304 lines
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304 lines
50 KiB
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<document ID-CLB-Dataset="121971" ID-DOI="http://dx.doi.org/10.3897/subtbiol.44.86914" ID-GBIF-Dataset="6dcce6d8-6a0c-4afd-bab2-ca640300ae07" ID-Pensoft-Pub="1314-2615-44-21" ID-Pensoft-UUID="27097103DFA85FF0954CAADE72F24005" ID-ZooBank="1865B08110724900BFC7563C0D29DA7D" ModsDocID="1314-2615-44-21" checkinTime="1660625097676" checkinUser="pensoft" docAuthor="Shintani, Aki, Lee, Chi-Woo & Tomikawa, Ko" docDate="2022" docId="B90E856D443B56B48F5890009DA07C2C" docLanguage="en" docName="SubterBiol 44: 21-50" docOrigin="Subterranean Biology 44" docPubDate="2022-08-15" docSource="http://dx.doi.org/10.3897/subtbiol.44.86914" docTitle="Eoniphargus iwataorum Shintani & Lee & Tomikawa 2022, sp. nov." docType="treatment" docUuid="4234A07E-026A-4DB1-A2E8-2DE845E6295E" docUuidSource="ZooBank" docVersion="5" id="27097103DFA85FF0954CAADE72F24005" lastPageNumber="21" masterDocId="27097103DFA85FF0954CAADE72F24005" masterDocTitle="Two new species add to the diversity of Eoniphargus in subterranean waters of Japan, with molecular phylogeny of the family Mesogammaridae (Crustacea, Amphipoda)" masterLastPageNumber="50" masterPageNumber="21" pageNumber="21" updateTime="1732798697937" updateUser="ExternalLinkService">
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<mods:titleInfo id="8DABA7F41781409E68D3641B704A673A">
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<mods:title id="3425C6BDD89C45F8E4D62B2F6BF15AD8">Two new species add to the diversity of Eoniphargus in subterranean waters of Japan, with molecular phylogeny of the family Mesogammaridae (Crustacea, Amphipoda)</mods:title>
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<mods:name id="FF6AC05A3CCCFD977D0DA4911AC0CE4D" type="personal">
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<mods:roleTerm id="5DEC3EED7737B5C73E031A98EC5A94F8">Author</mods:roleTerm>
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<mods:namePart id="023E632D4FBF2DA953105343B02DCF14">Shintani, Aki</mods:namePart>
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<mods:affiliation id="8EEE796C6F70AFD5D294AFBA9CCDE01E">Graduate School of Humanities and Social Sciences, Hiroshima University, 1 - 1 - 1 Kagamiyama, Higashihiroshima, Hiroshima, 739 - 8524, Japan</mods:affiliation>
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</mods:name>
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<mods:name id="13837F015E7898B12B4511BF1C300E56" type="personal">
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<mods:namePart id="99A9E0559782C41A83E9EFB097C964C3">Lee, Chi-Woo</mods:namePart>
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<mods:nameIdentifier id="CEFCC6669E8A132E51544BAE5A7EBE49" type="ORCID">https://orcid.org/0000-0002-0763-4271</mods:nameIdentifier>
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<mods:affiliation id="6AF2C07AE69EA35B3548F56A76E9CB40">Nakdonggang National Institute of Biological Resources, 137, Donam 2 - gil, Sangju-si, Gyeongsangbuk-do, 37242, Republic of Korea</mods:affiliation>
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<mods:name id="F8771CA1D06329AACCA410E99F8DED5E" type="personal">
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<mods:namePart id="D6EE841AA3F091D1F6CC1390D56D5357">Tomikawa, Ko</mods:namePart>
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<mods:affiliation id="B01914CFB1C19967F261559C59FB5723">Graduate School of Humanities and Social Sciences, Hiroshima University, 1 - 1 - 1 Kagamiyama, Higashihiroshima, Hiroshima, 739 - 8524, Japan</mods:affiliation>
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<mods:nameIdentifier id="447D539DA95DD7EA6D5A9C8F9C12ACDA" type="email">tomikawa@hiroshima-u.ac.jp</mods:nameIdentifier>
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<mods:typeOfResource id="B3F25E573698BBB36B7E9F1732699053">text</mods:typeOfResource>
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<mods:title id="32BB8CC5BF7C962BD0ED07102AC0CE04">Subterranean Biology</mods:title>
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<mods:part id="66DCDCBC9E227910A35B39E1EFBE03C2">
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<mods:date id="C56B4A87443F07614B63715426CADB1A">2022</mods:date>
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<mods:number id="945CC56DBC38BC129D5D86E659E574E6">2022-08-15</mods:number>
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<mods:number id="9FC02809A56F5453CBC562501118276F">44</mods:number>
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<mods:start id="F53A17B718456C4EE9BEB7F1AC4C4071">21</mods:start>
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<mods:end id="89FD843E4784061891957B731EEFE108">50</mods:end>
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<treatment id="B90E856D443B56B48F5890009DA07C2C" ID-GBIF-Taxon="199350555" LSID="urn:lsid:zoobank.org:act:4234A07E-026A-4DB1-A2E8-2DE845E6295E" httpUri="http://treatment.plazi.org/id/B90E856D443B56B48F5890009DA07C2C" lastPageNumber="21" pageId="0" pageNumber="21" scope_family="Mesogammaridae" scope_order="Amphipoda">
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<subSubSection id="12B1155190DC8B08491400863003909A" pageId="0" pageNumber="21" type="nomenclature">
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<paragraph id="2CCDAF479C0F76FB581A19D765334C0D" pageId="0" pageNumber="21">
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<taxonomicName id="3D7B176393FC1D4434B39CDF6859C2AD" ID-CoL="9GDMR" LSID="https://zoobank.org/4234A07E-026A-4DB1-A2E8-2DE845E6295E" authority="Shintani & Lee & Tomikawa, 2022" authorityName="Shintani & Lee & Tomikawa" authorityYear="2022" class="Malacostraca" family="Mesogammaridae" genus="Eoniphargus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eoniphargus iwataorum" order="Amphipoda" pageId="0" pageNumber="21" phylum="Arthropoda" rank="species" species="iwataorum" status="sp. nov.">Eoniphargus iwataorum</taxonomicName>
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<taxonomicNameLabel id="288B0A94F151EAF68D2B26F689994885" pageId="0" pageNumber="21">sp. nov.</taxonomicNameLabel>
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</paragraph>
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</subSubSection>
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<subSubSection id="D999864398C91E59AA8FA45C03501770" pageId="0" pageNumber="21" type="description">
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<paragraph id="75CC921C0AB104340AFC38FC6FFEB58C" pageId="0" pageNumber="21">
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<figureCitation id="767FAE466105FB3459FCF84A563BE472" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">Figs 6</figureCitation>
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<figureCitation id="5FAFDDF9865748776D540CB96A6D1217" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">, 7</figureCitation>
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<figureCitation id="6C088DE324A1B95D22D5039201601A80" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">, 8 New Japanese name: Iwata-chikayokoebi</figureCitation>
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</paragraph>
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</subSubSection>
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<subSubSection id="78304272E4FAC7ACA71D58170612F783" pageId="0" pageNumber="21" type="type material">
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<paragraph id="3844B89C5F0FF85AE3DE9B8D792B0BF6" pageId="0" pageNumber="21">Type material.</paragraph>
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<paragraph id="9FBBE03916B6BBB6129F4827BE3E6F74" pageId="0" pageNumber="21">
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<emphasis id="149D9C25E1525C7E4053D15FE675A40A" bold="true" italics="true" pageId="0" pageNumber="21">Holotype</emphasis>
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: ♀ 5.6 mm (NSMT-Cr 30782), Sabi River (
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<geoCoordinate id="6248FFF8B21A28BCC739A6E569742051" degrees="36.898181" direction="north" orientation="latitude" precision="1" value="36.898182">36.898181°N</geoCoordinate>
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,
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<geoCoordinate id="5218969EDE7C24C63BBFF228D8F3C67F" degrees="140.012153" direction="east" orientation="longitude" precision="1" value="140.01215">140.012153°E</geoCoordinate>
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), Imaizumi, Ohtawara, Tochigi Prefecture, Japan, collected by Y. Iwata on 27 January 2019.
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<emphasis id="CDD1F6C2AB0BFC9048AA076C47F4F780" bold="true" italics="true" pageId="0" pageNumber="21">Paratype</emphasis>
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: ♀ 5.3 mm (NSMT-Cr 30783; G1751), ♀ 6.0 mm (NSMT-Cr 30784), data same as for the holotype.
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</paragraph>
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</subSubSection>
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<subSubSection id="5A6A35E02BC481EE90D87940490EA187" pageId="0" pageNumber="21" type="diagnosis">
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<paragraph id="EB28259191E5001B288A4840E21704AE" pageId="0" pageNumber="21">Diagnosis.</paragraph>
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<paragraph id="64DB566526EEF353FE37315643F22F41" pageId="0" pageNumber="21">Urosomite 3 without dorsal setae. Epimeral plates 2-3 each with ventral robust seta. Peduncular article 1 of antenna 1 with robust seta on posterodistal corner. Antenna 2 with peduncular article 2 gland cone not exceeding end of article 3. Mandible with 5-dentate left incisor; left lacinia mobilis 4-dentate, right one bifid with many teeth. Inner plate of maxilla 1 with eight plumose setae. Inner plate of maxilla 2 with seven facial seta in oblique row. Peduncle of pleopod 3 with seta. Uropod 1 with peduncle bearing basofacial robust setae. Uropod 3 with inner ramus 0.25 times as long as outer ramus; outer ramus 2-ariticulate, with plumose setae on medial margin. Telson almost as long as width, cleft for 67% of length.</paragraph>
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</subSubSection>
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<subSubSection id="B2C9ECF9F26B6889A3B89529B734D154" pageId="0" pageNumber="21" type="etymology">
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<paragraph id="D8A77647E3F5FDD396377799E4A08CE3" pageId="0" pageNumber="21">Etymology.</paragraph>
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<paragraph id="0A60DC960B7877AE00F2810FCC8D22EF" pageId="0" pageNumber="21">The specific epithet was derived from the names of Mr. Yasuyuki Iwata and Mr. Tomofumi Iwata, who collected the specimens of this new species.</paragraph>
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</subSubSection>
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<subSubSection id="19CF1B80401A5EDE4750C4D4A15E299A" pageId="0" pageNumber="21" type="description">
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<paragraph id="AE7E7E14D877A552B20076BA68548DD8" pageId="0" pageNumber="21">Description.</paragraph>
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<paragraph id="64C5C2720210FAAA981B0E6EA343316B" pageId="0" pageNumber="21">
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<emphasis id="82DDD66E59192B49C285F33B4CFE8C28" bold="true" pageId="0" pageNumber="21">Female holotype, NSMT-Cr 30782.</emphasis>
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Head (Fig.
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<figureCitation id="6BCB01089D1A9F019504AF23217055CD" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6A</figureCitation>
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) as long as pereonites 1 and 2 combined; eyes absent; inferior antennal sinus distinct with rounded angle. Dorsal margins of pleonites 1-3 (Fig.
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<figureCitation id="593834D4C202CED9BDD2D48781C0E3F6" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6B-D</figureCitation>
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) each with four setae. Posterodistal corners of epimeral plates 1-3 (Fig.
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<figureCitation id="2E90F79C28955371C98D35C6440115D2" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6E-G</figureCitation>
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) weakly produced; ventral margin of epimeral plate 1 without setae, epimeral plates 2 and 3 each with ventral robust seta; posterior margins of epimeral plates 1-3 each with two setae. Dorsal margin of urosomite 1 (Fig.
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<figureCitation id="68FFC3D17C71FFFAFEDACA9965365DC1" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6H</figureCitation>
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) with slender setae; urosomite 2 (Fig.
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<figureCitation id="492F08A190F557E05223A302E3B5B700" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6I</figureCitation>
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) with dorsal robust setae; urosomite 3 (Fig.
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<figureCitation id="54D9F5BA99D78F7C172F941BFF3F1BF3" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6J</figureCitation>
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) without dorsal setae.
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</paragraph>
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<caption id="DB00255DA0687D153A1AEF8CC717248F" doi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21" start="Figure 6" startId="F6">
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<paragraph id="3780101647383287538FDF24BB415FCC" pageId="0" pageNumber="21">
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<emphasis id="49B593B1F3D16E5164F170E4DF5F04B8" bold="true" pageId="0" pageNumber="21">Figure 6.</emphasis>
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<taxonomicName id="4757A4DCF200EA95B959BE37928F1914" authorityName="Shintani & Lee & Tomikawa" authorityYear="2022" class="Malacostraca" family="Mesogammaridae" genus="Eoniphargus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eoniphargus iwataorum" order="Amphipoda" pageId="0" pageNumber="21" phylum="Arthropoda" rank="species" species="iwataorum">
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<emphasis id="8D6B03F4D5989E4DD8C569EE5294EE02" italics="true" pageId="0" pageNumber="21">Eoniphargus iwataorum</emphasis>
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</taxonomicName>
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sp. nov., female holotype (NSMT-Cr 30782)
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<emphasis id="917D7BAC36A61EB72BEE66CE0909FA04" bold="true" pageId="0" pageNumber="21">A</emphasis>
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head, lateral view
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<emphasis id="35B9A0229579E86BE192528EF56D1D6A" bold="true" pageId="0" pageNumber="21">B-D</emphasis>
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dorsal margins of pleonites 1-3, dorsal views
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<emphasis id="14F6F2BACF9BE4FB68B16136C71A8EBF" bold="true" pageId="0" pageNumber="21">E-G</emphasis>
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epimeral plates 1-3, lateral views
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<emphasis id="D17345ECDFD8E422DB6B092BE88DEBD6" bold="true" pageId="0" pageNumber="21">H-J</emphasis>
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dorsal margins of urosomites 1-3, dorsal views
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<emphasis id="1F7C5D5D480B791D11A32659FDF94848" bold="true" pageId="0" pageNumber="21">K</emphasis>
|
|
antenna 1 (some flagellar articles are omitted), lateral view
|
|
<emphasis id="08C6A0EA07DB3DE1448CB248EB133196" bold="true" pageId="0" pageNumber="21">L</emphasis>
|
|
antenna 2 (some flagellar articles are omitted), lateral view
|
|
<emphasis id="305AF496D5A692F6777E670381D32332" bold="true" pageId="0" pageNumber="21">M</emphasis>
|
|
upper lip, anterior view
|
|
<emphasis id="07D01E3EE6FE0E2E8A8730BB54395CCC" bold="true" pageId="0" pageNumber="21">N</emphasis>
|
|
right mandible, medial view
|
|
<emphasis id="680AAA2319662C80307D1E699A5A5351" bold="true" pageId="0" pageNumber="21">O</emphasis>
|
|
incisor and lacinia mobilis of right mandible, medial view
|
|
<emphasis id="68B28F94F73445BDBF7A95C73D44C36B" bold="true" pageId="0" pageNumber="21">P</emphasis>
|
|
incisor and lacinia mobilis of left mandible, lateral view
|
|
<emphasis id="A32EEF52E7C43300F811EB72DE7CC280" bold="true" pageId="0" pageNumber="21">Q</emphasis>
|
|
lower lip, anterior view
|
|
<emphasis id="46CF257AD56D92E96CA72408232F0970" bold="true" pageId="0" pageNumber="21">R</emphasis>
|
|
maxilla 1, dorsal view
|
|
<emphasis id="855E1110B6D3191B27AA8F88A1481A95" bold="true" pageId="0" pageNumber="21">S</emphasis>
|
|
apical robust setae on outer plate of maxilla 1, dorsal view
|
|
<emphasis id="E865E371B492E0958CAE24618C0ED2C9" bold="true" pageId="0" pageNumber="21">T</emphasis>
|
|
maxilla 2, dorsal view.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph id="10C4024717594AC23594FBE2A5066B73" pageId="0" pageNumber="21">
|
|
Antenna 1 (Fig.
|
|
<figureCitation id="3B7686CEC5F38F72BA5015F40521F1D8" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6K</figureCitation>
|
|
) length 0.25 times as long as body; length ratio of peduncular articles 1-3 in 1.0: 0.8: 0.4; posterodistal corner of peduncular article 1 with robust seta; accessory flagellum 4-articulate; primary flagellum 27-articulate. Antenna 2 (Fig.
|
|
<figureCitation id="A798AD79DDD6C40DE6EA9663098BBE41" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6L</figureCitation>
|
|
) length 0.7 times as long as antenna 1; peduncular article 4 slightly shorter than article 5; flagellum 22-articulate; calceoli absent.
|
|
</paragraph>
|
|
<paragraph id="A30D1953DC2CCAABE0D002150E9B839E" pageId="0" pageNumber="21">
|
|
Upper lip (Fig.
|
|
<figureCitation id="9463269FE0834BF5219C9EECAAB526C9" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6M</figureCitation>
|
|
) with rounded apical margin bearing fine setae. Mandibles (Fig.
|
|
<figureCitation id="D1C6A895CD7D98EBFADDFD45CA21AA89" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6N-P</figureCitation>
|
|
) with left and right incisors comprising five and six teeth, respectively; left lacinia mobilis comprising four teeth, right lacinia mobilis bifid with many teeth; molar process triturative with plumose seta; length ratio of palp articles 1-3 in 1.0: 2.0: 1.5; palp article 1 without setae; palp article 2 with eight marginal setae; palp article 3 with pair of A-setae, several D-setae and E-setae, lateral face with fine setae. Lower lip (Fig.
|
|
<figureCitation id="761F564E6F4313F48B87DE3C642723F7" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6Q</figureCitation>
|
|
) lacking inner lobes; outer lobes broad, shoulder rounded, with fine setae. Maxilla 1 (Fig.
|
|
<figureCitation id="AEBEDB225A908AD6AD1A1E3780F8D8E8" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6R, S</figureCitation>
|
|
) with elliptical inner lobe, bearing eight plumose setae on medial margin; outer plate rectangular, with 11 serrate robust setae apically; palp 2-articulate, article 1 without setae, article 2 with five robust setae and slender plumose seta apically. Maxilla 2 (Fig.
|
|
<figureCitation id="2D26F722EA88BD8563A60755EF2D607B" captionStart="Figure 6" captionStartId="F6" captionText="Figure 6. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A head, lateral view B-D dorsal margins of pleonites 1 - 3, dorsal views E-G epimeral plates 1 - 3, lateral views H-J dorsal margins of urosomites 1 - 3, dorsal views K antenna 1 (some flagellar articles are omitted), lateral view L antenna 2 (some flagellar articles are omitted), lateral view M upper lip, anterior view N right mandible, medial view O incisor and lacinia mobilis of right mandible, medial view P incisor and lacinia mobilis of left mandible, lateral view Q lower lip, anterior view R maxilla 1, dorsal view S apical robust setae on outer plate of maxilla 1, dorsal view T maxilla 2, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure6" httpUri="https://binary.pensoft.net/fig/729389" pageId="0" pageNumber="21">6T</figureCitation>
|
|
) with inner plate bearing seven plumose setae in oblique row. Maxilliped (Fig.
|
|
<figureCitation id="81CC5C699EC127D8C93573CE56E9DBFB" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">7A-C</figureCitation>
|
|
) with inner plate exceeding end of palp article 1, subquadrate, bearing three subapical robust setae and medial robust seta; outer plate ovate, reaching middle of palp article 2, with row of robust setae along apical to medial margins; palp 4-articulate, article 2 longest with medial setae, nail of article 4 distinct.
|
|
</paragraph>
|
|
<caption id="E40B586C4EC97A600692C329BEDE18B6" doi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21" start="Figure 7" startId="F7">
|
|
<paragraph id="25F8FE671E2D06914250745B4FE12496" pageId="0" pageNumber="21">
|
|
<emphasis id="1ED4C90D45409DB3AD912803067909FE" bold="true" pageId="0" pageNumber="21">Figure 7.</emphasis>
|
|
<taxonomicName id="C524A5DADBC9DF6DAE933C7F79CEC2F7" authorityName="Shintani & Lee & Tomikawa" authorityYear="2022" class="Malacostraca" family="Mesogammaridae" genus="Eoniphargus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eoniphargus iwataorum" order="Amphipoda" pageId="0" pageNumber="21" phylum="Arthropoda" rank="species" species="iwataorum">
|
|
<emphasis id="31C480314AE95C817D8B16A98627AB18" italics="true" pageId="0" pageNumber="21">Eoniphargus iwataorum</emphasis>
|
|
</taxonomicName>
|
|
sp. nov., female holotype (NSMT-Cr 30782)
|
|
<emphasis id="2D2F90379F3C9C573C10E76676C28AC0" bold="true" pageId="0" pageNumber="21">A</emphasis>
|
|
maxilliped, dorsal view
|
|
<emphasis id="3AF65C4980604F7756178651AAD5EBB1" bold="true" pageId="0" pageNumber="21">B</emphasis>
|
|
inner plate of maxilliped, dorsal view
|
|
<emphasis id="FAD34A586953474E5676BD62064FB68D" bold="true" pageId="0" pageNumber="21">C</emphasis>
|
|
outer plate of maxilliped, dorsal view
|
|
<emphasis id="6B8E363A1271D360324F3D0D7AFD5A32" bold="true" pageId="0" pageNumber="21">D</emphasis>
|
|
gnathopod 1, lateral view
|
|
<emphasis id="B0EAAA399FC88854E8B52E39C72BF64A" bold="true" pageId="0" pageNumber="21">E</emphasis>
|
|
palmar margin and dactylus of gnathopod 1, medial view
|
|
<emphasis id="7D6ED436313015A9921543DA62433DDE" bold="true" pageId="0" pageNumber="21">F</emphasis>
|
|
gnathopod 2, lateral view
|
|
<emphasis id="04538577D3AC987CD0EF89E34CCCB225" bold="true" pageId="0" pageNumber="21">G</emphasis>
|
|
palmar margin and dactylus of gnathopod 2, medial view
|
|
<emphasis id="73326D96AE260B38C3135951D6ACB184" bold="true" pageId="0" pageNumber="21">H</emphasis>
|
|
pereopod 3, lateral view
|
|
<emphasis id="8C4E81789F0BCC5C7FDF5D353DA19506" bold="true" pageId="0" pageNumber="21">I</emphasis>
|
|
dactylus of pereopod 3, lateral view
|
|
<emphasis id="7B940758035F98A6853360ED7D4C5CD4" bold="true" pageId="0" pageNumber="21">J</emphasis>
|
|
pereopod 4, lateral view
|
|
<emphasis id="69AA11340B3ABF643224B40BC94A3A64" bold="true" pageId="0" pageNumber="21">K</emphasis>
|
|
pereopod 5, lateral view
|
|
<emphasis id="A1A54732D2D7C9A893904C91F1339D68" bold="true" pageId="0" pageNumber="21">L</emphasis>
|
|
pereopod 6, lateral view.
|
|
</paragraph>
|
|
</caption>
|
|
<paragraph id="5746C3CF72A047A0542474745D8046C2" pageId="0" pageNumber="21">
|
|
Gnathopod 1 (Fig.
|
|
<figureCitation id="3CD46BE65BDDF9629680BB9E6B9B4AF3" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">7D, E</figureCitation>
|
|
) with subquadrate coxa bearing setae along anterior to ventral margins; anterior and posterior margins of basis with long setae; carpus length 0.9 times as long as length of propodus and 1.4 times width of carpus; propodus length 1.7 times width, palmar margin weakly serrate, oblique, with three medial and one lateral robust setae; dactylus reaching posterodistal corner of propodus. Gnathopod 2 (Fig.
|
|
<figureCitation id="20E99CEAA2F412D4DD7A1BE0AEBBDBD5" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">7F, G</figureCitation>
|
|
) with coxa expanded proximally bearing setae along anterior to ventral margins; posterior margin of basis with long setae; carpus length 1.2 times as long as length of propodus and 2.8 times width of carpus; propodus length 2.2 times width, palmar margin weakly serrate, almost vertical, with two medial and two lateral robust setae; dactylus reaching posterodistal corner of propodus.
|
|
</paragraph>
|
|
<paragraph id="BDD543D94B65EC96EBB4B87D023B2797" pageId="0" pageNumber="21">
|
|
Pereopod 3 (Fig.
|
|
<figureCitation id="BD6B6FC144E70E03B104675269859946" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">7H, I</figureCitation>
|
|
) with subquadrate coxa, proximally expanded, bearing setae along anterior to ventral margins; posterior margin of basis with long setae. Pereopod 4 (Fig.
|
|
<figureCitation id="B5523AF08C541EBEF1683DB670DA4D5C" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">7J</figureCitation>
|
|
) with coxa bearing setae along anterior to ventral margins, posteroproximally concave; posterior margin of basis with long setae. Pereopod 5 (Fig.
|
|
<figureCitation id="89367609CE4CF8594E7BAF9B217E9B20" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">7K</figureCitation>
|
|
) with bilobed coxa bearing seta on posterior lobe; anterior margin of basis with robust setae, posterodistal corner weakly lobate. Pereopod 6 (Fig.
|
|
<figureCitation id="3176D8B2FCBCC307C1AB6B8EA31029CF" captionStart="Figure 7" captionStartId="F7" captionText="Figure 7. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A maxilliped, dorsal view B inner plate of maxilliped, dorsal view C outer plate of maxilliped, dorsal view D gnathopod 1, lateral view E palmar margin and dactylus of gnathopod 1, medial view F gnathopod 2, lateral view G palmar margin and dactylus of gnathopod 2, medial view H pereopod 3, lateral view I dactylus of pereopod 3, lateral view J pereopod 4, lateral view K pereopod 5, lateral view L pereopod 6, lateral view." figureDoi="10.3897/subtbiol.44.86914.figure7" httpUri="https://binary.pensoft.net/fig/729390" pageId="0" pageNumber="21">7L</figureCitation>
|
|
) with bilobed coxa bearing seta on anterior and posterior lobes; basis with robust setae on anterior margin, posterodistal corner weakly lobate. Pereopod 7 (Fig.
|
|
<figureCitation id="5E1B9B8F83AEC27662A50296531E26DB" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8A-C</figureCitation>
|
|
) with elliptical basis bearing robust setae on anterior margin, posterodistal corner weakly lobate.
|
|
</paragraph>
|
|
<caption id="857037A44E599B21031542638D22F80F" doi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21" start="Figure 8" startId="F8">
|
|
<paragraph id="CF4947AC2D0F3A2E8AB59720733BD8BC" pageId="0" pageNumber="21">
|
|
<emphasis id="1CE0BF178E41FE45F15A9BFF53ADEF18" bold="true" pageId="0" pageNumber="21">Figure 8.</emphasis>
|
|
<taxonomicName id="2964E7CBB3E5455A2A85195DD7050706" authorityName="Shintani & Lee & Tomikawa" authorityYear="2022" class="Malacostraca" family="Mesogammaridae" genus="Eoniphargus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eoniphargus iwataorum" order="Amphipoda" pageId="0" pageNumber="21" phylum="Arthropoda" rank="species" species="iwataorum">
|
|
<emphasis id="C1972D446BDDCA5EA289D3AE16B15DCB" italics="true" pageId="0" pageNumber="21">Eoniphargus iwataorum</emphasis>
|
|
</taxonomicName>
|
|
sp. nov., female holotype (NSMT-Cr 30782)
|
|
<emphasis id="E31A03CCB220D9F5E94C90D804E730E5" bold="true" pageId="0" pageNumber="21">A, B</emphasis>
|
|
pereopod 7, lateral views
|
|
<emphasis id="0A186CCAC823F8BDFB4433F7E718163B" bold="true" pageId="0" pageNumber="21">C</emphasis>
|
|
dactylus of pereopod 3, lateral view
|
|
<emphasis id="CA3A59402F1A19B3BB0779609F0D22AD" bold="true" pageId="0" pageNumber="21">D</emphasis>
|
|
coxal gill 4, lateral view
|
|
<emphasis id="17B850D099300967F9E1DD3A1ECCEBF3" bold="true" pageId="0" pageNumber="21">E</emphasis>
|
|
coxal gill 6, lateral view
|
|
<emphasis id="CFF51107C88E59AD255B825978F330FA" bold="true" pageId="0" pageNumber="21">F</emphasis>
|
|
peduncle of pleopod 1, lateral view
|
|
<emphasis id="07FBAE45D374BB4D1DA711F24A7F702B" bold="true" pageId="0" pageNumber="21">G</emphasis>
|
|
pleopod 2, medial view
|
|
<emphasis id="00724DC242A9F3F7082956AAFA90B0A2" bold="true" pageId="0" pageNumber="21">H</emphasis>
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peduncle of pleopod 3, lateral view
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<emphasis id="11AB002DEF6DBF5CC062C1AA9E039954" bold="true" pageId="0" pageNumber="21">I</emphasis>
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retinacula of pleopod 2, medial view
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<emphasis id="DBA7E4D441582491D6B16CAE7BE28F66" bold="true" pageId="0" pageNumber="21">J</emphasis>
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uropod 1, dorsal view
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<emphasis id="E72525464FCF0B19C1A7D84006F4BB34" bold="true" pageId="0" pageNumber="21">K</emphasis>
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uropod 2, dorsal view
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<emphasis id="AE1989E475F7253A03EC9992A00081CC" bold="true" pageId="0" pageNumber="21">L</emphasis>
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uropod 3, ventral view
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<emphasis id="B3285FD01B5197868DE267A79B8136E6" bold="true" pageId="0" pageNumber="21">M</emphasis>
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telson, dorsal view.
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</paragraph>
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</caption>
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<paragraph id="E8FA292ACE6E1FA68F8D7BBDD4DE898D" pageId="0" pageNumber="21">
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Coxal gills (Fig.
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<figureCitation id="2B81189A525DDEE94478052E906C7406" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8D, E</figureCitation>
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) ovate with stalks on gnathopod 2 and pereopods 3-6.
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</paragraph>
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<paragraph id="F696A97EEAC55714008885348CC445B4" pageId="0" pageNumber="21">
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Pleopods 1-3 (Fig.
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<figureCitation id="D679BE5405C79A78EA004348EB3BB3FA" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8F-I</figureCitation>
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) with peduncles longer than rami, bearing distal seta on pleopods 1 and 2 and proximal seta on pleopod 3; retinacula paired (Fig.
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|
<figureCitation id="48188F285E2B2A4F5A32AF08067EBD5C" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8I</figureCitation>
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); mediobasal margin of inner ramus with bifid plumose setae; rami well developed.
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</paragraph>
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<paragraph id="E02E5A22D36680E5D38770DC65A19065" pageId="0" pageNumber="21">
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|
Uropod 1 (Fig.
|
|
<figureCitation id="999F387A8074CF0CD8F41EC4B9359610" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8J</figureCitation>
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|
) with peduncle bearing three basofacial robust setae and dorsal robust setae; inner ramus length 0.7 times as long as peduncle, with two medial and one lateral robust setae, and ventroproximal seta; outer ramus length 0.9 times as long as inner ramus, with two robust setae on medial margin. Uropod 2 (Fig.
|
|
<figureCitation id="1CA7B2740DAE06D6B7F30711371435B8" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8K</figureCitation>
|
|
) with peduncle bearing dorsal robust setae; inner ramus as long as peduncle, bearing two medial robust setae and ventroproximal slender seta; outer ramus length 0.7 times as long as inner ramus, without marginal setae. Uropod 3 (Fig.
|
|
<figureCitation id="A9ABAD27D502E7AF839846E1B90CE6D2" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8L</figureCitation>
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) with peduncle length 0.3 times as long as outer ramus, bearing robust setae on distal edge; inner ramus length 0.2 times as long as outer ramus, with seta on medial margin; outer ramus 2-articulate, proximal article with plumose setae on medial margin and robust setae on medial and lateral margins, terminal article length 0.2 times as long as proximal article with subapical setae.
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</paragraph>
|
|
<paragraph id="13D615253338623514716EAAB99DAAEC" pageId="0" pageNumber="21">
|
|
Telson (Fig.
|
|
<figureCitation id="E0D739634C305477DE1F4B3CA96218C4" captionStart="Figure 8" captionStartId="F8" captionText="Figure 8. Eoniphargus iwataorum sp. nov., female holotype (NSMT-Cr 30782) A, B pereopod 7, lateral views C dactylus of pereopod 3, lateral view D coxal gill 4, lateral view E coxal gill 6, lateral view F peduncle of pleopod 1, lateral view G pleopod 2, medial view H peduncle of pleopod 3, lateral view I retinacula of pleopod 2, medial view J uropod 1, dorsal view K uropod 2, dorsal view L uropod 3, ventral view M telson, dorsal view." figureDoi="10.3897/subtbiol.44.86914.figure8" httpUri="https://binary.pensoft.net/fig/729391" pageId="0" pageNumber="21">8M</figureCitation>
|
|
) length slightly shorter than wide, each lobe with two lateral and three apical robust setae and two dorsolateral penicillate setae, cleft for 67%.
|
|
</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="345421D99B405173D0FD05DE1EDEB75E" pageId="0" pageNumber="21" type="distribution">
|
|
<paragraph id="A6F24DC8E422E1084B31B29511D18679" pageId="0" pageNumber="21">Distribution and environment.</paragraph>
|
|
<paragraph id="8A092DA27C1567A151FB8FB0AA4237CD" pageId="0" pageNumber="21">The species is known only from its type locality in the Sabi River, Tochigi Prefecture, Japan.</paragraph>
|
|
</subSubSection>
|
|
<subSubSection id="62625CF86E18AF5DE927AE0D2ADECAE4" pageId="0" pageNumber="21" type="remarks">
|
|
<paragraph id="959518ECB07EDE7663E875D9256CF382" pageId="0" pageNumber="21">Remarks.</paragraph>
|
|
<paragraph id="5EDFB00D7D268120F79A7FA7775FF0F0" pageId="0" pageNumber="21">
|
|
<taxonomicName id="18846AC0C36B405D1296C8D5BF8DF4B7" authorityName="Shintani & Lee & Tomikawa" authorityYear="2022" class="Malacostraca" family="Mesogammaridae" genus="Eoniphargus" higherTaxonomySource="CoL" kingdom="Animalia" lsidName="Eoniphargus iwataorum" order="Amphipoda" pageId="0" pageNumber="21" phylum="Arthropoda" rank="species" species="iwataorum">
|
|
<emphasis id="2197B0A3E1182F36AE14862783D54294" italics="true" pageId="0" pageNumber="21">Eoniphargus iwataorum</emphasis>
|
|
</taxonomicName>
|
|
sp. nov. is similar to
|
|
<taxonomicName id="4E375A9BF5AE31888E9EDC0E356646B9" lsidName="E. kojimai" pageId="0" pageNumber="21" rank="species" species="kojimai">
|
|
<emphasis id="6FE8D58BFA23CEE6D8C6A9E5918734E9" italics="true" pageId="0" pageNumber="21">E. kojimai</emphasis>
|
|
</taxonomicName>
|
|
but differs from the latter in the following features (features of
|
|
<taxonomicName id="E0CA9F5066DAC0492E4D08C0EB449F9A" lsidName="E. kojimai" pageId="0" pageNumber="21" rank="species" species="kojimai">
|
|
<emphasis id="1158106F3CCA8C29CC359DC7FB022652" italics="true" pageId="0" pageNumber="21">E. kojimai</emphasis>
|
|
</taxonomicName>
|
|
in parentheses): urosomite 3 without robust setae on dorsal margin (bearing robust setae), maxilla 2 with inner plate bearing seven setae in oblique row (nine setae), and uropod 2 without robust seta on lateral margin of outer ramus (bearing robust seta).
|
|
</paragraph>
|
|
</subSubSection>
|
|
</treatment>
|
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</document> |