148 lines
16 KiB
XML
148 lines
16 KiB
XML
<document id="19F5385EFB060080AC217797C9C46807" 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="3CDECA1F7BF083C65CECD2DF220D2167" docLanguage="en" docName="ZooKeys 665: 1-36" docOrigin="ZooKeys 665" docSource="http://dx.doi.org/10.3897/zookeys.665.10476" docTitle="Tonicia schrammi Shuttleworth 1856" docType="treatment" docVersion="6" lastPageNumber="4" masterDocId="CB0B5931FFA4FF90FFDBFFF5FFC0FFC9" masterDocTitle="Chitons (Mollusca, Polyplacophora) from Alacranes Reef, Yucatan, Mexico" masterLastPageNumber="36" masterPageNumber="1" pageNumber="2" updateTime="1701377323243" updateUser="ExternalLinkService">
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<mods:title id="2814F71EC7BAA0068DA7BFB0CCC4F002">Chitons (Mollusca, Polyplacophora) from Alacranes Reef, Yucatan, Mexico</mods:title>
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<mods:namePart id="E812380F8310716B04B6F921DD5A4893">Reyes-Gomez, Adriana</mods:namePart>
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<mods:namePart id="C5C2F4774918B0942D4E39BDA0E3929F">Ortigosa, Deneb</mods:namePart>
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<mods:namePart id="92955C83C98A592A4E1C9153331F06A3">Simoes, Nuno</mods:namePart>
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<mods:typeOfResource id="52620F64DEB63721C676034B2410166A">text</mods:typeOfResource>
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<mods:date id="9CF4A49159D340A794D0AE60F525EA69">2017</mods:date>
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<mods:detail id="607539F0B9D36D74091933317EE5ABDC" type="volume">
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<mods:number id="993147BB126A237C65F64193D6B0262D">665</mods:number>
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<mods:url id="C01A808914F44663E450BFF68ACAF40C">http://dx.doi.org/10.3897/zookeys.665.10476</mods:url>
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<mods:classification id="FA40D3C80912DE5F600CCD12D7B78554">journal article</mods:classification>
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<mods:identifier id="CAF9C39B1321876572FC717D0C4C7621" type="DOI">http://dx.doi.org/10.3897/zookeys.665.10476</mods:identifier>
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<mods:identifier id="F6B10E3607CCC6FAC9F866DCDDC2B600" type="Pensoft-Pub">1313-2970-665-1</mods:identifier>
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<mods:identifier id="52C6696374FC2972BD0162F55CD876D4" type="ZooBank">9117BAF17E9B4E2599EC7C8C6A8F456E</mods:identifier>
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</mods:mods>
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<treatment id="3CDECA1F7BF083C65CECD2DF220D2167" ID-GBIF-Taxon="128123039" LSID="urn:lsid:plazi:treatment:3CDECA1F7BF083C65CECD2DF220D2167" httpUri="http://treatment.plazi.org/id/3CDECA1F7BF083C65CECD2DF220D2167" lastPageId="3" lastPageNumber="4" pageId="1" pageNumber="2">
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<subSubSection id="05554A98A75B83FB9E2641011FB37C06" pageId="1" pageNumber="2" type="nomenclature">
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<paragraph id="A396B85665669B7F0E4BE2EC5B6DDC18" pageId="1" pageNumber="2">
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<taxonomicName id="FAAF805CED0B4B9F3EBA84F62A1CFE13" ID-CoL="7CGKW" authority="Shuttleworth, 1856" authorityName="Shuttleworth" authorityYear="1856" class="Polyplacophora" family="Chitonidae" genus="Tonicia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tonicia schrammi" order="Chitonida" pageId="1" pageNumber="2" phylum="Mollusca" rank="species" species="schrammi">Tonicia schrammi (Shuttleworth, 1856)</taxonomicName>
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Figures 6
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<normalizedToken id="6E6BE7AD21169EAD0159951BEEF3C885" originalValue="A–C">A-C</normalizedToken>
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, 7
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<normalizedToken id="CEAD8EE9B39E329AEDD293F2E71EE13C" originalValue="A–K">A-K</normalizedToken>
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</paragraph>
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</subSubSection>
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<subSubSection id="454E0255C5EFBD678383C514C453AE4B" pageId="1" pageNumber="2" type="materials_examined">
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<paragraph id="C1753F41411DCCB97EE19EF30A68C01B" pageId="1" pageNumber="2">Material examined.</paragraph>
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<paragraph id="C2A9A617AF25E2C740FF91FF50592A14" pageId="1" pageNumber="2">
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Two specimens; 27.5 and 28.5 mm long, 14 and 14.2 mm wide.
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<normalizedToken id="AEA69BC6F5600590EA862F6B81E11270" originalValue="Cabaña">Cabana</normalizedToken>
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CONANP (CNMO4992).
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</paragraph>
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</subSubSection>
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<subSubSection id="CEBED528C1EFA47C4BD8FE5CB01A38F1" lastPageId="3" lastPageNumber="4" pageId="1" pageNumber="2" type="description">
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<paragraph id="D6D6AA826A6FB8FB8BCBE8D72A30455B" pageId="1" pageNumber="2">Description.</paragraph>
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<paragraph id="493F0B5E25787B32F5F677AA852FDDF0" lastPageId="3" lastPageNumber="4" pageId="1" pageNumber="2">
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Medium-sized chitons with an oval outline. Live specimens mostly pink, dark purple and white (Figure 6B), turning to orange when preserved; creamy with large dark brown spots (Figure 6A, C); girdle with narrow white bands, and rounded small spots scattered without any clear pattern. Head valve (Figure 7A) semicircular and slightly notched; sculpture pattern smooth, with fainted radial irregular knobs. Tail valve (Figure 7B) oval; mucro elevated and slightly postmedian; postmucronal area bear few knobs radially oriented to the mucro; antemucronal area smooth. Intermediate valves (Figure 7C) with strongly bluntly pointed apex. Lateral areas (Figure 7D) strongly indicated by a diagonal rib of semi rectangular knobs, also present on the posterior margin, which gives the appearance of dentations, and in between them a third rib with fewer knobs that are closer to the posterior margin. Ocelli arranged in irregular radial bands. Micraesthetes small, grouped with no apparent number and ar
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<pageBreakToken id="8A8CAE7960147892B2536AA13129BEE9" pageId="2" pageNumber="3" start="start">rangement</pageBreakToken>
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, others seem to be scattered (Figure 7E). Tegmentum with scattered small black rounded ocelli, forming radial irregular bands (Figure 7F). Girdle covered with tiny spicules. Apophyses short and wide, semi triangular shaped (Figure 7G). Articulamentum white and thick, insertion teeth hardly dentate, slit deep (Figure 7H); slit
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<pageBreakToken id="2EF36A50DC5B4DED4A9E2FAC382F4869" pageId="3" pageNumber="4" start="start">formula</pageBreakToken>
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9
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<normalizedToken id="E043EB2EDFE2D76F47530B1A9EA1BB9F" originalValue="–10/1/10–">-10/1/10-</normalizedToken>
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13. Radula (Figure 7I) with central teeth long and distally narrow, minor lateral tooth somewhat arched, long, smaller than central tooth, distally somewhat pointed (Figure 7J); major lateral tooth as one single, rounded, wide plate, not dentate (Figure 7K).
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</paragraph>
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<caption id="8CF8C83F3FD1B37296F774CF84CE6474" pageId="3" pageNumber="4">
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<paragraph id="8251DD82344AC8D66150587507930D7D" pageId="3" pageNumber="4">
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Figure 6.
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<taxonomicName id="8414AB1EC44BF29AF89B992A8494E6A7" class="Polyplacophora" family="Chitonidae" genus="Tonicia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tonicia schrammi" order="Chitonida" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="schrammi">Tonicia schrammi</taxonomicName>
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(Shuttleworth, 1856), A preserved specimen, showing the color change B life specimen coloration from
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<normalizedToken id="BED6B603C539E842FD3895385E2A7181" originalValue="Cabaña">Cabana</normalizedToken>
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CONANP (CNMO4992, 28.5 mm length) C same specimen in lateral view, SB = 1 cm.
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<taxonomicName id="986343D4480489E8FCD41A3AA74F6319" class="Polyplacophora" family="Tonicellidae" genus="Lepidochitona" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lepidochitona liozonis" order="Chitonida" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="liozonis">Lepidochitona liozonis</taxonomicName>
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(Dall & Simpson, 1901) D dorsal view and E lateral view of a specimen from Isla Perez (CNMO5002, 10 mm), SB = 1 cm.
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<taxonomicName id="89C99097C0598B2ABC66F78F1B91AC34" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthochitona hemphilli" order="Chitonida" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="hemphilli">Acanthochitona hemphilli</taxonomicName>
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(Pilsbry, 1893) F dorsal view of a specimen from Laguna Arrecifal (CNMO4997, 34.8 mm length), SB = 1 cm.
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<taxonomicName id="0D61B7C531C2653926DE34FF71A378A6" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthochitona roseojugum" order="Chitonida" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="roseojugum">Acanthochitona roseojugum</taxonomicName>
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Lyons, 1988 G in dorsal view and H detail of valve IV and V in lateral view, of specimen from Isla Perez (CNMO4995, 3 mm length), SB = 1 mm.
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<taxonomicName id="E5A1644585D7E70AADC25E9DFA2A1626" class="Polyplacophora" family="Acanthochitonidae" genus="Acanthochitona" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Acanthochitona zebra" order="Chitonida" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="zebra">Acanthochitona zebra</taxonomicName>
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Lyons, 1988 I dorsal view of a life specimen J same specimen in preserved conditions K in lateral view of same specimen from
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<normalizedToken id="2D84294C3EB051CAB7C536948A6B5A85" originalValue="Cabaña">Cabana</normalizedToken>
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CONANP (CNMO4979, 9.2 mm length), SB = 5 mm.
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<taxonomicName id="261E400A48B5A8D69A3756A40DCD4551" class="Polyplacophora" family="Acanthochitonidae" genus="Cryptoconchus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Cryptoconchus floridanus" order="Chitonida" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="floridanus">Cryptoconchus floridanus</taxonomicName>
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(Dall, 1889) L dorsal view of life specimen M lateral view of same specimen under preserved conditions from Isla Perez (CNMO4996, 9.3 mm length), SB = 5 mm N (CNMO4996) and O (CNMO5560, 20.3
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<normalizedToken id="49F296394FEE1328574DB2FABF4ADDEF" originalValue="×">x</normalizedToken>
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8.3 mm length, Banco Chinchorro, Quintana Roo), shows the length comparison, SB = 1 cm.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="17EFB9EEED3AB0B3F3D31312543FBD7A" pageId="3" pageNumber="4" type="habitat">
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<paragraph id="AD8140949BC8D20EB0F86608D5308D1F" pageId="3" pageNumber="4">Habitat.</paragraph>
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<paragraph id="22EBC8C4C96A62A620445DB075421EB7" pageId="3" pageNumber="4">
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Found in the intertidal on rocks and turtlegrass,
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<taxonomicName id="D1BFE1BDDB32CDC46B8D761EADAD338D" lsidName="T. testudinum" pageId="3" pageNumber="4" rank="species" species="testudinum">T. testudinum</taxonomicName>
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.
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</paragraph>
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</subSubSection>
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<subSubSection id="D67D6591CA6164DFFDD8AC5CA18DFEEE" pageId="3" pageNumber="4" type="remarks">
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<paragraph id="30AABBAA41FF0EDEA80B90D5DBA314BD" pageId="3" pageNumber="4">Remarks.</paragraph>
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<paragraph id="CDDFA2658E2ED8BEE14C8F64E92D293A" pageId="3" pageNumber="4">
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<bibRefCitation id="4DAEFB712D73A9BD3ED9BBB675D6B75F" 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="6C38FB17E7A79FAFA4DB9AE99D729698" originalValue="García-Ríos">Garcia-Rios</normalizedToken>
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(2003
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</bibRefCitation>
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: fig. 109) described Puerto Rico specimens, and figured the radula microstructure of a 21 mm specimen, which showed the medium tooth narrow and bent outward on its posterior end, and the minor lateral teeth somewhat straight. Our examination of a PNAA specimen of 28.5 mm length revealed the minor lateral tooth arched inwards, and the central tooth is rounded on its distal end (Figure 7J). Microstructure examination of PNAA specimen (28.5 mm) showed the ocelli aligned in irregular bans, somewhat in quincunx towards to the apex, and less abundant than the previous descriptions (Figure 7D, F).
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</paragraph>
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<caption id="C5C31B1EF977ECDD70DFA66DEDFADF48" pageId="3" pageNumber="4">
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<paragraph id="93C1A3202C67424199DD0E319FA8C0FE" pageId="3" pageNumber="4">
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Figure 7.
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<taxonomicName id="A869C22AAFCE7FAF83C92E1E519A66E9" class="Polyplacophora" family="Chitonidae" genus="Tonicia" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Tonicia schrammi" order="Chitonida" pageId="3" pageNumber="4" phylum="Mollusca" rank="species" species="schrammi">Tonicia schrammi</taxonomicName>
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(Shuttleworth, 1856). Scanning electron images of a specimen from
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<normalizedToken id="4D22E62126CC01D530F2EFC29024BA58" originalValue="Cabaña">Cabana</normalizedToken>
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CONANP (CNMO4992, 27.5 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 = 2 mm D detail of lateral area in dorsal view of the intermediate valve IV, SB = 1 mm E lateral area ocelli detail of intermediate valve IV, SB = 100
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<normalizedToken id="6BA2F33A1740E34F96045B49EF10670B" originalValue="μm">μm</normalizedToken>
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F head valve (I) detail, showing the ocelli alignment, SB = 50
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<normalizedToken id="0A996582BB140B4A97BB9B9885318642" originalValue="μm">μm</normalizedToken>
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. G, ventral view of intermediate valve IV, SB = 1 mm H insertion teeth and slit detail of intermediate valve IV in ventral view, SB = 50
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<normalizedToken id="5FD69DDA9D4023CCD7FA046EC5AD3895" originalValue="μm">μm</normalizedToken>
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I radular teeth, SB = 100
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<normalizedToken id="CD616F484CECD7391AAE36E337B5F99B" originalValue="μm">μm</normalizedToken>
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J central and minor lateral teeth detail, SB = 10
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<normalizedToken id="3E0892386C2B96F951567081E272ED7D" originalValue="μm">μm</normalizedToken>
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K major lateral teeth detail, SB = 50
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<normalizedToken id="FE30B7AF3B519C46E75B12C2C1ED093C" originalValue="μm">μm</normalizedToken>
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.
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</paragraph>
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</caption>
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<paragraph id="C5F1647B094C7CD35C75030C0E032AC8" pageId="3" pageNumber="4">
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The examination of one paralectotype (NMBE19115/5a) (Figure 14D), revealed a higher density of ocelli somewhat aligned in groups on the lateral areas, head valve and postmucronal area of tail valve.
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<bibRefCitation id="DBD7CF4BF279DA21BE5207365BD22673" author="Kaas, P" journalOrPublisher="Bril EJ l, Leiden" pageId="12" pageNumber="13" title="Monograph of Living Chitons (Mollusca: Polyplacophora). 6. Suborder Ischnochitonina (concluded): Schizochitonidae & Ischnochitonidae" volumeTitle="Additions to Volumes 1 - 5" year="2006">Kaas et al. (2006)</bibRefCitation>
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described a specimen from Puerto Rico (La Paguera, Media Luna) with similar ocelli arrangement pattern and density. Our specimens showed less density of ocelli and although they appear to be aligned, their arrangement is more irregular (Figure 7D, F). The knowledge of this species in the Mexican Caribbean is limited, and only further studies will corroborate the morphologic distinctions of specimens from this area. In this study, we extend the distribution range of
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<taxonomicName id="C76BC4BF92B9842518DC36C4F5D4485C" lsidName="T. schrammi" pageId="3" pageNumber="4" rank="species" species="schrammi">T. schrammi</taxonomicName>
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to the PNAA.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |