117 lines
12 KiB
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117 lines
12 KiB
XML
<document id="6F3049EC123FBA43D9068272FF898B63" 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="1258A883EAC1A3E5226FDF2173569302" 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 lignocola Dell 1987" 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="158" updateTime="1701382628324" updateUser="ExternalLinkService">
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<mods:title id="EFCD7E97424AC7330E181FEAAC1CBCD4">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="ACA71889E121CBF6CB3F1EEB91F2A01E">Oliver, P. Graham</mods:namePart>
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<mods:title id="516ABB064CC987D90CC2ACB7C7AD6F0A">Zoosystematics and Evolution</mods:title>
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<mods:part id="0E02E17BD21119E6929A05E66929C429">
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<mods:date id="5C797D480F96ADF50B1F9952F40264DD">2015</mods:date>
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<mods:number id="3952A3A102E894DF812E42D3D3A1BB5C">91</mods:number>
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<mods:number id="BEF89442345EC27FA0F9F255DDA55161">2</mods:number>
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<mods:start id="E65D56847843F61901A98DEE397548CD">151</mods:start>
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<mods:url id="4C7587698A7864BE0AC501076F15EC4C">http://dx.doi.org/10.3897/zse.91.5417</mods:url>
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<mods:classification id="F97C37BED946DB049B4711CE80C86C05">journal article</mods:classification>
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<mods:identifier id="56E0B4279FB457FD5E618F596A525D31" type="DOI">http://dx.doi.org/10.3897/zse.91.5417</mods:identifier>
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<mods:identifier id="07D36EB7D9BDB9EEA29CA3D0D57479D1" type="Pensoft-Pub">1860-0743-2-151</mods:identifier>
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<treatment id="1258A883EAC1A3E5226FDF2173569302" ID-GBIF-Taxon="127875662" LSID="urn:lsid:plazi:treatment:1258A883EAC1A3E5226FDF2173569302" httpUri="http://treatment.plazi.org/id/1258A883EAC1A3E5226FDF2173569302" lastPageId="9" lastPageNumber="160" pageId="7" pageNumber="158">
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<subSubSection id="325ECAFF147ECCB984462B340CE496CC" pageId="7" pageNumber="158" type="multiple">
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<paragraph id="04BC8C974EC53DD3D8F6A6E5EDB11D46" pageId="7" pageNumber="158">Taxon classification Animalia Mytiloida Mytilidae</paragraph>
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</subSubSection>
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<subSubSection id="A02C28D8971757A866D0B7AF1C3C9866" pageId="7" pageNumber="158" type="nomenclature">
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<paragraph id="BC7442C06ABF194BD78E70242ED3CD80" pageId="7" pageNumber="158">
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<taxonomicName id="0396099C0E7FCF40D897C8F3AC09C788" ID-CoL="LHWC" authority="Dell, 1987" authorityName="Dell" authorityYear="1987" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus lignocola" order="Mytilida" pageId="7" pageNumber="158" phylum="Mollusca" rank="species" species="lignocola">Benthomodiolus lignocola Dell, 1987</taxonomicName>
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</paragraph>
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</subSubSection>
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<subSubSection id="864803BDAD58255159070B9A7E216234" pageId="7" pageNumber="158" type="reference_group">
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<paragraph id="7B4C31AC7214E8E4EA14C374CC21DFC8" pageId="7" pageNumber="158">
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<taxonomicName id="6E23512EE3B50924BE88EC48E99721FA" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus lignocola" order="Mytilida" pageId="7" pageNumber="158" phylum="Mollusca" rank="species" species="lignocola">Benthomodiolus lignocola</taxonomicName>
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Dell, 1987: 33-34, figs. 44, 45, 48, 49, 52, and 53.
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</paragraph>
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</subSubSection>
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<subSubSection id="51F9F6B20C21D54B33FC3EA96C7F3A03" pageId="7" pageNumber="158" type="materials_examined">
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<paragraph id="D5DFC78974EAC62F3F977C25F4D76DF4" pageId="7" pageNumber="158">Material examined.</paragraph>
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<paragraph id="CDC26F4F53FD3AE6377C870839F8A4AF" pageId="7" pageNumber="158">
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Holotype. 1 shell, NW of Orete Point, White Island,
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<geoCoordinate id="3FE5BC5ECDFCD6B73FB1D0632F329003" direction="south" orientation="latitude" precision="92" value="-37.395">37°23.7'S</geoCoordinate>
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<geoCoordinate id="2D44D7B890BA0104D1ECFF140ACC0F7E" direction="east" orientation="longitude" precision="92" value="177.65834">177°39.5'E</geoCoordinate>
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, 1075-1100m, 23/Nov/1981; Museum of New Zealand Te Papa Tongarewa M.075023. Not examined, image courtesy of NMNZ.
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</paragraph>
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<paragraph id="B747DD8BC8DBA2E88A33C056A404D1E6" pageId="7" pageNumber="158">
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Paratype. 5 specimens, NE of Chatham Islands, 42°47.10'
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<geoCoordinate id="9B7E19F1DF28C804A581210898F56458" direction="west" orientation="longitude" precision="9" value="-175.76">175°45.60'W</geoCoordinate>
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, 1174-1180m, 22/Aug/1984; NMNZ
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<normalizedToken id="5A10623EACCEE9173EFD0F881D81692D" originalValue="M–">M-</normalizedToken>
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075248/1.
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</paragraph>
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</subSubSection>
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<subSubSection id="626883F5A327B262A1491D6887EADE19" pageId="8" pageNumber="159" type="shell">
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<paragraph id="DB713B9BBAE6DADD0157B94E198068CD" pageId="8" pageNumber="159">
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<pageBreakToken id="3803B3F42F115B12829780508CE9248E" pageId="8" pageNumber="159" start="start">Shell</pageBreakToken>
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.
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</paragraph>
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<paragraph id="C35692E0C661167A4CD2EA76F1BC148A" pageId="8" pageNumber="159">
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The shells have a maximum length of 18.1 mm (Holotype, Fig. 8
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<normalizedToken id="02E6CA80B05B6A5AABA82468EC35DFB4" originalValue="a–b">a-b</normalizedToken>
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) and the dissected specimen was 17.4 mm in length (Fig. 8
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<normalizedToken id="21C0884BBDBCE15D3EE25A9E4B71AFAC" originalValue="c–d">c-d</normalizedToken>
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). The shell is umbonate, weakly arcuate with the posterior distinctly deeper than anterior in outline and medially sulcate. The beaks are rather distant from the anterior margin with a total length /anterior length of 0.23. The sculpture is weak of commarginal lines only except over the sulcate zone where faint fine irregular radial creases are present. Fine periostracal hairs are present but worn off in the larger specimens.
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</paragraph>
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<caption id="EE1627BB24D0A26C1F07608F82C216B4" pageId="8" pageNumber="159">
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<paragraph id="B440EA75165A6F804C1ECB75E2A2BD6F" pageId="8" pageNumber="159">
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Figure 8. Shells and anatomy of
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<taxonomicName id="78E33D3A49E359B885F7B24A29392475" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus lignocola" order="Mytilida" pageId="8" pageNumber="159" phylum="Mollusca" rank="species" species="lignocola">Benthomodiolus lignocola</taxonomicName>
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Dell, 1987. a exterior of the right valve of the holotype (MNNZ M.075023), b-d the shell of the dissected paratype MNNZ M-075248/1,
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<normalizedToken id="6C1D57E91E3820170126E1EC083A6867" originalValue="e–g">e-g</normalizedToken>
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gross anatomy stained with methylene green. e after removal of left valve and mantle, f after further removal of the ctenidium, g diagram of the adductor, pedal and byssal musculature.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="F672517CCD83FF9923438024401DB3D6" pageId="8" pageNumber="159" type="pedal byssus musculature">
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<paragraph id="CAC7808240FE3FA2AC575C11C31833B7" pageId="8" pageNumber="159">Pedal byssus musculature.</paragraph>
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<paragraph id="DD1DBAEDC173119D3D87CA5AFFE8A9D3" pageId="8" pageNumber="159">The byssal retractors (Fig. 8f, g pbr2 and pbr1) are widely separated with pbr2 attached in the rear of the umbonal cavity. 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 with secondary muscles (sppr).</paragraph>
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</subSubSection>
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<subSubSection id="49DFFD5F89C4B271CF323A50A79E264E" lastPageId="9" lastPageNumber="160" pageId="8" pageNumber="159" type="ctenidium and labial palps">
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<paragraph id="4FD3B48D2BE32D0D2D37A5D9A3CE4490" pageId="8" pageNumber="159">Ctenidium and labial palps.</paragraph>
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<paragraph id="FEF9570330DD24B1D9296BD28D005E4F" lastPageId="9" lastPageNumber="160" pageId="8" pageNumber="159">
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The ctenidium consists of both demibranchs with relatively short strap-like filaments and has a flimsy appearance with weak inter-filamentar junctions (Fig. 10a). The ascending and descending arms of the filaments are fused for only a short distance (Fig. 10b, d). The filaments have a single row of ciliary junctions on the ascending and descending arms
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<pageBreakToken id="A656326401FC06FB23E6CA77EAD0DAE2" pageId="9" pageNumber="160" start="start">(</pageBreakToken>
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Fig. 10c). 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. 10e).
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</paragraph>
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</subSubSection>
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<subSubSection id="81A0553DAC151EBB1F9702CFEEA533D3" pageId="9" pageNumber="160" type="mantle edge and apertures">
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<paragraph id="67C7BE494DFA40884B106E1E9A1A87BB" pageId="9" pageNumber="160">Mantle edge and apertures.</paragraph>
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<paragraph id="7B6F3A49430A0A1D17950E528201D45A" pageId="9" pageNumber="160">The mantle edge (Fig. 8e) is free for most of its length and fused only posteriorly to separate the ventral gape for the exhalant aperture. The mantle edge along the ventral gape is smooth.</paragraph>
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</subSubSection>
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<subSubSection id="1E4399555AEFED76AA0462809F0B30FB" pageId="9" pageNumber="160" type="alimentary system">
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<paragraph id="A83124BAAF7280B3785F8860DD18A219" pageId="9" pageNumber="160">Alimentary system.</paragraph>
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<paragraph id="A38C7E55E985CBBEA4C2F3C85A2C5F44" pageId="9" pageNumber="160">
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The stomach was not dissected. The gut follows a similar path to that in
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<taxonomicName id="8F075274065D8CB636B345348600A452" class="Bivalvia" family="Mytilidae" genus="Benthomodiolus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Benthomodiolus erebus" order="Mytilida" pageId="9" pageNumber="160" phylum="Mollusca" rank="species" species="erebus">Benthomodiolus erebus</taxonomicName>
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but the hind gut loop is distinct with a short reversed portion.
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |