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140 lines
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<document id="7BE88FE5205164FD9CCF71ED0FE2AEB5" ID-CLB-Dataset="34499" ID-DOI="http://dx.doi.org/10.3897/zookeys.506.9550" ID-GBIF-Dataset="22b0e45b-65bf-41a5-ad59-91efe29d6e4c" ID-PMC="PMC4467186" ID-Pensoft-Pub="1313-2970-506-127" ID-PubMed="26085799" ID-ZooBank="AD1565A529414D94B95A3288FB0D9391" ModsDocAuthor="" ModsDocDate="2015" ModsDocID="1313-2970-506-127" ModsDocOrigin="ZooKeys 506" ModsDocTitle="Notes on Metaphiremultitheca (Chen, 1938) (Oligochaeta, Megascolecidae) recorded from Vietnam, with descriptions of two new species" checkinTime="1451244276430" checkinUser="pensoft" docAuthor="Nguyen, Anh D. & Nguyen, Tung T." docDate="2015" docId="E8E04E2F1C557A76B0F913613E6E4466" docLanguage="en" docName="ZooKeys 506: 127-136" docOrigin="ZooKeys 506" docSource="http://dx.doi.org/10.3897/zookeys.506.9550" docTitle="Amynthas nhonmontis Nguyen & Nguyen, 2015, sp. n." docType="treatment" docUuid="6231C5E9-8812-419D-BDB9-34007C10B1F4" docUuidSource="ZooBank" docVersion="6" lastPageNumber="132" masterDocId="0111FFD431023F4B6A6FFF84FFE3D900" masterDocTitle="Notes on Metaphiremultitheca (Chen, 1938) (Oligochaeta, Megascolecidae) recorded from Vietnam, with descriptions of two new species" masterLastPageNumber="136" masterPageNumber="127" pageNumber="129" updateTime="1701379610688" updateUser="ExternalLinkService">
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<mods:titleInfo id="3E0D7EE2BA10FDB75F9114FA4E79AAAD">
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<mods:title id="21705D07C07393F3DD054E78650DA556">Notes on Metaphiremultitheca (Chen, 1938) (Oligochaeta, Megascolecidae) recorded from Vietnam, with descriptions of two new species</mods:title>
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<mods:namePart id="540E67592DB425121906B795172837A2">Nguyen, Anh D.</mods:namePart>
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<mods:roleTerm id="A7984F53BA1FCB551E19A634F29ED72A">Author</mods:roleTerm>
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<mods:namePart id="6F26C907A756555E5BFC88A0648B72FD">Nguyen, Tung T.</mods:namePart>
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<mods:typeOfResource id="6CE9E85CAFB50C0167428CEB50AEAC16">text</mods:typeOfResource>
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<mods:title id="C0CE167AD28AC4AB0531B73FCACF2387">ZooKeys</mods:title>
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<mods:date id="85D1F7E108C42D298A29AE1BB0C89BEF">2015</mods:date>
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<mods:detail id="35141875E0A1605F582AC93BBA9790BB" type="volume">
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<mods:number id="6AE26D686A46DFAE97D2A639A9C4946D">506</mods:number>
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<mods:start id="931E76E5D4A00B050606E1A9EAA2BF36">127</mods:start>
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<mods:url id="F75577089F6A416C7F814B9295B90E6E">http://dx.doi.org/10.3897/zookeys.506.9550</mods:url>
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<mods:classification id="45C866E52CF94C03C236FBF29087DA4A">journal article</mods:classification>
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<mods:identifier id="9A343BBCBEEE3FB6ABE0A7CEF076EA9F" type="DOI">http://dx.doi.org/10.3897/zookeys.506.9550</mods:identifier>
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<mods:identifier id="30C9DDCCF019F1362E3EC26C68E539FB" type="Pensoft-Pub">1313-2970-506-127</mods:identifier>
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<treatment id="E8E04E2F1C557A76B0F913613E6E4466" ID-GBIF-Taxon="152060209" LSID="urn:lsid:zoobank.org:act:6231C5E9-8812-419D-BDB9-34007C10B1F4" httpUri="http://treatment.plazi.org/id/E8E04E2F1C557A76B0F913613E6E4466" lastPageId="5" lastPageNumber="132" pageId="2" pageNumber="129">
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<subSubSection id="DFAC89CD45441DCF32ADA4FDF193D936" pageId="2" pageNumber="129" type="multiple">
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<paragraph id="EB2AE4D627715DE463FCC44272FCCB72" pageId="2" pageNumber="129">Taxon classification Animalia Opisthopora Megascolecidae</paragraph>
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</subSubSection>
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<subSubSection id="BE7DE196F728775DE7C7C0881B1C880B" pageId="2" pageNumber="129" type="nomenclature">
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<paragraph id="E77966D7ADC22603C0305DF6C277D957" pageId="2" pageNumber="129">
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<taxonomicName id="2956D5593D08AE6D1108BA3FDE5E2AAA" LSID="http://zoobank.org/6231C5E9-8812-419D-BDB9-34007C10B1F4" class="Clitellata" family="Megascolecidae" genus="Amynthas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amynthas nhonmontis" order="Crassiclitellata" pageId="2" pageNumber="129" phylum="Annelida" rank="species" species="nhonmontis">Amynthas nhonmontis</taxonomicName>
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<taxonomicNameLabel id="0159327A8D5A4DA33A0494D48B144E78" pageId="2" pageNumber="129">sp. n.</taxonomicNameLabel>
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Fig. 2
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</paragraph>
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</subSubSection>
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<subSubSection id="EC1F35314A3966382858F840F216C700" pageId="3" pageNumber="130" type="material examined">
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<paragraph id="D7FCD87F9AE3CDD0502EFAA582414332" pageId="3" pageNumber="130">
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<pageBreakToken id="BE508F73F6762378638836AA40D5C621" pageId="3" pageNumber="130" start="start">Material</pageBreakToken>
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examined.
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</paragraph>
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<paragraph id="C45D7858BAF9F0FDC8AFB2CA45C98132" pageId="3" pageNumber="130">
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Holotype. 1C (CTU.EW 023-h01) natural forest, Nhon mountain, (
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<geoCoordinate id="78003C0C092626A0EEA10786B1EB7520" direction="east" orientation="longitude" precision="1" value="104.93589">104°56'09.2"E</geoCoordinate>
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,
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<geoCoordinate id="119593DF9FEE352E703274A586F9E9A4" direction="north" orientation="latitude" precision="1" value="10.594333">10°35'39.6"N</geoCoordinate>
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), elevation of 56 m a.s.l., Tinh Bien district, An Giang province, Vietnam, 7 November 2010, coll. Nguyen Thanh Tung. Paratypes. 6C (CTU. EW023-p02) same data as for holotype.
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</paragraph>
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<caption id="DECA3767BF73356C2E51A0F1A10E33D5" pageId="3" pageNumber="130">
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<paragraph id="E4826CF8B5E80ECAB22043F57992F4AB" pageId="3" pageNumber="130">
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Figure 2.
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<taxonomicName id="60CBA48D5015A0E86677216999E16082" class="Clitellata" family="Megascolecidae" genus="Amynthas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amynthas nhonmontis" order="Crassiclitellata" pageId="3" pageNumber="130" phylum="Annelida" rank="species" species="nhonmontis">Amynthas nhonmontis</taxonomicName>
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sp. n., holotype. A Male region (mp = male pore; gm = genital markings) B Spermathecae, right side on intersegment 7/8 (dv = diverticulum, am = ampulla) C Prostate D Intestinal caecum E Transverse body section of male porophore in xviii (bw = body wall, pd = prostatic duct) F Transverse body section of genital markings in xvii (ag = accessory gland). Scale bars = 1 mm.
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</paragraph>
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</caption>
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</subSubSection>
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<subSubSection id="CB4CD5F357303BB6650D00B0C11087C9" pageId="3" pageNumber="130" type="diagnosis">
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<paragraph id="828C634DAD028EA61EF47C41BDA7A43B" pageId="3" pageNumber="130">Diagnosis.</paragraph>
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<paragraph id="25FD6031BD5FB3183148FAC8E41AA0C2" pageId="3" pageNumber="130">Medium-size worm. First dorsal pore in 10/11. Prostomium prolobous. Multiple spermathecal pores ventral in intersegments 5/6/7/8. Male pores in xviii, without copulatory pouches. Three pairs of genital markings present in xvii, xix and xx, rarely more or less than three pairs. Holandric. Intestinal caeca simple, from xxvii. Septa 8/9/10 absent, 10/11 thickened.</paragraph>
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</subSubSection>
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<subSubSection id="811C725DBBB3EAE8CDD015C98AE8C065" pageId="3" pageNumber="130" type="etymology">
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<paragraph id="2E680D0C81F57E549835BE8F5F5186AF" pageId="3" pageNumber="130">Etymology.</paragraph>
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<paragraph id="6A747C25E62DDB28104C94264BAAC447" pageId="3" pageNumber="130">
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<normalizedToken id="C12CC7F36CB3DB6AEDE952270D011897" originalValue="“nhonmontis”">"nhonmontis"</normalizedToken>
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, after locality.
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</paragraph>
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</subSubSection>
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<subSubSection id="02A05437B2E311F95A8EE4A4EB373012" lastPageId="4" lastPageNumber="131" pageId="3" pageNumber="130" type="description">
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<paragraph id="B4962455E78E5E785BC7D6CBD065D9F3" pageId="3" pageNumber="130">Description.</paragraph>
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<paragraph id="936A86B625EDA7D95CFA78F822870419" pageId="3" pageNumber="130">External characters: Body cylindrical, medium size. Length 103-106 mm, diameter 3.28-4.05 mm, segments 138-168, weight 0.91-1.65 g. Living specimens whitish pink while preserved specimens uniformly whitish brown; clitellum darkish brown.</paragraph>
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<paragraph id="477BED3A715E264CAC73B26B57FF2FE3" pageId="3" pageNumber="130">
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Prostomium prolobous. First dorsal pore in 10/11. Setae perichaetine; preclitellar setae stouter and thicker than postclitellar setae, 42-51 in viii, 31-36 in xxx, 5-8 between male porophores in xviii; setal distance aa=ab, zz=zy. Clitellum annular,
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<normalizedToken id="DCEB4B67A176ADBD67E147397EAD34A4" originalValue="xiv–xvi">xiv-xvi</normalizedToken>
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, without setae and dorsal pores. Female pore single, mid-ventral in xiv. Body wall thinned, especially segments after male region having very thin wall. Preclitellar segments obviously shorter than postclitellar ones.
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</paragraph>
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<paragraph id="3E05C6B7A51A9A89F11653E311DC6B58" pageId="3" pageNumber="130">Multiple spermathecal pores ventral in intersegments 5/6/7/8. No genital markings in spermathecal region. Male porophores flattened; male pores located in setal ring in xviii, without copulatory pouches. Ventral distance between male porophores about 0.3x body circumference. Genital markings usually three pairs in setal rings in xvii, xix and xx, rarely more or less than three pairs; genital markings arranged in longitudinal line with male pores.</paragraph>
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<paragraph id="1D5FDA1B4679C47624DAC48C5DF12C34" pageId="4" pageNumber="131">
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<pageBreakToken id="12F8F46C981705D66B7E0842E45B4585" pageId="4" pageNumber="131" start="start">Internal</pageBreakToken>
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characters: Septa 5/6/7/8 and 10/11 thickened, 8/9/10 absent, 11/12/13 very thin. Oesophageal gizzard within
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<normalizedToken id="DF204BE5BB9C89AB88B7A3854E7E4B7A" originalValue="viii–x">viii-x</normalizedToken>
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. Intestinal origin at xv; caeca small, simple within
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<normalizedToken id="30568CF9127A065C5BCB57C28459FCE3" originalValue="xxvii–xxvi">xxvii-xxvi</normalizedToken>
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or
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<normalizedToken id="5C4E8CF95EE47F1990F39BA425AF1245" originalValue="xxvii–½">xxvii-1/2</normalizedToken>
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xxv. Last hearts in xiii. Pharyngeal micronephridia well-developed on septa 4/5/6. Lymph glands lobulated from xxvii. Typhlosole simple, lamelliform.
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</paragraph>
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<paragraph id="D004468E12FA5E1D3A6E1C26C579C4E1" pageId="4" pageNumber="131">Spermathecae small, about 43-48 altogether in intersegments 5/6/7/8: 11-13 in 5/6, 15-17 in 6/7, and 17-18 in 7/8. Spermathecal ampulla very small, clavate, yellowish brown; duct extremely short. Diverticulum shorter and attached directly to duct of ampulla. No accessory glands.</paragraph>
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<paragraph id="49D90FE7AAA42C4286DBE68D2D61C42E" pageId="4" pageNumber="131">
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Holandric. Testis sacs separated. Seminal vesicles poorly developed in
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<normalizedToken id="ABB4C5A14D9D258A717AE4A9C80EA526" originalValue="xi–xii">xi-xii</normalizedToken>
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. Oviduct on septum 12/13 ventrally. Ovaries minute (not clearly found). Prostate glands poorly developed, largely lobulated, only within xviii; prostatic ducts undetected, covered body wall. Accessory glands concealed within body walls.
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</paragraph>
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</subSubSection>
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<subSubSection id="930572D5812063BAEF0D373BE1BC7CFD" pageId="4" pageNumber="131" type="dna">
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<paragraph id="62168FF3EFFD217A13E594F54F272A79" pageId="4" pageNumber="131">DNA.</paragraph>
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<paragraph id="1B1745380B3FCE129790D56EDAF486EB" pageId="4" pageNumber="131">COI barcode data (partial) is for holotype uploaded to GenBank with accession number KR676559.</paragraph>
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</subSubSection>
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<subSubSection id="70C02DEA034739D77676BC7B7E71F1D5" pageId="4" pageNumber="131" type="habitats and ecology">
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<paragraph id="F25BC05F0AA7602CAF531FA5F0998B9A" pageId="4" pageNumber="131">Habitats and ecology.</paragraph>
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<paragraph id="1B59A698A4F5BED16F8F4B0BE338D3BE" pageId="4" pageNumber="131">This species has been found only in Nhon mountain (Tinh Bien district) in An Giang province. Adult specimens were only collected during the rainy season (from October to March) in southern Vietnam and found in heavy clays at the foothill of Nhon mountain.</paragraph>
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</subSubSection>
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<subSubSection id="B9A2AEAB838A6E5038BEA49B188B96BD" pageId="5" pageNumber="132" type="remarks">
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<paragraph id="BF96F00A5537687CB461CA97564E3870" pageId="5" pageNumber="132">
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<pageBreakToken id="D6BC02912DEEA9FF2ACFAA7C7B3DA80A" pageId="5" pageNumber="132" start="start">Remarks</pageBreakToken>
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.
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</paragraph>
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<paragraph id="483164726B601C04D25C4D2F3C0F8AA5" pageId="5" pageNumber="132">
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<taxonomicName id="0FBE6BF33B8F72EC6BA855844CDE696B" class="Clitellata" family="Megascolecidae" genus="Amynthas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amynthas nhonmontis" order="Crassiclitellata" pageId="5" pageNumber="132" phylum="Annelida" rank="species" species="nhonmontis">Amynthas nhonmontis</taxonomicName>
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sp. n. differs from other
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<taxonomicName id="2A24DFA351EA70997BEBE7FC95A1E842" class="Clitellata" family="Megascolecidae" genus="Amynthas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amynthas" order="Crassiclitellata" pageId="5" pageNumber="132" phylum="Annelida" rank="genus">Amynthas</taxonomicName>
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species in having multiple spermathecal pores ventral in intersegments 5/6/7/8 and three pairs of genital markings in xvii, xix and xx. The new species is superficially similar to
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<taxonomicName id="0B0F7718AD6435B395E33FD8D1C74D14" class="Clitellata" family="Megascolecidae" genus="Polypheretima" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Polypheretima elongata" order="Crassiclitellata" pageId="5" pageNumber="132" phylum="Annelida" rank="species" species="elongata">Polypheretima elongata</taxonomicName>
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(Perrier, 1872) due to external morphology: body cylindrical, multiple spermathecae per segment, presence and arrangement of genital markings near male pores. However, it is clearly distinguished from
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<taxonomicName id="6A439BAA28E8C0A54108FAFA9C48DCCF" class="Clitellata" family="Megascolecidae" genus="Polypheretima" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Polypheretima elongata" order="Crassiclitellata" pageId="5" pageNumber="132" phylum="Annelida" rank="species" species="elongata">Polypheretima elongata</taxonomicName>
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by presence of intestinal caeca, three spermathecal segments, absence of copulatory pouches.
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</paragraph>
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<paragraph id="A368FC35ED057858240FDF393C86364B" pageId="5" pageNumber="132">
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Its DNA barcode is definitive for the new species (nearest BLAST result is
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<taxonomicName id="F9DE076F64B126CA862E7FFF1C6E7E94" class="Clitellata" family="Megascolecidae" genus="Amynthas" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Amynthas morrisi" order="Crassiclitellata" pageId="5" pageNumber="132" phylum="Annelida" rank="species" species="morrisi">Amynthas morrisi</taxonomicName>
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at 87%).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |