130 lines
14 KiB
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130 lines
14 KiB
XML
<document id="C7AEEC527D382FF0E3690759C0C39422" 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="D9B4485B0A103AD090EFBD09C5F5BF56" docLanguage="en" docName="ZooKeys 665: 1-36" docOrigin="ZooKeys 665" docSource="http://dx.doi.org/10.3897/zookeys.665.10476" docTitle="Ischnochiton erythronotus C. B. Adams 1845" 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="12B16D9EDE03E506673E90720D43D0C6">Chitons (Mollusca, Polyplacophora) from Alacranes Reef, Yucatan, Mexico</mods:title>
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<mods:namePart id="4F5AD190463C8529BE7F2123691F8184">Reyes-Gomez, Adriana</mods:namePart>
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<mods:namePart id="093F16AB642BC47B07084795558AA9CC">Ortigosa, Deneb</mods:namePart>
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<mods:namePart id="6BE61BBAC72651B7648015394B5F6498">Simoes, Nuno</mods:namePart>
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<mods:date id="CBB80BBB208C5E84B3EB9D6872C7B97E">2017</mods:date>
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<mods:detail id="EA723D73286CFE428825F299A81957B2" type="volume">
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<mods:number id="83C8177F812EA00B39D58EA408319B1B">665</mods:number>
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<mods:url id="E21BCC2DBB7E4E32094AE6D2BD4DA4E8">http://dx.doi.org/10.3897/zookeys.665.10476</mods:url>
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<mods:classification id="171648787291B1AEDCFA9354A24654E0">journal article</mods:classification>
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<mods:identifier id="5FC09CEBFB907E8C6655B08968C0F437" type="DOI">http://dx.doi.org/10.3897/zookeys.665.10476</mods:identifier>
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<mods:identifier id="77F70EED4649E760A06C1308881082FE" type="Pensoft-Pub">1313-2970-665-1</mods:identifier>
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<treatment id="D9B4485B0A103AD090EFBD09C5F5BF56" ID-GBIF-Taxon="128123033" LSID="urn:lsid:plazi:treatment:D9B4485B0A103AD090EFBD09C5F5BF56" httpUri="http://treatment.plazi.org/id/D9B4485B0A103AD090EFBD09C5F5BF56" lastPageNumber="1" pageId="0" pageNumber="1">
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<subSubSection id="D6C75F2DC8C693D6361282A7E2EC15C9" pageId="0" pageNumber="1" type="nomenclature">
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<paragraph id="D637764686A6550CBE86687CA63C7B98" pageId="0" pageNumber="1">
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<taxonomicName id="7FD6A802E62E7111C3CA27FC532A4615" ID-CoL="3Q4MP" authority="C. B. Adams, 1845" authorityName="C. B. Adams" authorityYear="1845" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ischnochiton erythronotus" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="erythronotus">Ischnochiton erythronotus (C. B. Adams, 1845)</taxonomicName>
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Figures 2
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<normalizedToken id="0074AC276320B93B270131080493F2B7" originalValue="A–H">A-H</normalizedToken>
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, 3
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<normalizedToken id="5613364975F7EB69CC234CBE2C6667F1" originalValue="A–G">A-G</normalizedToken>
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</paragraph>
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</subSubSection>
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<subSubSection id="CFA4D2BFBA1CE24C5A09863AF4C33307" pageId="0" pageNumber="1" type="materials_examined">
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<paragraph id="6F9189844F041D7494A13E2401F77206" pageId="0" pageNumber="1">Material examined.</paragraph>
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<paragraph id="07E637A6F0810BC1627F0770B9F46173" pageId="0" pageNumber="1">
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20 specimens; 0.5-16 mm long, 0.3-8.5 mm wide. Laguna Arrecifal Desterrada (CNMO4980), Isla Perez (CNMO4981, CNMO4982, CNMO5002),
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<normalizedToken id="127452A68C83B5AD911041A875506454" originalValue="Cabaña">Cabana</normalizedToken>
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y Playa CONANP (CNMO4983, CNMO4984, CNMO4989, CNMO4998, CNMO5000, CNMO5003, CNMO5004), Cabezas entre Blanca y Pajaros (CNMO4985), Playa Norte (CNMO4986, CNMO4988, CNMO5001), Playa Arrecifal (CNMO4987).
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</paragraph>
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</subSubSection>
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<subSubSection id="64831BD5423172AE513EA315B5C4295B" pageId="0" pageNumber="1" type="description">
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<paragraph id="96B51512ACA4DECA9C3FC100F28FD1A8" pageId="0" pageNumber="1">Description.</paragraph>
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<paragraph id="7C527E4EA83600341DC76A84E49D0894" pageId="0" pageNumber="1">
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Small-sized chitons, broad oval shape. Color of tegmentum and girdle very variable, mostly creamy, red, purple or light green and mottled with dark brown dots or patches (Figure 2
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<normalizedToken id="93899E06A7D9C3C337436809A9FAB18B" originalValue="A–H">A-H</normalizedToken>
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). Tegmentum sculptured with irregular concentric riblets and longitudinal narrow ribs. Head valve (Figure 3A), semicircular, not notched, sculpturing of irregular concentric ribs, broken into numerous riblets, forming fine radial indicated grooves. Tail valve (Figure 3B), wider than long, mucro postmedian, somewhat elevated; antemucronal area with 9-11 narrow, sometimes branched longitudinal narrow ribs; postmucronal area with concentric riblets and nodules, forming 19-23 radial grooves. Intermediate valves (Figure 3C), semi-rectangular outlined, side margins rounded and posterior margin from slightly concave to straight; lateral areas somewhat elevated, sculptured as the head valve, with two to three radial grooves; pleural areas with 12-14 longitudinal ribs, which fade towards the jugal area. Articulamentum laterally short; apophyses narrow, subtriangular shaped, jugal sinus wide and smooth (Figure 3D), slit formula 8
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<normalizedToken id="954EFBEE5EAFED9521B0698BDE4DAFC1" originalValue="–10/1/7–">-10/1/7-</normalizedToken>
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10. Megalaesthetes surrounded by 7-8 large micraesthetes (Figure 3E). Girdle variable in color as tegmentum, with alternating irregular bands of dark and lighter color, dorsally with wide, short scales (Figure 3F), with 10-12 wide and flat ribs. Radula (Figure 3G), with major lateral teeth tricuspid, the outer cusp is shorter than the others, central tooth very narrow anteriorly wider and spatulated.
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</paragraph>
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<caption id="99296FEDBA76674016F02B2D8958A9BD" pageId="0" pageNumber="1">
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<paragraph id="5BA6A82ECF08F240075658FB415276E1" pageId="0" pageNumber="1">
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Figure 2.
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<taxonomicName id="25CC9B75D50D7D720D881CFE7B55B33A" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ischnochiton erythronotus" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="erythronotus">Ischnochiton erythronotus</taxonomicName>
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(C. B. Adams, 1845),
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<normalizedToken id="536152D24826FEEF10E7735B680A56D6" originalValue="A–H">A-H</normalizedToken>
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: in dorsal view, showing the tegmentum color variability A specimen from Laguna Arrecifal Desterrada (CNMO4980, 15.2 mm length) B specimen from Isla Perez (CNMO4981, 93.7 mm length) C specimen from
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<normalizedToken id="60619BE29D1348CC27AC5590A5FDE0DF" originalValue="Cabaña">Cabana</normalizedToken>
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y Playa CONANP (CNMO4983, 11.7 mm length) and D (CNMO5003, 12.9 mm length) E specimen from Cabezas entre Blanca y Pajaros (CNMO4985, 13.6 mm length) F specimen from Playa Norte (CNMO4988, 14.2 mm length) G specimen from Playa Arrecifal (CNMO4987, 15.2 mm length length) and H, in lateral view.
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<taxonomicName id="C2F626A387B6E98B47A68AB1C6EBE6D6" class="Polyplacophora" family="Ischnochitonidae" genus="Stenoplax" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Stenoplax bahamensis" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="bahamensis">Stenoplax bahamensis</taxonomicName>
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Kaas & Van Belle, 1987
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<normalizedToken id="CBFEE4C3567184904259431BB72987D4" originalValue="I–M">I-M</normalizedToken>
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: in dorsal view, showing the tegmentum color variability I specimen from Playa Norte (CNMO4942, CNMO4943, 22.1 mm length) J specimen from Pared Arrecifal (CNMO4957, 24.5 mm) K Laguna Desterrada (CNMO4974, 23.4 mm length), and L and M, in dorsal and lateral view (CNMO4974, 22.8 mm length).
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<taxonomicName id="ED35A25201DCCC45C27B6C26E8E0F9E2" 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) N specimen from Isla Perez (CNMO4994, 12.5 mm length), in dorsal view and O (CNMO4990, 13.4 mm length), in lateral view, SB = 1 cm.
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</paragraph>
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</caption>
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<caption id="A2383BDFD18FEFE464C7A260BD8D77DF" pageId="0" pageNumber="1">
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<paragraph id="F1878ABE72CD75BE014CC2CB4E7598F4" pageId="0" pageNumber="1">
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Figure 3.
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<taxonomicName id="B7E4F3F729D0FC27E81728D8C0568072" class="Polyplacophora" family="Ischnochitonidae" genus="Ischnochiton" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ischnochiton erythronotus" order="Chitonida" pageId="0" pageNumber="1" phylum="Mollusca" rank="species" species="erythronotus">Ischnochiton erythronotus</taxonomicName>
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(C. B. Adams, 1845). Scanning electron images of a specimen from Laguna Arrecifal Desterrada (CNMO4980, 15.2 mm length); A head valve (I) in dorsal view, 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 detail of aesthete system, white arrows indicating the megalaesthetes, black arrows indicating the micraesthetes of intermediate valve IV, SB = 10
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<normalizedToken id="9E9B15BAD95E9E5E9379B76662DAD8F0" originalValue="μm">μm</normalizedToken>
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F girdle scales detail, SB = 100
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<normalizedToken id="8DFC0062546F54AA174B102D50BDC0A9" originalValue="μm">μm</normalizedToken>
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G detail of radular teeth, SB = 100
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<normalizedToken id="EFDEFF7EB581646FE7600B262DD55FD6" 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="4842068B9961A02BC37080904B23290F" pageId="0" pageNumber="1" type="habitat">
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<paragraph id="367862F17C55D473C44D1093DF62DBAC" pageId="0" pageNumber="1">Habitat.</paragraph>
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<paragraph id="D67AFBD34D706A6B6A56D74053FA42A8" pageId="0" pageNumber="1">
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Found in intertidal to shallow subtidal to 12 m depth. Found on dead coral, wood, rock, and sunken turtlegrass,
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<taxonomicName id="992BC5F29801162EF9ADAF20004C118B" class="Liliopsida" family="Hydrocharitaceae" genus="Thalassia" higherTaxonomySource="CoL" kingdom="Plantae" lsidName="Thalassia testudinum" order="Alismatales" pageId="0" pageNumber="1" phylum="Tracheophyta" rank="species" species="testudinum">Thalassia testudinum</taxonomicName>
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Banks ex
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<normalizedToken id="CCDC7AB6001A7391F301400F3E7ABF80" originalValue="König">Koenig</normalizedToken>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="1EF34745A59C6D71CC7AF98A50DA01A6" pageId="0" pageNumber="1" type="remarks">
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<paragraph id="3DBFABDEBB16656D816EEF989BF38A77" pageId="0" pageNumber="1">Remarks.</paragraph>
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<paragraph id="D1F93CF184D2182286AA75B1B0221206" pageId="0" pageNumber="1">
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This species displays a considerable intraspecific variation in color and valve sculpturing; also observed in chitons from Cozumel Island and in Banco Chinchorro reef (in the most southern region of Quintana Roo) (CNMO5558), which was also noted by
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<bibRefCitation id="0C14A79CE01C5DBDB51F1D24A1653EA8" author="Garcia-Rios, CI" journalOrPublisher="Editorial Isla Negra, San Juan Puerto Rico" pageId="12" pageNumber="13" title="Los Quitones de Puerto Rico." year="2003">
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<normalizedToken id="AC910F382D3E8A56D5517821A6555453" originalValue="García-Ríos">Garcia-Rios</normalizedToken>
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(2003)
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</bibRefCitation>
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for specimens from Puerto Rico and
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<bibRefCitation id="4E503D5CA25434AA3D1E363B73B28934" author="Ferreira, JA" journalOrPublisher="Bulletin of Marine Science" pageId="11" pageNumber="12" pagination="81 - 91" title="The Chiton species described by C. B Adams, 1845 from Jamaica." volume="28" year="1978 a">Ferreira (1978a)</bibRefCitation>
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for Jamaica specimens. This variability was found in both, the juvenile and adult chitons morphology. In general, specimens reaching a length from 8-12.1 mm showed more regular and less broken ribs, whereas animals between 13.5-16 mm length developed branched ribs, particularly in pleural areas, and occasionally showed nodule formations on the head and the postmucronal area of the tail valve. This is the most common and abundant chiton species in the PNAA.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |