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118 lines
16 KiB
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<document id="B334F33437C0F3234E5E43450DD194FA" ID-DOI="http://dx.doi.org/10.3897/zookeys.247.3698" ID-GBIF-Dataset="cf0233a4-ecc2-43da-8674-8f01d38cd9a0" ID-PMC="PMC3520137" ID-Pensoft-Pub="1313-2970-247-1" ID-PubMed="23275753" ModsDocAuthor="" ModsDocDate="2012" ModsDocID="1313-2970-247-1" ModsDocOrigin="ZooKeys 247" ModsDocTitle="Four new species of splanchnotrophid copepods (Poecilostomatoida) parasitic on doridacean nudibranchs (Gastropoda, Opistobranchia) from Japan, with proposition of one new genus" checkinTime="1451247889117" checkinUser="pensoft" docAuthor="Uyeno, Daisuke & Nagasawa, Kazuya" docDate="2012" docId="ED38478E8B5B051F0780010F776D6D17" docLanguage="en" docName="ZooKeys 247: 1-29" docOrigin="ZooKeys 247" docSource="http://dx.doi.org/10.3897/zookeys.247.3698" docTitle="Majimun Uyeno & Nagasawa, 2012, gen. n." docType="treatment" docVersion="5" lastPageNumber="9" masterDocId="89687F48FFA9FFA0FFE3BB605F3EFFB2" masterDocTitle="Four new species of splanchnotrophid copepods (Poecilostomatoida) parasitic on doridacean nudibranchs (Gastropoda, Opistobranchia) from Japan, with proposition of one new genus" masterLastPageNumber="29" masterPageNumber="1" pageNumber="8" updateTime="1732707816499" updateUser="ExternalLinkService">
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<mods:mods id="DEB8E45E703ABED5197A6A0A103FC5D5" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="0961CE38F396AE21AF1EB7806BA1CC6D">
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<mods:title id="8AB1AAD082FA7D6B78674F6D0DF11144">Four new species of splanchnotrophid copepods (Poecilostomatoida) parasitic on doridacean nudibranchs (Gastropoda, Opistobranchia) from Japan, with proposition of one new genus</mods:title>
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<mods:name id="57B4D879C1DF1490C233D7A0B0372C9B" type="personal">
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<mods:namePart id="57AC7E37250B1E623C90CEAEF699DFB4">Uyeno, Daisuke</mods:namePart>
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<mods:name id="CEE87CC7EF57D61AC7317EC6EC178F86" type="personal">
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<mods:roleTerm id="74D54670FC2B6C86184AFA467000713E">Author</mods:roleTerm>
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<mods:namePart id="A5F0446A478E4E615E0C3B522486A32F">Nagasawa, Kazuya</mods:namePart>
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<mods:typeOfResource id="9E1CDF9233C0D4878A09170C89137BA2">text</mods:typeOfResource>
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<mods:titleInfo id="CE2E08AE51531FA2ED0318B319D2DE76">
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<mods:title id="E99D4BECE23958087B3EDA590A6F73C6">ZooKeys</mods:title>
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</mods:titleInfo>
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<mods:part id="037564C4E549E7B58C382209896F9BCD">
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<mods:date id="7B522179CA74C4F62315F7319BBADF4D">2012</mods:date>
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<mods:detail id="98B33D856C35E85C9CB9245C10B99F0F" type="volume">
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<mods:number id="1DD08B47807111E729C851088ED92991">247</mods:number>
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</mods:detail>
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<mods:extent id="78E601C465F9FFB02416783A6573DC91" unit="page">
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<mods:start id="4BE46C8E34D96C2C44801065EC8FB033">1</mods:start>
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<mods:end id="4EAA730FBE0F13538E8B64A32511C6C0">29</mods:end>
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<mods:url id="9823B78215F496D36DEF19B29FCCA5E1">http://dx.doi.org/10.3897/zookeys.247.3698</mods:url>
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<mods:classification id="DB53CEB73249C737B24212B7199D9CA8">journal article</mods:classification>
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<mods:identifier id="C86FC4D2C2B9B0611A70E3B5E52E9F65" type="DOI">http://dx.doi.org/10.3897/zookeys.247.3698</mods:identifier>
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<mods:identifier id="E63E017A389DC66CABA2095936398524" type="Pensoft-Pub">1313-2970-247-1</mods:identifier>
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</mods:mods>
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<treatment id="ED38478E8B5B051F0780010F776D6D17" ID-GBIF-Taxon="152039078" LSID="urn:lsid:zoobank.org:act:844ACF3B-5676-4961-A013-4731BE2023FB" httpUri="http://treatment.plazi.org/id/ED38478E8B5B051F0780010F776D6D17" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8" scope_class="Gastropoda" scope_subOrder="Poecilostomatoida">
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<subSubSection id="504EE6A82BE4BDFDBBDA2857F6334369" pageId="7" pageNumber="8" type="nomenclature">
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<paragraph id="1BF69B02CC04896B56CBB6FFA796EC19" pageId="7" pageNumber="8">
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<taxonomicName id="7484AAA2D284BF688DA16890BB4D5AAC" ID-CoL="7PNBB" LSID="urn:lsid:zoobank.org:act:844ACF3B-5676-4961-A013-4731BE2023FB" class="Copepoda" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun" order="Cyclopoida" pageId="7" pageNumber="8" phylum="Arthropoda" rank="genus">Majimun</taxonomicName>
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<taxonomicNameLabel id="8655D6EB17515C43692B0D1E9A2F2AA3" pageId="7" pageNumber="8">gen. n.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="1083C1A2799B1537CEA3ECFB61D22B49" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8" type="diagnosis of adult female">
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<paragraph id="7667759746658AFDA5799D72E3116DBE" pageId="7" pageNumber="8">Diagnosis of adult female.</paragraph>
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<paragraph id="D58F6A697955DBF59EF685AF4FBCAFFF" pageId="7" pageNumber="8">Body elongate, comprising long prosome with 3 pairs of lateral processes and 3-segmented urosome. Prosome composed of anterior region (cephalosome), middle region (including first and second pedigerous somites), and posterior region (including third and fourth pedigerous somites). Cephalosome elongate. Middle region elongate, about twice as long as wide, without posterolateral processes. Posterior region elongate. Lateral processes long and slender. Urosome small; genital double somite cylindrical, narrower at mid region, bearing paired apertures with slightly prominent posterolateral corners; opercula bearing small shield-like structure with 2 spiniform processes. Caudal rami small, bearing 6 setae; apical seta styliform.</paragraph>
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<paragraph id="D6067FEE6B01D5931431C0F31476601A" pageId="7" pageNumber="8">Antennule 3-segmented bearing spiniform elements; proximal segment subdivided into basal part with 4 spines and distal part with 3 elements; middle segment bearing 3 elements; terminal segment bearing 11 elements. Antenna 3-segmented; coxo-basis broad, bearing 1 medial spiniform element; proximal segment of endopod bearing 1 inner spiniform element; terminal segment of endopod drawn out into strong apical claw, with 4 and 1 elements along outer and inner margins, respectively. Labrum bilobate, bearing paired extra lobes and small central, conical protrusion. Mandible spatulate, drawn out into blade with 3 dentiform processes. Maxillule not observed. Paragnath bulbous lobe. Maxilla 2-segmented; syncoxa unarmed; allobasis tapering into curved process, with seta. Maxilliped absent. Labium bearing single pointed process, small paired protrusions ornamented with spinules, and posterolateral patches of spinules.</paragraph>
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<paragraph id="CCCAAB06045827B444C3A33671FC19E2" lastPageId="8" lastPageNumber="9" pageId="7" pageNumber="8">
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Legs 1 and 2 composed of protopod largely incorporated into ventral wall of prosome, with exopodal and endopodal lobes; protopod bearing outer basal seta, small
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<pageBreakToken id="A3F1C148DEFE5005DDA3E3172DDA4B44" pageId="8" pageNumber="9" start="start">protrusion</pageBreakToken>
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at base of endopodal lobe of leg 1; exopodal lobe indistinctly 2-segmented, tapering into spiniform apical process; endopodal lobe cylindrical bearing apical process. Leg 3 represented by conical process with apical seta.
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</paragraph>
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<paragraph id="5D88C07C779E6A773D4366251F98CC29" pageId="8" pageNumber="9">Egg sacs cylindrical and spiral.</paragraph>
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</subSubSection>
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<subSubSection id="46222EEAD73153D429D5EC7B9F5976ED" pageId="8" pageNumber="9" type="diagnosis of adult male">
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<paragraph id="2C1D71855835CB5CEECC18AA1AEE0E6F" pageId="8" pageNumber="9">Diagnosis of adult male.</paragraph>
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<paragraph id="309934DC6CDA807C168D9101565CFEAA" pageId="8" pageNumber="9">Body cyclopiform, composed of cephalothorax and 5 cylindrical somites. Cephalothorax large, bulbous, incorporating first and second pedigerous somites, bearing transverse constriction posterior to mouth parts and paired posterolateral outgrowth. Genital somite bearing paired apertures; opercula unarmed. Caudal rami conical, about as long as wide, bearing 6 setae; apical seta styliform. No marked sexual dimorphism in antennule and mouth parts. Shape of antenna as in female except terminal endopodal segment bearing 5 elements; inner margin bearing 2 of 5 elements. Mandible elongate, drawn out into spatulate apical blade with 3 dentiform processes.</paragraph>
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<paragraph id="072545EE8B273999355837201CD9C4ED" pageId="8" pageNumber="9">Legs 1 and 2 composed of round protopod with outer basal seta, indistinctly 2-segmented exopodal lobe drawn out into pointed process, and non-segmented endopodal segment with apical small process. Leg 3 represented by conical process with apical seta.</paragraph>
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</subSubSection>
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<subSubSection id="B92377C5A40A80EB7A5CB2E7673E0CA5" pageId="8" pageNumber="9" type="type and only species">
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<paragraph id="41D472EECA678473FC0FCDB03CE3CDB3" pageId="8" pageNumber="9">Type and only species.</paragraph>
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<paragraph id="98298BC3EF1015FEF4A65AE4D3FCF960" pageId="8" pageNumber="9">
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<taxonomicName id="FB3AFC84D6BAF83D63D3AAE3B66582E1" class="Copepoda" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun shirakawai" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="species" species="shirakawai">Majimun shirakawai</taxonomicName>
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sp. n. by the present designation.
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</paragraph>
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</subSubSection>
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<subSubSection id="9677204AAEE1E5F8CAACC53EEFDCD06B" pageId="8" pageNumber="9" type="etymology">
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<paragraph id="D28F8BCCE6A0004CF6CAE7448AB9E1E4" pageId="8" pageNumber="9">Etymology.</paragraph>
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<paragraph id="E80620F830829101119A03E7E015BA1D" pageId="8" pageNumber="9">
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The generic name,
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<normalizedToken id="E91CED3CE99D0AB9DFD2D2A5B3F15682" originalValue="“majimun”">"majimun"</normalizedToken>
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, refers to a dialect in Okinawa, which means demons. The gender is neuter.
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</paragraph>
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</subSubSection>
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<subSubSection id="88817A5DD23F4DF668E541F28062D7AD" pageId="8" pageNumber="9" type="remarks">
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<paragraph id="B3C74B71A7748A9BA58AB595B97ECA51" pageId="8" pageNumber="9">Remarks.</paragraph>
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<paragraph id="0D7692A27C4C0488656DD242FF3431EE" pageId="8" pageNumber="9">
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Females of
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<taxonomicName id="486BBA3DA51D381D6D9651DFBB34B41D" class="Copepoda" family="Splanchnotrophidae" genus="Lomanoticola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Lomanoticola" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Lomanoticola</taxonomicName>
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and
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<taxonomicName id="7CDE0531F7F76A42E98B8E52497EB551" class="Copepoda" family="Splanchnotrophidae" genus="Splanchnotrophus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Splanchnotrophus" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Splanchnotrophus</taxonomicName>
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differ from
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<taxonomicName id="7E31E49A8D2FD42F6CDA8A542644E28E" class="Copepoda" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Majimun</taxonomicName>
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gen. n. in having a 2-segmented urosome comprising the genital double somite and the anal somite (vs. a 3-segmented urosome and the genital double somite separated from the abdomen) (
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<bibRefCitation id="8576132AEBD29E52ABD426A79238D8B3" author="Huys, R" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="106 - 156" title="Splanchnotrophid systematics: a case of polyphyly and taxonomic myopia." url="10.1651/0278-0372(2001)021[0106:SSACOP]2.0.CO;2" volume="21" year="2001">Huys 2001</bibRefCitation>
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; present study). Females of
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<taxonomicName id="C5AA935E871897432085409532587660" class="Copepoda" family="Splanchnotrophidae" genus="Ismaila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ismaila" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ismaila</taxonomicName>
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spp. share a 3-segmented urosome, which includes 1 postgenital somite (vs. 2 somites). There are also differences in the following female characters between
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<taxonomicName id="BE9AED8FB1BFD3CD10D2B6C87027A561" class="Copepoda" family="Splanchnotrophidae" genus="Ismaila" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ismaila" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ismaila</taxonomicName>
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and the new genus: the antennule is 2-segmented (vs. 3-segmented); the mandible consists of a small rod tipped with a short tooth and a slender spine (vs. drawn out into a blade with dentiform processes); the paragnath is absent (vs. present); the maxillule is made of a lobe with 2 setae (vs. absent); and the maxilla has the allobasis drawn out into a multipinnate endite with 2 accessory elements (vs. with the allobasis drawn out into a curved process with 1 seta)(see
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<bibRefCitation id="638A4ACD6C67A50EAADE91739F5FA8BB" author="Ho, JS" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="130 - 136" title="Ismaila occulta, a new species of poecilostomatoid copepod parasitic in a dendronotid nudibranch from California." url="10.2307/1548210" volume="1" year="1981">Ho 1981</bibRefCitation>
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;
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<bibRefCitation id="6A86499BB3D691A72C8ECAD32E0E3C4A" author="Haumayr, U" journalOrPublisher="Spixiana" pageId="13" pageNumber="14" pagination="1 - 33" title="Revision of the endoparasitic copepod genus Ismaila Bergh, 1867, with description of eight new species (Copepoda, Poecilostomatoida, Splanchnotrophidae)." volume="26" year="2003">
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Haumayr and
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<normalizedToken id="D9F117645EB123506D3D484C857A042E" originalValue="Schrödl">Schroedl</normalizedToken>
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2003
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</bibRefCitation>
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).
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<taxonomicName id="596DA97234383F034B527503643512EC" class="Copepoda" family="Splanchnotrophidae" genus="Majimun" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Majimun" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Majimun</taxonomicName>
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gen. n. does not show distinct sexual dimorphism in the antennule, the antenna, and the mouth parts. The new genus also possesses a 3-segmented antennule, the mandible, and the paragnath in both sexes and 2 postgenital somites in females. These characters are not shared with
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<taxonomicName id="25A82A21865077B051183A1D77D08045" class="Copepoda" family="Splanchnotrophidae" genus="Arthurius" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Arthurius" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Arthurius</taxonomicName>
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(see
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<bibRefCitation id="7BA13BFD5B9DBBCDA37A73BCFA535B1B" author="Huys, R" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="106 - 156" title="Splanchnotrophid systematics: a case of polyphyly and taxonomic myopia." url="10.1651/0278-0372(2001)021[0106:SSACOP]2.0.CO;2" volume="21" year="2001">Huys 2001</bibRefCitation>
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). All of these characters are shared with
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<taxonomicName id="02E35DE33E74088DAA1656C6E4A2653F" class="Copepoda" family="Splanchnotrophidae" genus="Ceratosomicola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ceratosomicola" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ceratosomicola</taxonomicName>
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, except the 3-segmented antennule. However,
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<taxonomicName id="33F34617CB0BC3CA4927F092C673C60C" class="Copepoda" family="Splanchnotrophidae" genus="Ceratosomicola" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Ceratosomicola" order="Cyclopoida" pageId="8" pageNumber="9" phylum="Arthropoda" rank="genus">Ceratosomicola</taxonomicName>
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differs from the new genus by having the following characters in both sexes: the antennule is composed of 4 distinct segments (vs. 3 segments); the antenna is conical (vs. elongate); the mandible is covered with numerous spinules (vs. spatulate bearing a blade with dentiform processes around apex); and the maxilla possesses a lanceolate process without armature (vs. with process and 1 seta) (see
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<bibRefCitation id="94DF32EC867DF8B16549F259DE2E647C" author="Huys, R" journalOrPublisher="Journal of Crustacean Biology" pageId="13" pageNumber="14" pagination="106 - 156" title="Splanchnotrophid systematics: a case of polyphyly and taxonomic myopia." url="10.1651/0278-0372(2001)021[0106:SSACOP]2.0.CO;2" volume="21" year="2001">Huys 2001</bibRefCitation>
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; present study).
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</paragraph>
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</subSubSection>
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</treatment>
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</document> |