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142 lines
16 KiB
XML
<document id="9F69CB9C4F97FAE7DAE358B9520FA6D5" ID-CLB-Dataset="35028" ID-DOI="http://dx.doi.org/10.3897/zse.91.5417" ID-GBIF-Dataset="41668aff-331c-4bf3-b7fe-f89aacd4cd60" ID-Pensoft-Pub="1860-0743-2-151" ID-ZooBank="D2E0E6B8EFAB4D2593E664B9C212679D" ModsDocAuthor="" ModsDocDate="2015" ModsDocID="1860-0743-2-151" ModsDocOrigin="Zoosystematics and Evolution 91 (2)" ModsDocTitle="Description and morphology of the “Juan de Fuca vent mussel”, Benthomodioluserebus sp. n. (Bivalvia, Mytilidae, Bathymodiolinae): “Phylogenetically basal but morphologically advanced”" checkinTime="1439308598859" checkinUser="pensoft" docAuthor="Oliver, P. Graham" docDate="2015" docId="2A7AA79955C18BACF567013B9635612B" docLanguage="en" docName="ZoosystEvol 91(2): 151-165" docOrigin="Zoosystematics and Evolution 91 (2)" docSource="http://dx.doi.org/10.3897/zse.91.5417" docTitle="Benthomodiolus abyssicola Knudsen 1970" docType="treatment" docVersion="6" lastPageNumber="160" masterDocId="FFE55001A47B64728B74FFD9FFE28A2D" masterDocTitle="Description and morphology of the " Juan de Fuca vent mussel ", Benthomodioluserebus sp. n. (Bivalvia, Mytilidae, Bathymodiolinae): " Phylogenetically basal but morphologically advanced "" masterLastPageNumber="165" masterPageNumber="151" pageNumber="160" updateTime="1701382628324" updateUser="ExternalLinkService">
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<mods:title id="E74977711114916B368BEDE96C693CCB">Description and morphology of the " Juan de Fuca vent mussel ", Benthomodioluserebus sp. n. (Bivalvia, Mytilidae, Bathymodiolinae): " Phylogenetically basal but morphologically advanced "</mods:title>
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<mods:namePart id="F2E977E9C7624B32285603FF12F92FF6">Oliver, P. Graham</mods:namePart>
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<mods:title id="32A42FBC56FD4FE6F49FDF3DDD13C28F">Zoosystematics and Evolution</mods:title>
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<mods:date id="76735107DC2440B6E49D85A59CB56A76">2015</mods:date>
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<mods:number id="016CA6F7B09D6D6FBE7CC048F478F2F6">91</mods:number>
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<mods:classification id="93C500F9FC520AEA4FE2CDE9AE202AF4">journal article</mods:classification>
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<mods:identifier id="E16033FE0AEB4D78AA68A26535539399" type="DOI">http://dx.doi.org/10.3897/zse.91.5417</mods:identifier>
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<mods:identifier id="7C7A03E84D7144980EF8B94694F496D9" type="Pensoft-Pub">1860-0743-2-151</mods:identifier>
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<treatment id="2A7AA79955C18BACF567013B9635612B" ID-GBIF-Taxon="127875661" LSID="urn:lsid:plazi:treatment:2A7AA79955C18BACF567013B9635612B" httpUri="http://treatment.plazi.org/id/2A7AA79955C18BACF567013B9635612B" lastPageNumber="160" pageId="9" pageNumber="160">
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<subSubSection id="05CBC478073BD725A5CFBD39C5FBB555" pageId="9" pageNumber="160" type="multiple">
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<paragraph id="BD7C66015985DE6BB6BBDC59F9387832" pageId="9" pageNumber="160">Taxon classification Animalia Mytiloida Mytilidae</paragraph>
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</subSubSection>
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<subSubSection id="3CC5C98DD55BCA782815DA986321ECB5" pageId="9" pageNumber="160" type="nomenclature">
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<paragraph id="2A460E85D3AA8AD7177916A58BAB01BD" pageId="9" pageNumber="160">
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<taxonomicName id="32240034DE2E83A242E51D41787565B0" ID-CoL="LHW9" authority="Knudsen, 1970" authorityName="Knudsen" authorityYear="1970" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus abyssicola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="abyssicola">Benthomodiolus abyssicola (Knudsen, 1970)</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="F84ECF86387AA0E23BA840B61CC20F8E" pageId="9" pageNumber="160" type="reference_group">
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<paragraph id="B521FF1D5DCD5F629C430C19EAEA60AD" pageId="9" pageNumber="160">
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<taxonomicName id="2FF7D6DC55DF3C895100A4968D0E44C8" class="Bivalvia" family="Mytilidae" genus="Modiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Modiolus abyssicola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="abyssicola">Modiolus abyssicola</taxonomicName>
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Knudsen, 1970: 92-94, text figs 55-57, pl. 14, fig. 6.
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</paragraph>
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<paragraph id="254EAB7292CFFF48ADFF966A743951B0" pageId="9" pageNumber="160">
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<taxonomicName id="FA0594AAFEAEBDE2D4DE1420EAC95452" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus abyssicola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="abyssicola">Benthomodiolus abyssicola</taxonomicName>
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(Knudsen) -
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<bibRefCitation id="4B2EB11BEA4179C92F5738B90AFC26A4" author="Dell, RK" journalOrPublisher="National Museum of New Zealand Records" pageId="11" pageNumber="162" pagination="17 - 36" title="Mollusca of the Family Mytilidae (Bivalvia) associated with organic remains from deep water off New Zealand, with revisions of the genera Adipicola Dautzenberg, 1927 and Idasola Iredale, 1915." volume="3" year="1987">Dell 1987</bibRefCitation>
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: 31-33.
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</paragraph>
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<paragraph id="26C7BEF3AE47BB3152ED05BCC9970CFA" pageId="9" pageNumber="160">
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<taxonomicName id="406ADE5A529FE9ECD80FF88305B26FD2" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus abyssicola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="abyssicola">Benthomodiolus abyssicola</taxonomicName>
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(Knudsen) -
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<bibRefCitation id="78A84BF49118417CB88554FCCCE66284" author="Coan, EV" journalOrPublisher="Santa Barbara Museum of Natural History Monographs Number" pageId="11" pageNumber="162" pagination="1 - 766" title="Bivalve seashells of western North America." volume="2" year="2000">Coan et al. 2000</bibRefCitation>
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: 162, pl. 24.
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</paragraph>
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<paragraph id="51DA86882E183A340264C8E730606CD0" pageId="9" pageNumber="160">
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<taxonomicName id="9CCEDC5EFA3D16AB506D4DF1409C7558" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus abyssicola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="abyssicola">Benthomodiolus abyssicola</taxonomicName>
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(Knudsen) -
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<bibRefCitation id="E1C144C81BB96305DE176A1C0009BCE5" author="Coan, EV" journalOrPublisher="Santa Barbara Museum of Natural History" pageId="11" pageNumber="162" pagination="1 - 596" title="Bivalve Seashells of Tropical West America." volumeTitle="Marine Bivalve Mollusks from Baja California to Northern Peru" year="2012">Coan and Valentich-Scott 2012</bibRefCitation>
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, 123, pl. 39.
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</paragraph>
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</subSubSection>
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<subSubSection id="492674379C4445E0D8ACD89B7FDB71D3" pageId="9" pageNumber="160" type="materials_examined">
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<paragraph id="9CA747B9E83BF54F6418EAE6A466947D" pageId="9" pageNumber="160">Material examined.</paragraph>
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<paragraph id="859DEC929A3B6DB7FB09B3A06C8F85D9" pageId="9" pageNumber="160">
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Holotype. Gulf of Panama, E. Pacific,
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<geoCoordinate id="5A61EB55842DD4F2DFA3374AC5410BC6" direction="north" orientation="latitude" precision="925" value="5.8166666">05°49'N</geoCoordinate>
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<geoCoordinate id="3E236DFD660631EE1CA4CF3F0921AD29" direction="west" orientation="longitude" precision="925" value="-78.86667">78°52'W</geoCoordinate>
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, 3670-3270m. ZMUC, not examined.
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</paragraph>
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<paragraph id="50E549656508929A7052085D481A2CC5" pageId="9" pageNumber="160">Paratype. From type locality, 10 specimens examined, ZMUC-BIV-30.</paragraph>
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<paragraph id="14A168D33F081926EDBB925405A5B2F9" pageId="9" pageNumber="160">
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Illustration.Paratypes were dissected by Vita Kenk and her drawing was published in
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<bibRefCitation id="52793CECBA4D350E32BE15D8EE57DC71" author="Coan, EV" journalOrPublisher="Santa Barbara Museum of Natural History" pageId="11" pageNumber="162" pagination="1 - 596" title="Bivalve Seashells of Tropical West America." volumeTitle="Marine Bivalve Mollusks from Baja California to Northern Peru" year="2012">Coan and Valentich-Scott (2012)</bibRefCitation>
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. A copy of the original drawing was sent to me by Paul Valentich-Scott and is reproduced here (Fig. 9f).
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</paragraph>
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<caption id="E9F64F2D89EC3EC25FA1A5D3E91D24AA" pageId="9" pageNumber="160">
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<paragraph id="35D16595CE30F95D1FAF7733835C682B" pageId="9" pageNumber="160">
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Figure 9. Shells and anatomy of paratypes
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<taxonomicName id="DC7950A7CC8A1175BD92B41017CD5899" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus abyssicola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="abyssicola">Benthomodiolus abyssicola</taxonomicName>
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Knudsen, 1970 (ZMUC-BIV-30). a exterior of the right valve of the dissected specimen, b interior of left valve, c dorsal view of a small specimen with well preserved periostracal bristles, d gross anatomy, stained with methylene green after removal of right valve, mantle and ctenidium, e pedal and byssal musculature, f diagram of the gross anatomy of a paratype after Kenk in
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<bibRefCitation id="815A9DC301703B04E9C488B7E73D4526" author="Coan, EV" journalOrPublisher="Santa Barbara Museum of Natural History" pageId="11" pageNumber="162" pagination="1 - 596" title="Bivalve Seashells of Tropical West America." volumeTitle="Marine Bivalve Mollusks from Baja California to Northern Peru" year="2012">Coan and Valentich-Scott 2012</bibRefCitation>
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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="163436C2BDC3018897349315F9E940DD" pageId="9" pageNumber="160" type="shell">
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<paragraph id="089063B55EEE966F39F4666584F4E51C" pageId="9" pageNumber="160">Shell.</paragraph>
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<paragraph id="201B0D987D15C6FCE01DACDD1CD1E464" pageId="9" pageNumber="160">
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The shells have a maximum length of 17.2 mm and the dissected specimen was 17.1 mm in length (Fig. 9
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<normalizedToken id="AB14148225D6FA3E29B0E589891E834B" originalValue="a–b">a-b</normalizedToken>
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). The shell is weakly umbonate, wedge shaped with the posterior distinctly deeper than anterior in outline and medially narrowed but weakly sulcate. The beaks are close the anterior margin with a total length /anterior length of 0.22. The sculpture is weak of commarginal lines only. Fine periostracal hairs are present (Fig. 9c) but worn off in the larger specimens.
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</paragraph>
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</subSubSection>
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<subSubSection id="18D9A08530CC8F0268850060152DFE32" pageId="9" pageNumber="160" type="pedal byssus musculature">
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<paragraph id="0ED0B9D8F81459D3763E81CA58EA5935" pageId="9" pageNumber="160">Pedal byssus musculature.</paragraph>
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<paragraph id="618FEADB2D919BF2746C113874BB0ABE" pageId="9" pageNumber="160">
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The byssal retractors (pbr2 and pbr1) are widely separated with pbr2 attached immediately behind the umbonal cavity (Fig. 9
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<normalizedToken id="C11B0DC733871151F5300A122B9FF351" originalValue="e–f">e-f</normalizedToken>
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). The angle between the byssal retractors is acute. The anterior pedal retractor (apr) is more slender than the posterior byssal retractor (pbr1). The posterior protractor muscle (ppr) is slender and incorporated into the anterior byssal retractor (Fig. 9
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<normalizedToken id="2FCA58F249ACA6F7D7E4746F73C187FE" originalValue="e–f">e-f</normalizedToken>
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).
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</paragraph>
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</subSubSection>
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<subSubSection id="D09FB8EEE2D57E888B8D7058C568A47A" pageId="9" pageNumber="160" type="ctenidium and labial palps">
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<paragraph id="D1D444402ED395A4A918D7C1FAB4E171" pageId="9" pageNumber="160">Ctenidium and labial palps.</paragraph>
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<paragraph id="62873DFF417BDA32FA8AC8435FE6CB44" pageId="9" pageNumber="160">The ctenidium consists of both demibranchs with relatively short strap-like filaments and has a flimsy appearance with weak inter-filamentar junctions (Figs 9d, 10f). The ascending and descending arms of the filaments are fused for only a short distance (Fig. 10f). The filaments have a single row of ciliary junctions on the ascending and descending arms (Fig. 10g). The frontal cilia are present but the abfrontal surfaces are largely devoid of epithelium, probably a consequence of poor fixation. Where present a weak polygonal pattern can be seen (Fig. 10h).</paragraph>
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<caption id="D4AF1712CD7360C27CD021499AF8F0B1" pageId="9" pageNumber="160">
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<paragraph id="58E3905A98F98611811CC535D369865E" pageId="9" pageNumber="160">
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Figures 10.
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<normalizedToken id="2067C010B885D080A43E9E6FD673A2A7" originalValue="a–e">a-e</normalizedToken>
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The ctenidium of
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<taxonomicName id="4637157246E68A4D481654C771B08AE2" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus lignocola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="lignocola">Benthomodiolus lignocola</taxonomicName>
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a gross anatomy, b SEM of whole filaments, c SEM of inter filamentar junction, d SEM of tip of filament, e SEM of polygonal surface of microvilli (
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<bibRefCitation id="3BF0BCC12DE6C4C6CE015FC21D9B0D30" author="Knudsen, J" journalOrPublisher="Galathea Reports" pageId="11" pageNumber="162" pagination="163 - 209" title="The systematics and biology of abyssal and hadal Bivalvia." volume="5" year="1970">Knudsen 1970</bibRefCitation>
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). Figures 4
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<normalizedToken id="379A1E25F38994ABB08631F707BAC016" originalValue="f–h">f-h</normalizedToken>
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. The ctenidium of
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<taxonomicName id="E89E24E95572B5B9CDC95FFE20945EA4" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus geikotsucola" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="geikotsucola">Benthomodiolus geikotsucola</taxonomicName>
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. f SEM of a whole filaments gross anatomy, g SEM of inter filamentar junction, h SEM of the polygonal surface.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="FEA9B00B4D3E8EE18A574199298E29E3" pageId="9" pageNumber="160" type="mantle edge and apertures">
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<paragraph id="588A160A2032203E4A6E1ACD9AAB4338" pageId="9" pageNumber="160">Mantle edge and apertures.</paragraph>
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<paragraph id="382905D6AAACA0B426C2C35D2D263A1A" pageId="9" pageNumber="160">The mantle edge is free along its entire length except for a small junction with the gill axis of the ctenidium to form a small exhalant aperture (Fig. 9d, f). The mantle edge bears weak folds posteriorly but smooth ventrally and anteriorly.</paragraph>
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</subSubSection>
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<subSubSection id="625EE24F9764B375FBFF78737D92D0C5" pageId="9" pageNumber="160" type="alimentary system">
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<paragraph id="2C096365C82287E2255A7FE1FBD6257A" pageId="9" pageNumber="160">Alimentary system.</paragraph>
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<paragraph id="F6A86D0DEE7284073274B5B7C0549BBE" pageId="9" pageNumber="160">The gut follows a simple route with the oesophagus, stomach and mid gut in a line running across the dorsal surface of the visceral mass (Fig. 9f). The hindgut descends into the visceral mass and returns to form a distinct loop (Fig. 9f, hgl) before passing through the heart.</paragraph>
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</subSubSection>
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</treatment>
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</document> |