200 lines
26 KiB
XML
200 lines
26 KiB
XML
<document id="28DF32EC6483C586BDC6DBB5911F5121" ID-CLB-Dataset="33310" ID-DOI="http://dx.doi.org/10.3897/zookeys.665.10476" ID-GBIF-Dataset="deca21d0-8058-4f45-9d40-379243fe86ea" ID-PMC="PMC5523164" ID-Pensoft-Pub="1313-2970-665-1" ID-PubMed="28769624" ID-ZooBank="9117BAF17E9B4E2599EC7C8C6A8F456E" ModsDocAuthor="" ModsDocDate="2017" ModsDocID="1313-2970-665-1" ModsDocOrigin="ZooKeys 665" ModsDocTitle="Chitons (Mollusca, Polyplacophora) from Alacranes Reef, Yucatan, Mexico" checkinTime="1491256510415" checkinUser="pensoft" docAuthor="Reyes-Gomez, Adriana, Ortigosa, Deneb & Simoes, Nuno" docDate="2017" docId="E4F73347FC64ED4DD015E0C7F0339E75" docLanguage="en" docName="ZooKeys 665: 1-36" docOrigin="ZooKeys 665" docSource="http://dx.doi.org/10.3897/zookeys.665.10476" docTitle="Calloplax janeirensis Gray 1828" docType="treatment" docVersion="6" lastPageNumber="1" masterDocId="CB0B5931FFA4FF90FFDBFFF5FFC0FFC9" masterDocTitle="Chitons (Mollusca, Polyplacophora) from Alacranes Reef, Yucatan, Mexico" masterLastPageNumber="36" masterPageNumber="1" pageNumber="1" updateTime="1701377323243" updateUser="ExternalLinkService">
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<mods:title id="BF384D45B5B706E6B68BA076313186DD">Chitons (Mollusca, Polyplacophora) from Alacranes Reef, Yucatan, Mexico</mods:title>
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<mods:namePart id="192DB1694E4DFBFE05E118F8272518C2">Reyes-Gomez, Adriana</mods:namePart>
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<mods:namePart id="A30BED646D64B25329D305686E9393B4">Ortigosa, Deneb</mods:namePart>
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<mods:namePart id="AEB97DF4BAC76385797B9038A34F94A9">Simoes, Nuno</mods:namePart>
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<mods:date id="6B34254A6EDA706AC4D6A3744EC15C77">2017</mods:date>
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<mods:number id="C19EBC7EB1F90D06D0EBF40AD36CABE6">665</mods:number>
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<mods:classification id="96B32233DA52291D4F27B7CB982C9146">journal article</mods:classification>
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<mods:identifier id="6296ED590520D620663C5475853725C8" type="DOI">http://dx.doi.org/10.3897/zookeys.665.10476</mods:identifier>
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<treatment id="E4F73347FC64ED4DD015E0C7F0339E75" ID-GBIF-Taxon="128123028" LSID="urn:lsid:plazi:treatment:E4F73347FC64ED4DD015E0C7F0339E75" httpUri="http://treatment.plazi.org/id/E4F73347FC64ED4DD015E0C7F0339E75" lastPageId="1" lastPageNumber="1" pageId="0" pageNumber="1">
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<subSubSection id="53D76B3F35825C2527EDA0E10D6762B4" pageId="0" pageNumber="1" type="nomenclature">
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<paragraph id="9A4C55238227CAD51E1A2B11C787C326" pageId="0" pageNumber="1">
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<taxonomicName id="8550F98C7E245CCB41927E377CD94D64" ID-CoL="8TN9D" authority="Gray, 1828" authorityName="Gray" authorityYear="1828" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax janeirensis" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="janeirensis">Calloplax janeirensis (Gray, 1828)</taxonomicName>
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Figures 2
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<normalizedToken id="C0FEF1AFFA62E14F8D44F4D66E126F33" originalValue="N–O">N-O</normalizedToken>
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, 5
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<normalizedToken id="52F85C90CFA36D18E25D5B908917BA0E" originalValue="A–H">A-H</normalizedToken>
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</paragraph>
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</subSubSection>
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<subSubSection id="EC1394796E6A9BA0431288768F67305F" pageId="0" pageNumber="1" type="materials_examined">
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<paragraph id="47B9570D0D8C2B6E9B80938D334CBD3B" pageId="0" pageNumber="1">Material examined.</paragraph>
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<paragraph id="76B6612BF01BA0EE027F300377F0BB82" pageId="0" pageNumber="1">Four specimens; 9-15.2 mm long, 4.9-7.1 mm wide. Isla Perez (CNMO4981, CNMO4990, CNMO4994).</paragraph>
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</subSubSection>
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<subSubSection id="E83A14B3751B37C81D10BAB52E3FBF94" pageId="0" pageNumber="1" type="description">
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<paragraph id="38CF13DB8EB37891B7551194D3C3F986" pageId="0" pageNumber="1">Description.</paragraph>
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<paragraph id="5C1DE6CABD6683068FD58B96858264D2" pageId="0" pageNumber="1">
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Medium-sized chitons with elongate body shape. Color yellow, creamy, or light brown (Figure 2
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<normalizedToken id="77B65FE6E469E779734EBC60691D2171" originalValue="N–O">N-O</normalizedToken>
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). Tegmentum strongly sculptured with large, raised coalesced pustules. Head valve (Figure 5A), semi-circular, with large lobulose pustules, arranged in 8-10 radiating, bifurcated rows, uplifted notch. Tail valve (Figure 5B), wider than long; mucro postmedian, not elevated and pointed; antemucronal area with 17-19 longitudinal, pustulose ribs, the pustules on the jugal area are less coalesced and arranged longitudinally; postmucronal area with 8-9 coarsely pustulose radial ribs. Intermediate valves (Figure 5C), semi-rectangular shaped, posterior margin almost straight; lateral areas heavily elevated with 2-3 coarsely pustulose bifurcate ribs; the rib adjacent to central area usually raised more than those near the posterior margin; central areas narrower than combined lateral areas, wider near its center; pleural areas with 7-8 longitudinal ribs, which can develop sub-riblets; 5-7 pustulose ribs in jugal areas, which fade toward the apex. White to slightly blue articulamentum; apophyses and insertion plates short and wide (Figure 5D); slit formula 7
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<normalizedToken id="8CFE1BDC4A24FDD9F445CC2705274F6E" originalValue="–9/1/8–">-9/1/8-</normalizedToken>
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10. Pustules bear large megalaesthetes and between them, the micraesthetes appear somewhat scattered (Figure 5E). Girdle colored in alternating irregular bands of green, cream and yellow; covered with small and medium strong ribbed scales, and hyaline long needles (Figure 5F), the scales are somewhat wider than longer, its apical end develop a flattened pit (Figure 5G), and between the scales occur single curve spicules, scattered with no apparent order. Radula (Figure 5H) with major lateral tooth tridentate, with broad and wide cusps; central tooth spatulate in shape, its distal end bending outwards and longer than minor lateral teeth.
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</paragraph>
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<caption id="F7EA7E158CCF9F6EB8840607A0DD7FAA" pageId="0" pageNumber="1">
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<paragraph id="C9649325FAE7281F868C283B9B70BAEB" pageId="0" pageNumber="1">
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Figure 5.
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<taxonomicName id="2DB1277E72C71C2149DB3EAADAFF13B9" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax janeirensis" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="janeirensis">Calloplax janeirensis</taxonomicName>
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(Gray, 1828). Scanning electron images of a specimen from Isla Perez (CNMO4981, 13.9 mm length). A dorsal view of head valve (I), SB = 1 mm B dorsal view of tail valve (VIII), SB = 1 mm C dorsal view of intermediate valve IV, SB = 1 mm D ventral view of intermediate valve IV, SB = 1 mm E pustule detail with aesthetes, SB = 10
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<normalizedToken id="33D8658AA1D10C50265339DCD7AEA0AC" originalValue="μm">μm</normalizedToken>
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F girdle scales and hyaline needles, SB = 100
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<normalizedToken id="9C65CE7A9DE196797B6214336ADBDA77" originalValue="μm">μm</normalizedToken>
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G detail of girdle spicules, SB = 50
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<normalizedToken id="6638C387B2D7EB529E865C5D1DF80225" originalValue="μm">μm</normalizedToken>
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H detail of radular teeth, SB = 100
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<normalizedToken id="F3F14A955B4829E48805BB1329FEA962" originalValue="μm">μm</normalizedToken>
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.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="A1465E9D61A544C4507E510F7DCD3698" pageId="0" pageNumber="1" type="habitat">
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<paragraph id="09881DCFB8175B6D1F05021D075A0E7F" pageId="0" pageNumber="1">Habitat.</paragraph>
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<paragraph id="5381F46AE1D72A076A216A8DD8A1AEB6" pageId="0" pageNumber="1">Found in intertidal, on rock buried in sand, associated with crustose coralline red algae.</paragraph>
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</subSubSection>
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<subSubSection id="D47DC541DDDA718431F08A959D24B18F" lastPageId="1" lastPageNumber="2" pageId="0" pageNumber="1" type="remarks">
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<paragraph id="CD036B210A0C2E1583ACE8304C4E92C7" pageId="0" pageNumber="1">Remarks.</paragraph>
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<paragraph id="8F88533A7E36D6F07359C952457E7A42" pageId="0" pageNumber="1">
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When Thiele (1909) described the genus
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<taxonomicName id="EB58BF692B69603B1E36AE88BD0D696B" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Calloplax</taxonomicName>
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based on only its type species,
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<taxonomicName id="83D1BFE0D7A577FF9CB796CE6F0A2EBA" class="Polyplacophora" family="Chitonidae" genus="Chiton" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chiton janeirensis" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="janeirensis">Chiton janeirensis</taxonomicName>
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Gray 1828, he emphasized differences of its tegmental nodulose ribs contrasted with those of the distinct pustules for selected members of
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<taxonomicName id="4936264707DC9E8A11A6742A5B225D34" class="Polyplacophora" family="Chaetopleuridae" genus="Chaetopleura" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chaetopleura" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Chaetopleura</taxonomicName>
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Shuttleworth, 1853, where Pilsbry (1892) had previously assigned this species.
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<bibRefCitation id="5A2C4C640B722EE251E149200367CC72" author="Smith, AG" journalOrPublisher="Veliger" pageId="13" pageNumber="14" pagination="82 - 97" title="Chiton fauna of the Galapagos Islands." volume="20" year="1977">Smith and Ferreira (1977)</bibRefCitation>
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,
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<bibRefCitation id="CDF75FCF8B03B045A16B522B2AC73D17" author="Ferreira, JA" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="11" pageNumber="12" pagination="56 - 64" title="The genus Calloplax Thiele, 1909 (Mollusca: Polyplacophora) in the Americas." volume="77" year="1978 b">Ferreira (1978b)</bibRefCitation>
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and
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<bibRefCitation id="32AC4DD247F5F5BFE8C4E0A606718E52" author="Ferreira, AJ" journalOrPublisher="Veliger" pageId="11" pageNumber="12" pagination="321 - 324" title="A new species of Calloplax (Mollusca: Polyplacophora) in the eastern Pacific." volume="24" year="1982">Ferreira (1982)</bibRefCitation>
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expanded
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<normalizedToken id="E536BF272ECD1A0267D1767A6F200353" originalValue="Thiele’s">Thiele's</normalizedToken>
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genus to include three other species, with
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<bibRefCitation id="EF3CF81F943F9093239397C2CC939FE8" author="Ferreira, JA" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="11" pageNumber="12" pagination="56 - 64" title="The genus Calloplax Thiele, 1909 (Mollusca: Polyplacophora) in the Americas." volume="77" year="1978 b">Ferreira (1978b)</bibRefCitation>
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transferring it from
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<taxonomicName id="C754951A2CADEF5E222C51D068DD8A75" family="Chaetopleuridae" lsidName="" pageId="0" pageNumber="1" rank="family">Chaetopleuridae</taxonomicName>
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to
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<taxonomicName id="9A6BB6D69A839EFE7B1CC8D4AFAEEB19" family="Callistochitonidae" lsidName="" pageId="0" pageNumber="1" rank="family">Callistochitonidae</taxonomicName>
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, and then later (1982) transferring it back.
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<bibRefCitation id="6430AF567F7844AD424E16EDB8018922" author="Ferreira, JA" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="11" pageNumber="12" pagination="56 - 64" title="The genus Calloplax Thiele, 1909 (Mollusca: Polyplacophora) in the Americas." volume="77" year="1978 b">Ferreira (1978b)</bibRefCitation>
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designated and figured a lectotype from among the syntypes of
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<taxonomicName id="1DFCD3F92D160320BE5360C00ABA54F8" class="Polyplacophora" family="Chitonidae" genus="Chiton" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chiton janeirensis" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="janeirensis">Chiton janeirensis</taxonomicName>
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from the type locality of Rio de Janeiro, Brazil.
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<bibRefCitation id="33935D2533DE23E38956C4A90F587126" author="Lyons, WG" journalOrPublisher="The Nautilus" pageId="12" pageNumber="13" pagination="35 - 44" title="Chaetopleurastaphylophera (Polyplacophora: Chaetopleuridae), a new species from the Southeastern United States and Bahamas." volume="99" year="1985">Lyons (1985)</bibRefCitation>
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questioned the reassignment of family status for
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<taxonomicName id="D4D87B5119658E78D27A426FC42062CB" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax janeirensis" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="janeirensis">Calloplax janeirensis</taxonomicName>
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, emphasizing the morphological similarities between
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<taxonomicName id="5A30080DF18DFEF0B3FD4BB63D574D92" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Calloplax</taxonomicName>
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and
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<taxonomicName id="86B590CDA55F243FF12F4502064E6A9B" class="Polyplacophora" family="Chaetopleuridae" genus="Chaetopleura" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chaetopleura" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Chaetopleura</taxonomicName>
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genera, also noted by
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<bibRefCitation id="98DB6552B6186CE3E6E34D89269EFC1C" author="Ferreira, JA" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="11" pageNumber="12" pagination="56 - 64" title="The genus Calloplax Thiele, 1909 (Mollusca: Polyplacophora) in the Americas." volume="77" year="1978 b">Ferreira (1978b</bibRefCitation>
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;
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<bibRefCitation id="EF5F2996C3E7D1F8E85DF80BF7917BFE" author="Ferreira, AJ" journalOrPublisher="Veliger" pageId="11" pageNumber="12" pagination="321 - 324" title="A new species of Calloplax (Mollusca: Polyplacophora) in the eastern Pacific." volume="24" year="1982">1982</bibRefCitation>
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).
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<bibRefCitation id="BFAEC98B41CC17A543C7AA5BCF98E59F" author="Lyons, WG" journalOrPublisher="The Nautilus" pageId="12" pageNumber="13" pagination="35 - 44" title="Chaetopleurastaphylophera (Polyplacophora: Chaetopleuridae), a new species from the Southeastern United States and Bahamas." volume="99" year="1985">Lyons (1985)</bibRefCitation>
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acknowledged the uncertainty regarding both genera, and based on similar girdle elements and the continuity in the range of tegmental sculpturing in species assigned to
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<taxonomicName id="7720973ABB6B25B18B04E3B03040A167" class="Polyplacophora" family="Chaetopleuridae" genus="Chaetopleura" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chaetopleura" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Chaetopleura</taxonomicName>
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or
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<taxonomicName id="66E69E41225A77D173B93A29C4E11F29" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Calloplax</taxonomicName>
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, he suggested that
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<taxonomicName id="77E346C5E40FAEBDED1E6B2FCB8F45C1" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Calloplax</taxonomicName>
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should be considered a synonym of
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<taxonomicName id="0AFD0917A987597B1FE63FA607ABC5C4" class="Polyplacophora" family="Chaetopleuridae" genus="Chaetopleura" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chaetopleura" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Chaetopleura</taxonomicName>
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s.s. This was later followed by
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<bibRefCitation id="04A72AE360537CF0D6ECF8FC9D11235E" author="Bullock, RC" journalOrPublisher="Memoria" pageId="11" pageNumber="12" pagination="77 - 93" title="A report on a collection of chitons (Mollusca: Polyplacophora) dredged near Isla Coche, Nueva Esparta, Venezuela." volume="54" year="1994">Bullock et al. (1994)</bibRefCitation>
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and
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<bibRefCitation id="9A9AA8FA583F08BDE52E3EDFE4382A9C" pageId="0" pageNumber="1">Lyons and Moretzsohn (2009)</bibRefCitation>
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, but
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<bibRefCitation id="F9AB5551228F2A24B440C98A444812DB" author="Van Belle, RA" journalOrPublisher="Informations de la Societe Belge de Malacologie," pageId="13" pageNumber="14" pagination="1 - 178" title="The systematic classification of the chitons (Mollusca: Polyplacophora)." volume="11" year="1983">Van Belle (1983)</bibRefCitation>
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,
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<bibRefCitation id="EC458134F111376BF6E459E892E54C30" author="Kaas, P" journalOrPublisher="Brill / Backhuys, Leiden" pageId="12" pageNumber="13" title="Monograph of Living Chitons (Mollusca: Polyplacophora). Vol 5. Suborder Ischnochitonina: Ischnochitonidae: Ischnochitoninae (concluded); Callistoplacinae; Mopaliidae. Addition to vols. 1 - 4." year="1994">Kaas and Van Belle (1994</bibRefCitation>
|
||
;
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||
<bibRefCitation id="2D03E429FFCC5D83573F25FC7FB53E1F" author="Kaas, P" journalOrPublisher="Backhyus, publishers, Leiden" pageId="12" pageNumber="13" title="Catalogue of Living chitons (Mollusca: Polyplacophora), 2 nd revised edition." year="1998">1998</bibRefCitation>
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||
) and
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<bibRefCitation id="AB094387388E8FFD9439964C5F139889" author="Sirenko, B" journalOrPublisher="Venus" pageId="13" pageNumber="14" pagination="27 - 49" title="New outlook on the system of chitons (Mollusca: Polyplacophora)." volume="65" year="2006">Sirenko (2006)</bibRefCitation>
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recognized it as a separate genus and have followed
|
||
<bibRefCitation id="DEA76DF2270AA723F39E6FAD51CDF332" author="Ferreira, JA" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="11" pageNumber="12" pagination="56 - 64" title="The genus Calloplax Thiele, 1909 (Mollusca: Polyplacophora) in the Americas." volume="77" year="1978 b">Ferreira (1978b)</bibRefCitation>
|
||
in placing it in a subfamily or family, respectively, associated with
|
||
<taxonomicName id="C73B4BB866737D41C2074A7412E3ACFD" class="Polyplacophora" family="Callistoplacidae" genus="Callistochiton" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Callistochiton" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Callistochiton</taxonomicName>
|
||
, not
|
||
<taxonomicName id="F44D7F60FEB74AF46800B7ECD3AE5DA7" class="Polyplacophora" family="Chaetopleuridae" genus="Chaetopleura" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Chaetopleura" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Chaetopleura</taxonomicName>
|
||
, based on the presence of heavily sculptured ribs, and the insertion plate slits that generally correspond in number and position to the dorsal radial ribs, which, according to these authors is not a state of character of
|
||
<taxonomicName id="F219948C1DF6F47AB23EC446CABBDA63" lsidName="" pageId="0" pageNumber="1" rank="subfamily" subfamily="Chaetopleurinae">Chaetopleurinae</taxonomicName>
|
||
. Recognizing that its status remains controversial, here we have preferred to follow
|
||
<bibRefCitation id="E73B5163E6E77CA7A3D6CAFF0EF17CD4" author="Sirenko, B" journalOrPublisher="Venus" pageId="13" pageNumber="14" pagination="27 - 49" title="New outlook on the system of chitons (Mollusca: Polyplacophora)." volume="65" year="2006">Sirenko (2006)</bibRefCitation>
|
||
for the assignment of
|
||
<taxonomicName id="FC54A8E6A079DFF895924BAD5F1952C2" class="Polyplacophora" family="Callistoplacidae" genus="Calloplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Calloplax" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="genus">Calloplax</taxonomicName>
|
||
as a distinct genus within
|
||
<taxonomicName id="E7413AFD7C7329E24DF3ACF51937210F" family="Callistochitonidae" lsidName="" pageId="0" pageNumber="1" rank="family">Callistochitonidae</taxonomicName>
|
||
.
|
||
</paragraph>
|
||
<paragraph id="AD24F6723B20C3A60B6CC19852F99E52" lastPageId="1" lastPageNumber="2" pageId="0" pageNumber="1">
|
||
PNAA specimens (up to 15.2 mm), bear resemblance on sculpturing and number of ribs (I: 8 ribs; IV 2-3 ribs; VIII 9 ribs) to a 10.5 mm specimen of
|
||
<taxonomicName id="5E82990F88FB07BE7E2B2C52C3679B99" lsidName="C. janeirensis" pageId="1" pageNumber="2" rank="species" species="janeirensis">
|
||
<pageBreakToken id="CB0D1F0AFC85B2ECB97E0F5ADCF7BB0D" pageId="1" pageNumber="2" start="start">C</pageBreakToken>
|
||
. janeirensis
|
||
</taxonomicName>
|
||
described by
|
||
<bibRefCitation id="F448E5F51F782FDCB43526A95BCF934E" author="Lyons, WG" journalOrPublisher="The Nautilus" pageId="12" pageNumber="13" pagination="35 - 44" title="Chaetopleurastaphylophera (Polyplacophora: Chaetopleuridae), a new species from the Southeastern United States and Bahamas." volume="99" year="1985">Lyons (1985</bibRefCitation>
|
||
: figs 22-24) from Dry Tortugas, Florida Keys, for which he figured valves I (11 ribs), IV (2 ribs) and VIII (8 ribs). PNAA specimens show ribs that tend to merge and bifurcate, and the lateral areas seem to develop three pustulose ribs, which became two, after both ribs next to diagonal ridge merged into one. On the contrary, Florida Keys specimens show more rounded pustules, the ribs remain separate or well-defined, and the lateral areas display two separated ribs. The number of ribs on the pleural areas (8 ribs), antemucronal area (18 ribs) and postmucronal areas of tail valve (8 ribs), are similar in both species. Such differences between Florida Keys and PNAA can be explained by the
|
||
<normalizedToken id="12E83646274FA3E45CE69E64D978992E" originalValue="chiton’s">chiton's</normalizedToken>
|
||
size. We assume that
|
||
<bibRefCitation id="A94B8864CF23BA7900F13AF614F52F51" author="Lyons, WG" journalOrPublisher="The Nautilus" pageId="12" pageNumber="13" pagination="35 - 44" title="Chaetopleurastaphylophera (Polyplacophora: Chaetopleuridae), a new species from the Southeastern United States and Bahamas." volume="99" year="1985">Lyons (1985)</bibRefCitation>
|
||
described a juvenile specimen. Examination of the lectotype (NHMUK 1977041/2) from Rio de Janeiro (16.2 mm) (Figure 14C), showed rounded pustules aligned in ribs, 12 on head valve, 3-4 on lateral areas, and 15 ribs on postmucronal area of tail valve. When comparing with the PNAA specimen (15.2 mm), the lectotype has no fusion between pustules and it has a higher number of ribs on the head valve, lateral and postmucronal areas. The pustule morphology and number of ribs, of the lectotype is similar to specimens that
|
||
<bibRefCitation id="89FDC4CE6B81D8DF393D40B24C2956D2" author="Garcia-Rios, CI" journalOrPublisher="Editorial Isla Negra, San Juan Puerto Rico" pageId="12" pageNumber="13" title="Los Quitones de Puerto Rico." year="2003">
|
||
<normalizedToken id="B9FC54069CD360CE130DB77485B744E8" originalValue="García-Ríos">Garcia-Rios</normalizedToken>
|
||
(2003
|
||
</bibRefCitation>
|
||
: fig. 77-81) figured from Puerto Rico. Overall, the PNAA specimens showed similarities with previously figured specimens from the Bahamas, Florida and Puerto Rico in the girdle scales and spicules, and in the morphology of the major lateral radula teeth (
|
||
<bibRefCitation id="89D12D4C2C180CAB17317DA98E0E1BD2" author="Ferreira, JA" journalOrPublisher="Bulletin of the Southern California Academy of Sciences" pageId="11" pageNumber="12" pagination="56 - 64" title="The genus Calloplax Thiele, 1909 (Mollusca: Polyplacophora) in the Americas." volume="77" year="1978 b">Ferreira 1978b</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="F6EE9C18FA897201487D1B0327BA7FE0" author="Lyons, WG" journalOrPublisher="The Nautilus" pageId="12" pageNumber="13" pagination="35 - 44" title="Chaetopleurastaphylophera (Polyplacophora: Chaetopleuridae), a new species from the Southeastern United States and Bahamas." volume="99" year="1985">Lyons 1985</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="29A5E1A196FD21BDBE5EBCAE31C5C2B9" author="Kaas, P" journalOrPublisher="Brill / Backhuys, Leiden" pageId="12" pageNumber="13" title="Monograph of Living Chitons (Mollusca: Polyplacophora). Vol 5. Suborder Ischnochitonina: Ischnochitonidae: Ischnochitoninae (concluded); Callistoplacinae; Mopaliidae. Addition to vols. 1 - 4." year="1994">Kaas and Van Belle 1994</bibRefCitation>
|
||
,
|
||
<bibRefCitation id="432F5D7FFC20C8CE3164FC20C765E697" author="Garcia-Rios, CI" journalOrPublisher="Editorial Isla Negra, San Juan Puerto Rico" pageId="12" pageNumber="13" title="Los Quitones de Puerto Rico." year="2003">
|
||
<normalizedToken id="A22BA3DFF9AFD1B374B7B95A4B96E336" originalValue="García-Ríos">Garcia-Rios</normalizedToken>
|
||
2003
|
||
</bibRefCitation>
|
||
).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |