309 lines
25 KiB
XML
309 lines
25 KiB
XML
<document ID-DOI="http://dx.doi.org/10.3897/zookeys.115.1163" ID-GBIF-Dataset="16898250-8f0c-44c7-aa0b-23e070214ec3" ID-PMC="PMC3187662" ID-Pensoft-Pub="1313-2970-115-1" ID-PubMed="21976997" ModsDocAuthor="" ModsDocDate="2011" ModsDocID="1313-2970-115-1" ModsDocOrigin="ZooKeys 115" ModsDocTitle="Description of two new species of Rissoella Gray, 1847 (Mollusca, Gastropoda, Heterobranchia) from Venezuela, with a key to the Caribbean species known for the genus" checkinTime="1451250215506" checkinUser="pensoft" docAuthor="Caballer, Manuel, Ortea, Jesus & Narciso, Samuel" docDate="2011" docId="69058C146C040F66B76796BC66AC1136" docLanguage="en" docName="ZooKeys 115: 1-18" docOrigin="ZooKeys 115" docSource="http://dx.doi.org/10.3897/zookeys.115.1163" docTitle="Rissoella morrocoyensis Caballer, Ortea & Narciso, 2011, sp. n." docType="treatment" docVersion="3" lastPageNumber="7" masterDocId="EF0BFFD9214D3D64FFDFFFFE0C5A174C" masterDocTitle="Description of two new species of Rissoella Gray, 1847 (Mollusca, Gastropoda, Heterobranchia) from Venezuela, with a key to the Caribbean species known for the genus" masterLastPageNumber="18" masterPageNumber="1" pageNumber="2" updateTime="1668151816075" 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>Description of two new species of Rissoella Gray, 1847 (Mollusca, Gastropoda, Heterobranchia) from Venezuela, with a key to the Caribbean species known for the genus</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>Caballer, Manuel</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>Ortea, Jesus</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>Narciso, Samuel</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>2011</mods:date>
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<mods:detail type="volume">
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<mods:number>115</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>18</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.115.1163</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.115.1163</mods:identifier>
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<mods:identifier type="Pensoft-Pub">1313-2970-115-1</mods:identifier>
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</mods:mods>
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<treatment ID-GBIF-Taxon="152030125" LSID="urn:lsid:plazi:treatment:69058C146C040F66B76796BC66AC1136" httpUri="http://treatment.plazi.org/id/69058C146C040F66B76796BC66AC1136" lastPageId="6" lastPageNumber="7" pageId="1" pageNumber="2">
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<subSubSection pageId="1" pageNumber="2" type="nomenclature">
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<paragraph pageId="1" pageNumber="2">
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<taxonomicName LSID="urn:lsid:zoobank.org:act:76349EA2-0BD1-49BE-B299-975357F50CA9" class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
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<taxonomicNameLabel pageId="1" pageNumber="2">sp. n.</taxonomicNameLabel>
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Figs 1
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<normalizedToken originalValue="–59–1013–">-59-1013-</normalizedToken>
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17Tabs 124
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</paragraph>
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</subSubSection>
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<subSubSection lastPageId="3" lastPageNumber="4" pageId="1" pageNumber="2" type="description">
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<paragraph pageId="1" pageNumber="2">Description.</paragraph>
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<paragraph pageId="1" pageNumber="2">Shell very small (Tab. 2), smooth, translucent and fragile (Fig. 13); protoconch about half a whorl after the nucleus (Fig. 14); teleoconch of two and a half whorls to two and three quarters, convex profile, well marked suture; aperture semicircular, columella almost straight; umbilicus small, very narrow and deep, partially closed by the expansion of the columellar edge, with a preumbilical cord (Figs 9-10, 15), average height of the last whorl, 85% of shell length; average height of the aperture, 60% of shell length (Tab. 2); shell length/width ratio = 1.32; spiral angle = 60°; umbilical angle = 21°-28°.</paragraph>
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<caption ID-Table-UUID="42AFAF37C547523056114975138A9ECC" httpUri="http://table.plazi.org/id/42AFAF37C547523056114975138A9ECC" pageId="1" pageNumber="2">
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<paragraph pageId="1" pageNumber="2">
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Table 1. Valid species of the genus
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="genus">Rissoella</taxonomicName>
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Gray, 1847 in the Caribbean.
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</paragraph>
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</caption>
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<paragraph pageId="1" pageNumber="2">
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<table pageId="1" pageNumber="2">
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella caribaea" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="caribaea">Rissoella caribaea</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella galba" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="galba">Rissoella galba</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella gandocaensis" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="gandocaensis">Rissoella gandocaensis</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella ameliae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="ameliae">Rissoella ameliae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella belkisae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="belkisae">Rissoella belkisae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella dianae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="dianae">Rissoella dianae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella zaidae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="zaidae">Rissoella zaidae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella florae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="florae">Rissoella florae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella elsae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="elsae">Rissoella elsae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella taniae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="taniae">Rissoella taniae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella aliciae" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="aliciae">Rissoella aliciae</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
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</td>
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</tr>
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<tr pageId="1" pageNumber="2">
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<td colspan="1" pageId="1" pageNumber="2" rowspan="1">
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella venezolanicola" order="Littorinimorpha" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="venezolanicola">Rissoella venezolanicola</taxonomicName>
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</td>
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</tr>
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</table>
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</paragraph>
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<paragraph pageId="1" pageNumber="2">
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Operculum semicircular, translucent amber, rather opaque in the center, 453
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long by 255
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<normalizedToken originalValue="µm">µm</normalizedToken>
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wide in a shell of 0.92 mm length; inner side with a triangular projection with spearhead-shaped apex.
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</paragraph>
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<paragraph lastPageId="2" lastPageNumber="3" pageId="1" pageNumber="2">
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Head dark brown to black; black eyes set in a circular area of translucent white colour; oral lobes wider and shorter than the cephalic tentacles; both translucent, dark brown or
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<pageBreakToken pageId="2" pageNumber="3" start="start">black</pageBreakToken>
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, completely or just at the base (Figs 1-2); foot slightly bilobed, with a white hyaline sole; dorsal part of the foot, white or with an irregular dark drawing (Fig. 3); flanks of the animal the same colour as the head (Fig. 4); mantle white, with several black blotches around the hypobranchial gland; hypobranchial gland translucent white, with white spots, irregular black blotches and a pale yellow band marking its boomerang-shaped contour with no transversal bands (Fig. 5); visceral mass in the first whorls, dark brown to black.
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</paragraph>
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<paragraph lastPageId="3" lastPageNumber="4" pageId="2" pageNumber="3">
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Odontophoral cartilages rectangular, with polygonal uncini of 10-16
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, regularly imbricated (Fig. 16); radular formula of a specimen 1.02 mm shell length,
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<pageBreakToken pageId="3" pageNumber="4" start="start">15</pageBreakToken>
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<normalizedToken originalValue="×">x</normalizedToken>
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1.1.R.1.1; rachidian tooth wide, with bilobed apex forming two smooth cusps (Fig. 17), slightly shorter than marginal tooth; lateral tooth thorn-shaped, 34.2
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, with the apex hooked and smooth, imbricated with the opposite tooth above the rachidian; marginal tooth triangular, 26.1
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<normalizedToken originalValue="µm">µm</normalizedToken>
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long, with sharp apex.
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</paragraph>
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<caption pageId="3" pageNumber="4">
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<paragraph pageId="3" pageNumber="4">
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Figures 1-8.
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
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sp. n. 1-5: on a leaf of
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<taxonomicName class="Liliopsida" family="Hydrocharitaceae" genus="Thalassia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Thalassia testudinum" order="Alismatales" pageId="3" pageNumber="4" phylum="Tracheophyta" rank="species" species="testudinum">Thalassia testudinum</taxonomicName>
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(1-2), ventral view (3), lateral view (4), dorsal view (5).
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella venezolanicola" order="Littorinimorpha" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="venezolanicola">Rissoella venezolanicola</taxonomicName>
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sp. n. 6-8: lateral view (6), ventral view (7), dorsal view (8).
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</paragraph>
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</caption>
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<caption pageId="3" pageNumber="4">
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<paragraph pageId="3" pageNumber="4">
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Figures 9-12.
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
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sp. n. 9-10: view of the aperture and the umbilicus (9) detail of the umbilicus (10).
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella venezolanicola" order="Littorinimorpha" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="venezolanicola">Rissoella venezolanicola</taxonomicName>
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sp. n. 11-12: view of the aperture and the umbilicus (11), detail of the umbilicus 12.
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</paragraph>
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</caption>
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<caption pageId="3" pageNumber="4">
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<paragraph pageId="3" pageNumber="4">
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Figures 13-17.
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<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
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sp. n.: shell (13), protoconch (14), detail of the umbilicus (15), odontophoral cartilages (16), radular teeth (17).
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4" type="types">
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<paragraph pageId="3" pageNumber="4">Types.</paragraph>
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<paragraph lastPageId="4" lastPageNumber="5" pageId="3" pageNumber="4">
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Holotype, 1.06 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.82 mm, collected alive (June 10, 2010), preserved dry and deposited in SOM-IVIC (IVICCMT005). Paratypes 1-2, 1.25 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.86
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<pageBreakToken pageId="4" pageNumber="5" start="start">mm</pageBreakToken>
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and 1 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.69 mm, preserved in etanol 96%, SOM-IVIC (IVICCMT006). Paratypes 3-4, 1.16 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.80 mm and 1.06 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.82 mm, preserved dry, SOM-IVIC (IVICCMT007). Paratypes 5-7, 0.90 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.68 mm; 0.86 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.78 mm and 1.10 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.80 mm, preserved dry, FUDENA (CFPM0001).
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="6" type="further material">
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<paragraph pageId="5" pageNumber="6">
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<pageBreakToken pageId="5" pageNumber="6" start="start">Further</pageBreakToken>
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material.
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</paragraph>
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<paragraph pageId="5" pageNumber="6">
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1.02 mm
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<normalizedToken originalValue="×">x</normalizedToken>
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0.86 mm, collected (March 24, 2010) in Boca Grande, PNM (
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="10.850475">10°51'01.71"N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="1" value="-68.23791">68°14'16.48"W</geoCoordinate>
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), used to obtain the radula, therefore the specimen was destroyed.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="6" type="type locality">
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<paragraph pageId="5" pageNumber="6">Type locality.</paragraph>
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<paragraph pageId="5" pageNumber="6">
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Boca Grande, National Park Morrocoy, Venezuela (
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<geoCoordinate direction="north" orientation="latitude" precision="1" value="10.858014">10°51'28.85"N</geoCoordinate>
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,
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<geoCoordinate direction="west" orientation="longitude" precision="1" value="-68.2214">68°13'17.04"W</geoCoordinate>
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), at the base of the leaves of
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<taxonomicName class="Liliopsida" family="Hydrocharitaceae" genus="Thalassia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Thalassia testudinum" order="Alismatales" pageId="5" pageNumber="6" phylum="Tracheophyta" rank="species" species="testudinum">Thalassia testudinum</taxonomicName>
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, 1 m depth.
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</paragraph>
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</subSubSection>
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<subSubSection pageId="5" pageNumber="6" type="etymology">
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<paragraph pageId="5" pageNumber="6">Etymology.</paragraph>
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<paragraph pageId="5" pageNumber="6">morrocoyensis, latinization of morrocoy, place name of National Park Morrocoy, Venezuela, where the type locality is located.</paragraph>
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</subSubSection>
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<subSubSection lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6" type="remarks">
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<paragraph pageId="5" pageNumber="6">Remarks.</paragraph>
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<paragraph pageId="5" pageNumber="6">
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According to the classification given by
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<bibRefCitation author="Ortea, J" journalOrPublisher="Avicennia" pageId="11" pageNumber="12" pagination="77 - 94" title="Una combinacion de ciencia, arte y naturaleza: especies nuevas del genero Rissoella J. E. Gray, 1847 (Gastropoda, Heterobranchia) descritas en homenaje a las artistas de la plastica cubana." volume="17" year="2004">Ortea and Espinosa (2004)</bibRefCitation>
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,
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
|
||
sp. n. would cluster within the Caribbean species group with a preumbilical cord, which include:
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella zaidae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="zaidae">Rissoella zaidae</taxonomicName>
|
||
Ortea & Espinosa, 2004 (Fig. 27),
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella florae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="florae">Rissoella florae</taxonomicName>
|
||
Ortea & Espinosa, 2004 (Fig. 28),
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella elsae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="elsae">Rissoella elsae</taxonomicName>
|
||
Ortea & Espinosa, 2004 (Fig. 29) and
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella taniae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="taniae">Rissoella taniae</taxonomicName>
|
||
Ortea & Espinosa, 2004 (Fig. 30).
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
|
||
sp. n. has a preumbilical cord thicker than these four species, all of which have their type locality on the shores of Cuba. Additionally, the body colouration of
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella florae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="florae">Rissoella florae</taxonomicName>
|
||
,
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella elsae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="elsae">Rissoella elsae</taxonomicName>
|
||
and
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella taniae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="taniae">Rissoella taniae</taxonomicName>
|
||
is very different as well as the shape and proportions of their shells, which are larger.
|
||
</paragraph>
|
||
<paragraph pageId="5" pageNumber="6">
|
||
The shell of
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella zaidae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="zaidae">Rissoella zaidae</taxonomicName>
|
||
is similar in size to that of
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
|
||
sp. n., but the animal has a different colour and the oral palps equal the cephalic tentacles, while in
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
|
||
sp. n., they are shorter. Additionally,
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella zaidae" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="zaidae">Rissoella zaidae</taxonomicName>
|
||
has transverse yellow bands in the hypobranchial gland.
|
||
</paragraph>
|
||
<paragraph lastPageId="6" lastPageNumber="7" pageId="5" pageNumber="6">
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella contrerasi" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="contrerasi">Rissoella contrerasi</taxonomicName>
|
||
<normalizedToken originalValue="Rolán">Rolan</normalizedToken>
|
||
& Hernandez, 2004, from Africa, has the design on the hypobranchial gland similar to
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="5" pageNumber="6" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
|
||
sp. n., but it distinguishes by the curved inner edge of the columella, by the oral lobes being longer than the cephalic tentacles,
|
||
<pageBreakToken pageId="6" pageNumber="7" start="start">and</pageBreakToken>
|
||
by
|
||
<normalizedToken originalValue="it’s">it's</normalizedToken>
|
||
different body colour (black), which is displayed even on the sole of the foot and on the hypobranchial gland. In addition, the whorls of the shell and the aperture are different and it has a wider umbilicus.
|
||
</paragraph>
|
||
<caption ID-Table-UUID="D9DC06CAD60E0681CF71753A09517532" httpUri="http://table.plazi.org/id/D9DC06CAD60E0681CF71753A09517532" pageId="6" pageNumber="7">
|
||
<paragraph pageId="6" pageNumber="7">
|
||
Table 2.
|
||
<taxonomicName class="Gastropoda" family="Rissoellidae" genus="Rissoella" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Rissoella morrocoyensis" order="Littorinimorpha" pageId="6" pageNumber="7" phylum="Mollusca" rank="species" species="morrocoyensis">Rissoella morrocoyensis</taxonomicName>
|
||
sp. n. Measurements of specimens. (%) means percentage compared to the total length of the shell.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph pageId="6" pageNumber="7">
|
||
<table pageId="6" pageNumber="7">
|
||
<tr pageId="6" pageNumber="7">
|
||
<th colspan="1" pageId="6" pageNumber="7" rowspan="1">Protoconch (whorls)</th>
|
||
<th colspan="1" pageId="6" pageNumber="7" rowspan="1">Last whorl(mm)</th>
|
||
<th colspan="1" pageId="6" pageNumber="7" rowspan="1">Aperture(mm)</th>
|
||
<th colspan="1" pageId="6" pageNumber="7" rowspan="1">Length /width</th>
|
||
</tr>
|
||
</table>
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |