m. 11 paratypes, ZMMU Op-264, up to 12 mm long (fixed), R/V
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<normalizedToken originalValue="‘‘">''</normalizedToken>
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Akademik
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<normalizedToken originalValue="Lavrentyev’’">Lavrentyev''</normalizedToken>
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(SoJaBio), sta. A3-11, 14.06.2010, The Sea of Japan,
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="44.793896">44°47.6338'N</geoCoordinate>
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,
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<geoCoordinate direction="east" orientation="longitude" precision="1" value="137.25531">137°15.3182'E</geoCoordinate>
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, depth 1494-1525 m.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="16" pageNumber="17" type="type locality">
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<paragraph pageId="16" pageNumber="17">Type locality.</paragraph>
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<paragraph pageId="16" pageNumber="17">The Sea of Japan.</paragraph>
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</subSubSection>
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<subSubSection pageId="16" pageNumber="17" type="etymology">
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<paragraph pageId="16" pageNumber="17">Etymology.</paragraph>
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<paragraph pageId="16" pageNumber="17">From abyssum (= depth, Latin) in reference to abyssal habitat of the new species, one of the deepest among aeolidacean nudibranchs.</paragraph>
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</subSubSection>
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<subSubSection pageId="16" pageNumber="17" type="diagnosis">
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<paragraph pageId="16" pageNumber="17">Diagnosis.</paragraph>
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<paragraph pageId="16" pageNumber="17">Continuous notal edge, lateral branches of digestive gland (ceratal basis) dark violet, rachidian tooth with up to 30 (and more) fold-like or fork-shaped denticles clearly delineated from central cusp, lateral teeth with few denticles on teeth edge, receptaculum seminis not evident, penis elongate conical.</paragraph>
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</subSubSection>
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<subSubSection pageId="17" pageNumber="18" type="description">
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<paragraph pageId="17" pageNumber="18">
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<pageBreakToken pageId="17" pageNumber="18" start="start">Description</pageBreakToken>
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.
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</paragraph>
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<paragraph pageId="17" pageNumber="18">External morphology (Fig. 12A, B). Body wide. Foot and tail wide, anterior foot corners short. Rhinophores similar in size to oral tentacles, smooth to slightly wrinkled. Dorsal cerata elongate, thin, continuously attached to well-defined uninterrupted notal edge without forming clusters. Apices of cerata pointed. Notum narrow but distinct throughout both lateral sides of body. Digestive gland diverticulum fills significant volume of the cerata. Anal opening on right side below notal edge close to middle body part. Reproductive openings on right side. Tail long and pointed, extending only short distance beyond last cerata</paragraph>
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<paragraph pageId="17" pageNumber="18">Colour. Background colour translucent milky white. Digestive gland diverticula probably reddish. Rhinophores light orange at the bases and pale on most of the rest of the length. Lateral branches of digestive gland (that shine through lateral dorsum sides) characteristically dark violet (estimated from a field colour photograph).</paragraph>
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<paragraph pageId="17" pageNumber="18">Jaws (Fig. 12C, D). Jaws broad, yellowish in colour. Masticatory processes of jaws covered with several compound denticles.</paragraph>
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<paragraph pageId="17" pageNumber="18">
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Radula (Fig. 12
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<normalizedToken originalValue="E–H">E-H</normalizedToken>
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). Radula formula up to 40
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<normalizedToken originalValue="×">x</normalizedToken>
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1.1.1 (in adult specimen 20-24 mm in length). Rachidian tooth with strongly protracted non-compressed cusp of ca. 1/3 of the tooth length (Fig. 12E). Rachidian tooth bears up to 30 (and more) special, fold-like or fork-like lateral denticles, which are sometimes greatly disordered. Larger denticles typically intermingled with the smaller ones. Cusp is clearly delineated from the adjacent first lateral denticles. Lateral teeth (Fig. 12
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<normalizedToken originalValue="F–H">F-H</normalizedToken>
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) narrowly triangular with few small denticles on internal edge.
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</paragraph>
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<paragraph pageId="17" pageNumber="18">Reproductive system (Fig. 12J). Diaulic. Hermaphroditic duct leads to long, relatively narrow convoluted ampulla of several whorls. Vas deferens extremely long, without distinct prostate. Penial sheath elongated. Penis entire, conical. Oviduct connects through insemination duct into female gland complex. No distal or proximal receptaculum seminis detected.</paragraph>
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</subSubSection>
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<subSubSection pageId="17" pageNumber="18" type="ecology">
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<paragraph pageId="17" pageNumber="18">Ecology.</paragraph>
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<paragraph pageId="17" pageNumber="18">
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Deep sea basins at 1494-3620 m depth, soft bottom. This species is most common in the deepest parts of the Sea of Japan at about 3000 m. Upper bathymetric limit needs to be refined. Feeds on sea anemones of the family
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<taxonomicName family="Edwardsiidae" lsidName="" pageId="17" pageNumber="18" rank="family">Edwardsiidae</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="17" pageNumber="18" type="distribution">
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<paragraph pageId="17" pageNumber="18">Distribution.</paragraph>
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<paragraph pageId="17" pageNumber="18">Central deepest basins of the Sea of Japan.</paragraph>
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</subSubSection>
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<subSubSection pageId="17" pageNumber="18" type="remarks">
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<paragraph pageId="17" pageNumber="18">Remarks.</paragraph>
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<paragraph pageId="17" pageNumber="18">
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By presence of an entire copulative organ
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<taxonomicName lsidName="Z. abyssa" pageId="17" pageNumber="18" rank="species" species="abyssa">Z. abyssa</taxonomicName>
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sp. n. is similar to
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<taxonomicName lsidName="Z. japonica" pageId="17" pageNumber="18" rank="species" species="japonica">Z. japonica</taxonomicName>
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(Volodchenko, 1941), but clearly differs in the pattern of the rachidian radular teeth. While
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<taxonomicName lsidName="Z. japonica" pageId="17" pageNumber="18" rank="species" species="japonica">Z. japonica</taxonomicName>
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has regular lateral denticles of the rachidian teeth, all similar in size, no more 20 in number even in very large specimens (30 mm),
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<taxonomicName lsidName="Z. abyssa" pageId="17" pageNumber="18" rank="species" species="abyssa">Z. abyssa</taxonomicName>
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sp. n. has highly irregular lateral denticles of the rachidian teeth, different in size, fold- and fork-shape (Fig. 12F, G), sometimes even placed disorderly (Fig. 12H), up to at least 30 (and more) in number even in specimens which are much smaller than in the previous species with specimens reaching 20-24 mm in length. Remarkably, the irregularity of the rachidian teeth in
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<taxonomicName lsidName="Z. abyssa" pageId="17" pageNumber="18" rank="species" species="abyssa">Z. abyssa</taxonomicName>
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sp. n. persists even in very small juveniles (2 mm), in which larger denticles already intermingle with the smaller ones (Fig. 12I). The morphological differences between these two species agree with the considerable bathymetric differences:
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<taxonomicName lsidName="Z. japonica" pageId="17" pageNumber="18" rank="species" species="japonica">Z. japonica</taxonomicName>
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is a shelf and upper bathyal species (ca. 100-500 m), whereas
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<taxonomicName lsidName="Z. abyssa" pageId="17" pageNumber="18" rank="species" species="abyssa">Z. abyssa</taxonomicName>
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sp. n. inhabits predominantly the deepest (approximately 3000 m) basins of the Sea of Japan.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |