268 lines
31 KiB
XML
268 lines
31 KiB
XML
<document id="08E560FE7DC730CE0CD44FE4C62C382A" ID-CLB-Dataset="147238" ID-DOI="10.11646/zootaxa.5188.1.6" ID-GBIF-Dataset="fc228778-e408-49cf-aed3-73078dac29b0" ID-ISSN="1175-5326" ID-Zenodo-Dep="7087440" ID-ZooBank="6EB3E7B3-990F-4AD5-B531-9CB1F4BFCD52" IM.materialsCitations_approvedBy="felipe" IM.metadata_approvedBy="felipe" IM.taxonomicNames_approvedBy="felipe" checkinTime="1663361413070" checkinUser="plazi" docAuthor="Ariyama, Hiroyuki & Kohtsuka, Hisanori" docDate="2022" docId="03ED1871FFAB9A7CFF6BFB4DFD2EFC4C" docLanguage="en" docName="zootaxa.5188.1.6.pdf" docOrigin="Zootaxa 5188 (1)" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Metarhachotropis parva Ariyama & Kohtsuka 2022, sp. nov." docType="treatment" docUuid="C023EC1D-12DB-4174-827F-FBFC989FE855" docUuidSource="ZooBank" docVersion="7" lastPageNumber="99" masterDocId="FFD46009FFAA9A78FFFCFF89FFDAFFE9" masterDocTitle="Metarhachotropis parva, a new genus and species of Eusiridae (Crustacea: Amphipoda) from Sagami Bay, central Japan" masterLastPageNumber="100" masterPageNumber="95" pageNumber="96" updateTime="1699381883453" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:mods id="6F0CB80D274F30BF0B16089AC953B75C" xmlns:mods="http://www.loc.gov/mods/v3">
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<mods:titleInfo id="F135E2EB59CBC0D56E41E35B89F12776">
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<mods:title id="4CDEE1E5E54F17FE87DC51F8A5C8E5F6">Metarhachotropis parva, a new genus and species of Eusiridae (Crustacea: Amphipoda) from Sagami Bay, central Japan</mods:title>
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</mods:titleInfo>
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<mods:name id="AD286DC4D1F08FD87AD696345797A9EB" type="personal">
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<mods:role id="D305EEC50726EE8C296438BA28CC32C5">
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<mods:roleTerm id="94EE5CF9B2D989E9EB9FD4BC0D5081CD">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="D3082FDE6A024E4EB9F7A1BD6E54A539">Ariyama, Hiroyuki</mods:namePart>
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<mods:affiliation id="DB1BA467A4E1D6ECF8DB1A399567333C">Osaka Museum of Natural History, Nagai Park, Higashi-Sumiyoshi, Osaka 546 - 0034 Japan.</mods:affiliation>
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</mods:name>
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<mods:name id="9DBEA9AEA920105D9D427B301D325291" type="personal">
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<mods:role id="048DB5FB2C7751B2F3F09DC289929549">
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<mods:roleTerm id="2F659EF5FAA4736DEF97D95FED0EF9F0">Author</mods:roleTerm>
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</mods:role>
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<mods:namePart id="5CEA5120B1BB2EFD844232398DC51E47">Kohtsuka, Hisanori</mods:namePart>
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<mods:nameIdentifier id="C8D6EBEE383BFCB94098150BD05C0E26" type="ORCID">0000-0003-4440-2776</mods:nameIdentifier>
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<mods:affiliation id="D8D25911E85AB97F07EF464A4B8D204D">Misaki Marine Biological Station, Graduate School of Science, The University of Tokyo, 1024 Koajiro, Misaki, Miura, Kanagawa 238 - 0025 Japan. kohtsuka @ g. ecc. u-tokyo. ac. jp; https: // orcid. org / 0000 - 0003 - 4440 - 2776</mods:affiliation>
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<mods:nameIdentifier id="86E6EEE18C7A98568A42785FCB55022C" type="email">kohtsuka@g.ecc.u-tokyo.ac.jp</mods:nameIdentifier>
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<mods:typeOfResource id="16AB0EED30B947CED96D318836ED6AED">text</mods:typeOfResource>
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<mods:title id="773792E851899F4EBC5D314DBF1ADC26">Zootaxa</mods:title>
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</mods:titleInfo>
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<mods:part id="45EA9DEAF77DC6E0E9610A7902A10254">
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<mods:date id="7B35E69CFB44A481FD8476C2924D630C">2022</mods:date>
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<mods:number id="F8FF53FC19A2BC8E0D955380AB104789">2022-09-15</mods:number>
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</mods:detail>
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<mods:detail id="AA23EEAD2A697359C8687563129C776C" type="volume">
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<mods:number id="1C9BE4B4B15D45C73BCA76FB9CC95546">5188</mods:number>
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</mods:detail>
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<mods:detail id="2E9681FA4F7C674C6FA6FC7C81E6FFB6" type="issue">
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<mods:number id="8B2207D4A47C93EBB83D99D3BFE1B3BF">1</mods:number>
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<mods:start id="C91E03AC1D1158A5CDAE7CCABFD751B1">95</mods:start>
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<mods:end id="7A64C9D5BE55887305AFAEEBFDBF92B4">100</mods:end>
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<mods:classification id="2701DD0564BD73835FB3DE5B1E5E3B35">journal article</mods:classification>
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<mods:identifier id="EB4941600ECC4BCEDC074D4A97D9F5B8" type="CLB-Dataset">147238</mods:identifier>
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<mods:identifier id="04C8B0A2E1F7EE688E4533D9F47EEF8C" type="DOI">10.11646/zootaxa.5188.1.6</mods:identifier>
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<mods:identifier id="E23AF940B64C8B3305367DC97283D8F8" type="GBIF-Dataset">fc228778-e408-49cf-aed3-73078dac29b0</mods:identifier>
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<mods:identifier id="7DBFBC1F34142B649FBC33277AB40BAA" type="ISSN">1175-5326</mods:identifier>
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<mods:identifier id="FB846306BC918F8EEB41ADB5666BF0A9" type="Zenodo-Dep">7087440</mods:identifier>
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</mods:mods>
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<treatment id="03ED1871FFAB9A7CFF6BFB4DFD2EFC4C" ID-DOI="http://doi.org/10.5281/zenodo.7087442" ID-GBIF-Taxon="200879916" ID-Zenodo-Dep="7087442" LSID="urn:lsid:zoobank.org:act:C023EC1D-12DB-4174-827F-FBFC989FE855" httpUri="http://treatment.plazi.org/id/03ED1871FFAB9A7CFF6BFB4DFD2EFC4C" lastPageId="4" lastPageNumber="99" pageId="1" pageNumber="96">
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<subSubSection id="C35EFAECFFAB9A79FF6BFB4DFD49FAEA" pageId="1" pageNumber="96" type="nomenclature">
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<paragraph id="8BFBA967FFAB9A79FF6BFB4DFDFBFB36" blockId="1.[151,659,1220,1319]" box="[151,545,1220,1247]" pageId="1" pageNumber="96">
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<heading id="D0B31E0BFFAB9A79FF6BFB4DFDFBFB36" bold="true" box="[151,545,1220,1247]" fontSize="11" level="1" pageId="1" pageNumber="96" reason="1">
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<emphasis id="B9307575FFAB9A79FF6BFB4DFDFBFB36" bold="true" box="[151,545,1220,1247]" pageId="1" pageNumber="96">
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<taxonomicName id="4C44D2E4FFAB9A79FF6BFB4DFE61FB36" ID-CoL="b2ae957b-d114-4689-b525-c5ef7f43e819" authority="Ariyama & Kohtsuka, 2022" authorityName="Ariyama & Kohtsuka" authorityYear="2022" box="[151,443,1220,1247]" class="Malacostraca" family="Eusiridae" genus="Metarhachotropis" kingdom="Animalia" order="Amphipoda" pageId="1" pageNumber="96" phylum="Arthropoda" rank="species" species="parva" status="sp. nov.">
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<emphasis id="B9307575FFAB9A79FF6BFB4DFE61FB36" bold="true" box="[151,443,1220,1247]" italics="true" pageId="1" pageNumber="96">Metarhachotropis parva</emphasis>
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</taxonomicName>
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<taxonomicNameLabel id="A203C80EFFAB9A79FE3FFB4CFDFBFB36" box="[451,545,1221,1247]" pageId="1" pageNumber="96" rank="species">sp. nov.</taxonomicNameLabel>
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</emphasis>
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||
</heading>
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</paragraph>
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<paragraph id="8BFBA967FFAB9A79FF6BFB60FD49FAEA" blockId="1.[151,659,1220,1319]" box="[151,659,1256,1283]" pageId="1" pageNumber="96">[Japanese name: Kawari-ryūgūyokoebi, new]</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C35EFAECFFAB9A79FF6BFA85FED1FACE" box="[151,267,1292,1319]" pageId="1" pageNumber="96" type="description">
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||
<paragraph id="8BFBA967FFAB9A79FF6BFA85FED1FACE" blockId="1.[151,659,1220,1319]" box="[151,267,1292,1319]" pageId="1" pageNumber="96">
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||
(
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<figureCitation id="137FB5E2FFAB9A79FF63FA85FED9FACE" box="[159,259,1292,1319]" captionStart-0="FIGURE 1" captionStart-1="FIGURE 2" captionStart-2="FIGURE 3" captionStart-3="FIGURE 4" captionStartId-0="2.[151,250,769,793]" captionStartId-1="2.[151,250,1974,1998]" captionStartId-2="3.[151,250,2004,2028]" captionStartId-3="4.[151,250,1971,1995]" captionTargetBox-0="[162,1424,192,732]" captionTargetBox-1="[173,1419,834,1937]" captionTargetBox-2="[190,1406,197,1970]" captionTargetBox-3="[168,1420,972,1934]" captionTargetId-0="figure-23@2.[151,1436,179,743]" captionTargetId-1="figure-38@2.[158,1429,818,1950]" captionTargetId-2="figure-17@3.[169,1419,181,1980]" captionTargetId-3="figure-330@4.[151,1436,957,1948]" captionTargetPageId-0="2" captionTargetPageId-1="2" captionTargetPageId-2="3" captionTargetPageId-3="4" captionText-0="FIGURE 1. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515). Habitus." captionText-1="FIGURE 2. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515) [antennae and maxilla 2], and paratype, male, 2.0 mm (OMNH-Ar-12516) [M, the remaining]. Scales: 0.05 mm." captionText-2="FIGURE 3. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515). Scales: 0.1 mm." captionText-3="FIGURE 4. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515). Inner ramus of pleopod 2 lost. Scales: 0.1 mm." figureDoi-0="http://doi.org/10.5281/zenodo.7087444" figureDoi-1="http://doi.org/10.5281/zenodo.7087446" figureDoi-2="http://doi.org/10.5281/zenodo.7087448" figureDoi-3="http://doi.org/10.5281/zenodo.7087450" httpUri-0="https://zenodo.org/record/7087444/files/figure.png" httpUri-1="https://zenodo.org/record/7087446/files/figure.png" httpUri-2="https://zenodo.org/record/7087448/files/figure.png" httpUri-3="https://zenodo.org/record/7087450/files/figure.png" pageId="1" pageNumber="96">Figs 1–4</figureCitation>
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)
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</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C35EFAECFFAB9A79FF6BFADCFAD6FA32" pageId="1" pageNumber="96" type="materials_examined">
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||
<paragraph id="8BFBA967FFAB9A79FF6BFADCFA43FA5F" blockId="1.[151,1437,1364,2039]" pageId="1" pageNumber="96">
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||
<emphasis id="B9307575FFAB9A79FF6BFADCFE9CFA87" bold="true" box="[151,326,1364,1391]" pageId="1" pageNumber="96">Type material.</emphasis>
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<materialsCitation id="3B2CA33AFFAB9A79FEB2FADDFD4DFA5F" ID-GBIF-Occurrence="3909834302" collectingDate="2015-11-05" collectorName="H. Kohtsuka." elevation="96" latitude="35.138615" location="Jogashima Island in Miura City" longLatPrecision="19" longitude="139.56139" pageId="1" pageNumber="96" specimenCount="1" stateProvince="Kanagawa" typeStatus="holotype">
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<typeStatus id="54FF17C5FFAB9A79FEB2FADDFE61FA87" box="[334,443,1364,1390]" pageId="1" pageNumber="96" type="holotype">Holotype</typeStatus>
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: male,
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||
<quantity id="4CBC0482FFAB9A79FDF0FADCFDB9FA86" box="[524,611,1365,1391]" metricMagnitude="-3" metricUnit="m" metricValue="2.1" pageId="1" pageNumber="96" unit="mm" value="2.1">2.1 mm</quantity>
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(OMNH-Ar-12515), west of
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<location id="8E9BFFBCFFAB9A79FC4FFADDFAC3FA87" LSID="urn:lsid:plazi:treatment:03ED1871FFAB9A7CFF6BFB4DFD2EFC4C:8E9BFFBCFFAB9A79FC4FFADDFAC3FA87" box="[947,1305,1364,1390]" latitude="35.138615" longLatPrecision="19" longitude="139.56139" name="Jogashima Island in Miura City" pageId="1" pageNumber="96" stateProvince="Kanagawa">Jōgashima Island in Miura City</location>
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||
,
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||
<collectingRegion id="49806785FFAB9A79FADAFADCFED7FA7B" country="Japan" name="Kanagawa" pageId="1" pageNumber="96">Kanagawa Prefecture</collectingRegion>
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||
,
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||
<geoCoordinate id="EE70CFA0FFAB9A79FEE0FAF1FE7BFA7A" box="[284,417,1400,1427]" degrees="35" direction="north" minutes="08" orientation="latitude" pageId="1" pageNumber="96" precision="15" seconds="25" value="35.140278">35°08'25"N</geoCoordinate>
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||
<geoCoordinate id="EE70CFA0FFAB9A79FE57FAF1FDE1FA7A" box="[427,571,1400,1427]" degrees="139" direction="east" minutes="33" orientation="longitude" pageId="1" pageNumber="96" precision="15" seconds="42" value="139.56168">139°33'42"E</geoCoordinate>
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||
–35°08'19"N 139°33'41"E,
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<elevation id="00694E54FFAB9A79FC84FAF1FBF1FA7B" box="[888,1067,1400,1427]" metricMagnitude="1" metricUnit="m" metricValue="9.55" metricValueMax="9.6" metricValueMin="9.5" pageId="1" pageNumber="96" unit="m" value="95.5" valueMax="96.0" valueMin="95.0">
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||
<quantity id="4CBC0482FFAB9A79FC84FAF1FC05FA7A" box="[888,991,1400,1427]" metricMagnitude="1" metricUnit="m" metricValue="9.55" metricValueMax="9.6" metricValueMin="9.5" pageId="1" pageNumber="96" unit="m" value="95.5" valueMax="96.0" valueMin="95.0">95–96 m</quantity>
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depth
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</elevation>
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, gravel and sand bottom, using dredge,
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<date id="FFFA8FA7FFAB9A79FF0DFA15FE65FA5E" box="[241,447,1436,1463]" pageId="1" pageNumber="96" value="2015-11-05">
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||
<collectingDate id="EFBE764FFFAB9A79FF0DFA15FE65FA5E" box="[241,447,1436,1463]" pageId="1" pageNumber="96" value="2015-11-05">5 November 2015</collectingDate>
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||
</date>
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, coll.
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<collectorName id="26B1CCB1FFAB9A79FDFEFA14FD4DFA5F" box="[514,663,1436,1463]" pageId="1" pageNumber="96">H. Kohtsuka.</collectorName>
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</materialsCitation>
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<typeStatus id="54FF17C5FFAB9A79FD61FA14FCD9FA5E" box="[669,771,1437,1463]" pageId="1" pageNumber="96" type="paratype">Paratype</typeStatus>
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: male, 2.0 mm (OMNH-Ar-12516), same data as holotype.
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</paragraph>
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<paragraph id="8BFBA967FFAB9A79FF3BFA48FAD6FA32" blockId="1.[151,1437,1364,2039]" box="[199,1292,1472,1499]" pageId="1" pageNumber="96">
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||
<materialsCitation id="3B2CA33AFFAB9A79FF3BFA48FAD2FA32" ID-GBIF-Occurrence="3909834301" box="[199,1288,1472,1499]" country="Japan" location="Sagami Bay" municipality="Jogashima Island in Miura City" pageId="1" pageNumber="96" specimenCount="1" stateProvince="Kanagawa" typeStatus="holotype">
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||
<emphasis id="B9307575FFAB9A79FF3BFA48FEBCFA33" bold="true" box="[199,358,1472,1499]" pageId="1" pageNumber="96">
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||
<typeStatus id="54FF17C5FFAB9A79FF3BFA48FED8FA32" box="[199,258,1473,1499]" pageId="1" pageNumber="96">Type</typeStatus>
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||
locality.
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||
</emphasis>
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||
<location id="8E9BFFBCFFAB9A79FE90FA49FE2FFA32" LSID="urn:lsid:plazi:treatment:03ED1871FFAB9A7CFF6BFB4DFD2EFC4C:8E9BFFBCFFAB9A79FE90FA49FE2FFA32" box="[364,501,1472,1499]" country="Japan" municipality="Jogashima Island in Miura City" name="Sagami Bay" pageId="1" pageNumber="96" stateProvince="Kanagawa">Sagami Bay</location>
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||
, west of
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||
<collectingMunicipality id="6B9F331DFFAB9A79FDA5FA49FC61FA33" box="[601,955,1472,1498]" pageId="1" pageNumber="96">Jōgashima Island in Miura City</collectingMunicipality>
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||
,
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||
<collectingRegion id="49806785FFAB9A79FC3AFA48FB60FA33" box="[966,1210,1472,1499]" country="Japan" name="Kanagawa" pageId="1" pageNumber="96">Kanagawa Prefecture</collectingRegion>
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||
,
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||
<collectingCountry id="F353E9F7FFAB9A79FB39FA48FAD2FA32" box="[1221,1288,1473,1499]" name="Japan" pageId="1" pageNumber="96">Japan</collectingCountry>
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||
</materialsCitation>
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||
.
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||
</paragraph>
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||
</subSubSection>
|
||
<subSubSection id="C35EFAECFFAB9A79FF3BFA6CFB91FA17" box="[199,1099,1508,1535]" pageId="1" pageNumber="96" type="etymology">
|
||
<paragraph id="8BFBA967FFAB9A79FF3BFA6CFB91FA17" blockId="1.[151,1437,1364,2039]" box="[199,1099,1508,1535]" pageId="1" pageNumber="96">
|
||
<emphasis id="B9307575FFAB9A79FF3BFA6CFE94FA16" bold="true" box="[199,334,1509,1535]" pageId="1" pageNumber="96">Etymology.</emphasis>
|
||
From the Latin
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||
<emphasis id="B9307575FFAB9A79FDF8FA6CFD8AFA17" box="[516,592,1509,1534]" italics="true" pageId="1" pageNumber="96">parvus</emphasis>
|
||
, -
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||
<emphasis id="B9307575FFAB9A79FD9BFA6CFDAFFA17" box="[615,629,1509,1534]" italics="true" pageId="1" pageNumber="96">a</emphasis>
|
||
, -
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||
<emphasis id="B9307575FFAB9A79FD71FA6CFD75FA17" box="[653,687,1509,1534]" italics="true" pageId="1" pageNumber="96">um</emphasis>
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(= small), referring to the body size.
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||
</paragraph>
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||
</subSubSection>
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||
<subSubSection id="C35EFAECFFAB9A7CFF3BF981FF07FD18" lastPageId="4" lastPageNumber="99" pageId="1" pageNumber="96" type="description">
|
||
<paragraph id="8BFBA967FFAB9A79FF3BF981FE63F9AF" blockId="1.[151,1437,1364,2039]" pageId="1" pageNumber="96">
|
||
<emphasis id="B9307575FFAB9A79FF3BF981FE67F9CA" bold="true" box="[199,445,1544,1571]" pageId="1" pageNumber="96">Description of male.</emphasis>
|
||
Based on
|
||
<typeStatus id="54FF17C5FFAB9A79FDC7F981FD47F9CB" box="[571,669,1544,1570]" pageId="1" pageNumber="96" type="holotype">holotype</typeStatus>
|
||
(OMNH-Ar-12515,
|
||
<quantity id="4CBC0482FFAB9A79FC70F980FC3CF9CA" box="[908,998,1545,1571]" metricMagnitude="-3" metricUnit="m" metricValue="2.1" pageId="1" pageNumber="96" unit="mm" value="2.1">2.1 mm</quantity>
|
||
) and
|
||
<typeStatus id="54FF17C5FFAB9A79FBD6F980FB50F9CA" box="[1066,1162,1545,1571]" pageId="1" pageNumber="96" type="paratype">paratype</typeStatus>
|
||
(OMNH-Ar-12516, 2.0 mm) only for mouthparts.
|
||
</paragraph>
|
||
<paragraph id="8BFBA967FFAB9A79FF3BF9D8FB81F81F" blockId="1.[151,1437,1364,2039]" pageId="1" pageNumber="96">
|
||
<emphasis id="B9307575FFAB9A79FF3BF9D8FEDDF982" bold="true" box="[199,263,1617,1643]" pageId="1" pageNumber="96">Head</emphasis>
|
||
(
|
||
<figureCitation id="137FB5E2FFAB9A79FEE8F9D9FE80F982" box="[276,346,1616,1643]" captionStart="FIGURE 1" captionStartId="2.[151,250,769,793]" captionTargetBox="[162,1424,192,732]" captionTargetId="figure-23@2.[151,1436,179,743]" captionTargetPageId="2" captionText="FIGURE 1. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515). Habitus." figureDoi="http://doi.org/10.5281/zenodo.7087444" httpUri="https://zenodo.org/record/7087444/files/figure.png" pageId="1" pageNumber="96">Figs 1</figureCitation>
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||
,
|
||
<figureCitation id="137FB5E2FFAB9A79FE9AF9D8FEAFF982" box="[358,373,1617,1643]" captionStart="FIGURE 2" captionStartId="2.[151,250,1974,1998]" captionTargetBox="[173,1419,834,1937]" captionTargetId="figure-38@2.[158,1429,818,1950]" captionTargetPageId="2" captionText="FIGURE 2. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515) [antennae and maxilla 2], and paratype, male, 2.0 mm (OMNH-Ar-12516) [M, the remaining]. Scales: 0.05 mm." figureDoi="http://doi.org/10.5281/zenodo.7087446" httpUri="https://zenodo.org/record/7087446/files/figure.png" pageId="1" pageNumber="96">2</figureCitation>
|
||
) large, rostrum developed.
|
||
<emphasis id="B9307575FFAB9A79FD58F9D8FD03F983" box="[676,729,1617,1642]" italics="true" pageId="1" pageNumber="96">Eyes</emphasis>
|
||
situated subventrally, ca. 1/3 length of head, composed of many dispersed ommatidia.
|
||
<emphasis id="B9307575FFAB9A79FE6CF9FCFDDEF966" box="[400,516,1653,1679]" italics="true" pageId="1" pageNumber="96">Antenna 1</emphasis>
|
||
short, about 0.3 times of BL, weakly setose; peduncular articles 1–3 with length ratio of 1:1.05:0.45, article 1 stout, ventral margin lacking robust setae; accessory flagellum short, 1-articulate, tip with 2 setae; primary flagellum with 4 articles, articles 2, 3 each with aesthetasc.
|
||
<emphasis id="B9307575FFAB9A79FBA9F934FB12F93E" box="[1109,1224,1725,1751]" italics="true" pageId="1" pageNumber="96">Antenna 2</emphasis>
|
||
also short, weakly setose; peduncular articles 3–5 with length ratio of 1:2.1:2.25; flagellum with 4 articles.
|
||
<emphasis id="B9307575FFAB9A79FB66F968FAD3F913" box="[1178,1289,1760,1786]" italics="true" pageId="1" pageNumber="96">Upper lip</emphasis>
|
||
with ventral margin rounded, bare.
|
||
<emphasis id="B9307575FFAB9A79FE6FF88DFDD3F8F7" box="[403,521,1796,1822]" italics="true" pageId="1" pageNumber="96">Mandibles</emphasis>
|
||
, incisors with 2 cusps, laciniae mobilis 2-toothed, wide in left and narrow in right, 3 accessory blades present, minute; molar columnar, poorly triturative; palp stout, article length ratio 1:4.25:5.0, articles 1, 2 lacking setae, article 3 with 2–3 short setae on tip.
|
||
<emphasis id="B9307575FFAB9A79FC9BF8C4FC0FF88F" box="[871,981,1868,1894]" italics="true" pageId="1" pageNumber="96">Lower lip</emphasis>
|
||
wide, bare; mandibular processes large, inner lobes short.
|
||
<emphasis id="B9307575FFAB9A79FE9CF8F9FE16F862" box="[352,460,1904,1931]" italics="true" pageId="1" pageNumber="96">Maxilla 1</emphasis>
|
||
with inner plate lacking seta; outer plate with 4 robust setae apically; tip of palp article 2 with 4 short setae.
|
||
<emphasis id="B9307575FFAB9A79FE79F81DFE28F846" box="[389,498,1940,1967]" italics="true" pageId="1" pageNumber="96">Maxilla 2</emphasis>
|
||
, inner plate wider and shorter than outer plate, both plates with several short setae distally.
|
||
<emphasis id="B9307575FFAB9A79FF0BF831FEAAF83B" box="[247,368,1976,2002]" italics="true" pageId="1" pageNumber="96">Maxilliped</emphasis>
|
||
stout; inner and outer plates bearing 5 and 2 short setae, respectively; palp developed, medial margin of article 2 and distal margin of article 3 with 2 and 5 short setae, respectively.
|
||
</paragraph>
|
||
<caption id="DF3BF9EFFFA89A7AFF6BFC88FB4CFCF3" ID-DOI="http://doi.org/10.5281/zenodo.7087444" ID-Zenodo-Dep="7087444" box="[151,1174,769,794]" httpUri="https://zenodo.org/record/7087444/files/figure.png" pageId="2" pageNumber="97" startId="2.[151,250,769,793]" targetBox="[162,1424,192,732]" targetPageId="2">
|
||
<paragraph id="8BFBA967FFA89A7AFF6BFC88FB4CFCF3" blockId="2.[151,1174,769,794]" box="[151,1174,769,794]" pageId="2" pageNumber="97">
|
||
<emphasis id="B9307575FFA89A7AFF6BFC88FEC9FCF0" bold="true" box="[151,275,769,793]" pageId="2" pageNumber="97">FIGURE 1.</emphasis>
|
||
<taxonomicName id="4C44D2E4FFA89A7AFEE5FC8BFDCAFCF0" authority="Ariyama & Kohtsuka, 2022" authorityName="Ariyama & Kohtsuka" authorityYear="2022" box="[281,528,770,794]" class="Malacostraca" family="Eusiridae" genus="Metarhachotropis" kingdom="Animalia" order="Amphipoda" pageId="2" pageNumber="97" phylum="Arthropoda" rank="species" species="parva" status="sp. nov.">
|
||
<emphasis id="B9307575FFA89A7AFEE5FC8BFDCAFCF0" box="[281,528,770,794]" italics="true" pageId="2" pageNumber="97">Metarhachotropis parva</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B9307575FFA89A7AFDEBFC8BFDBDFCF3" bold="true" box="[535,615,770,794]" pageId="2" pageNumber="97">
|
||
<taxonomicNameLabel id="A203C80EFFA89A7AFDEBFC8BFDBDFCF3" box="[535,615,770,794]" pageId="2" pageNumber="97" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype, male, 2.1 mm (OMNH-Ar-12515). Habitus.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF3BF9EFFFA89A7AFF6BF83FFC02F81B" ID-DOI="http://doi.org/10.5281/zenodo.7087446" ID-Zenodo-Dep="7087446" httpUri="https://zenodo.org/record/7087446/files/figure.png" pageId="2" pageNumber="97" startId="2.[151,250,1974,1998]" targetBox="[173,1419,834,1937]" targetPageId="2">
|
||
<paragraph id="8BFBA967FFA89A7AFF6BF83FFC02F81B" blockId="2.[151,1437,1974,2035]" pageId="2" pageNumber="97">
|
||
<emphasis id="B9307575FFA89A7AFF6BF83FFECDF827" bold="true" box="[151,279,1974,1998]" pageId="2" pageNumber="97">FIGURE 2.</emphasis>
|
||
<taxonomicName id="4C44D2E4FFA89A7AFEDDF83FFDC1F827" authority="Ariyama & Kohtsuka, 2022" authorityName="Ariyama & Kohtsuka" authorityYear="2022" box="[289,539,1974,1998]" class="Malacostraca" family="Eusiridae" genus="Metarhachotropis" kingdom="Animalia" order="Amphipoda" pageId="2" pageNumber="97" phylum="Arthropoda" rank="species" species="parva" status="sp. nov.">
|
||
<emphasis id="B9307575FFA89A7AFEDDF83FFDC1F827" box="[289,539,1974,1998]" italics="true" pageId="2" pageNumber="97">Metarhachotropis parva</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B9307575FFA89A7AFDD9F83FFDA3F827" bold="true" box="[549,633,1974,1998]" pageId="2" pageNumber="97">
|
||
<taxonomicNameLabel id="A203C80EFFA89A7AFDD9F83FFDA3F827" box="[549,633,1974,1998]" pageId="2" pageNumber="97" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype, male, 2.1 mm (OMNH-Ar-12515) [antennae and maxilla 2], and paratype, male, 2.0 mm (OMNH-Ar-12516) [M, the remaining]. Scales: 0.05 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<caption id="DF3BF9EFFFA99A7BFF6BF85DFB39F805" ID-DOI="http://doi.org/10.5281/zenodo.7087448" ID-Zenodo-Dep="7087448" box="[151,1251,2004,2028]" httpUri="https://zenodo.org/record/7087448/files/figure.png" pageId="3" pageNumber="98" startId="3.[151,250,2004,2028]" targetBox="[190,1406,197,1970]" targetPageId="3">
|
||
<paragraph id="8BFBA967FFA99A7BFF6BF85DFB39F805" blockId="3.[151,1251,2004,2028]" box="[151,1251,2004,2028]" pageId="3" pageNumber="98">
|
||
<emphasis id="B9307575FFA99A7BFF6BF85DFEC9F805" bold="true" box="[151,275,2004,2028]" pageId="3" pageNumber="98">FIGURE 3.</emphasis>
|
||
<taxonomicName id="4C44D2E4FFA99A7BFEE5F85DFDCAF805" authority="Ariyama & Kohtsuka, 2022" authorityName="Ariyama & Kohtsuka" authorityYear="2022" box="[281,528,2004,2028]" class="Malacostraca" family="Eusiridae" genus="Metarhachotropis" kingdom="Animalia" order="Amphipoda" pageId="3" pageNumber="98" phylum="Arthropoda" rank="species" species="parva" status="sp. nov.">
|
||
<emphasis id="B9307575FFA99A7BFEE5F85DFDCAF805" box="[281,528,2004,2028]" italics="true" pageId="3" pageNumber="98">Metarhachotropis parva</emphasis>
|
||
</taxonomicName>
|
||
<emphasis id="B9307575FFA99A7BFDEBF85DFDBDF805" bold="true" box="[535,615,2004,2028]" pageId="3" pageNumber="98">
|
||
<taxonomicNameLabel id="A203C80EFFA99A7BFDEBF85DFDBDF805" box="[535,615,2004,2028]" pageId="3" pageNumber="98" rank="species">sp. nov.</taxonomicNameLabel>
|
||
</emphasis>
|
||
Holotype, male, 2.1 mm (OMNH-Ar-12515). Scales: 0.1 mm.
|
||
</paragraph>
|
||
</caption>
|
||
<paragraph id="8BFBA967FFAE9A7CFF3BFF1EFC1BFE38" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="99">
|
||
<emphasis id="B9307575FFAE9A7CFF3BFF1EFEC0FF58" bold="true" box="[199,282,151,177]" pageId="4" pageNumber="99">Pereon</emphasis>
|
||
(
|
||
<figureCitation id="137FB5E2FFAE9A7CFED2FF1EFEAEFF58" box="[302,372,151,177]" captionStart="FIGURE 3" captionStartId="3.[151,250,2004,2028]" captionTargetBox="[190,1406,197,1970]" captionTargetId="figure-17@3.[169,1419,181,1980]" captionTargetPageId="3" captionText="FIGURE 3. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515). Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.7087448" httpUri="https://zenodo.org/record/7087448/files/figure.png" pageId="4" pageNumber="99">Fig. 3</figureCitation>
|
||
).
|
||
<emphasis id="B9307575FFAE9A7CFE73FF1EFDFCFF58" box="[399,550,151,177]" italics="true" pageId="4" pageNumber="99">Gnathopod 1</emphasis>
|
||
large, poorly setose; coxa strongly projected anteroventrally; basis widened distally; merus short; carpus narrow, lobate posteriorly; propodus stout, palm oblique, smooth; dactylus curved posteriorly.
|
||
<emphasis id="B9307575FFAE9A7CFEDFFF56FE67FF10" box="[291,445,223,249]" italics="true" pageId="4" pageNumber="99">Gnathopod 2</emphasis>
|
||
also large, poorly setose; coxa pentagonal, basis–dactylus similar to gnathopod 1.
|
||
<emphasis id="B9307575FFAE9A7CFF6BFE8AFE9CFEF4" box="[151,326,259,285]" italics="true" pageId="4" pageNumber="99">Pereopods 3, 4</emphasis>
|
||
slender, weakly setose; coxae subtriangular, gill on pereopod 4 wider than that on pereopod 3; dactyli almost linear.
|
||
<emphasis id="B9307575FFAE9A7CFE7AFEAEFDDDFEA8" box="[390,519,295,321]" italics="true" pageId="4" pageNumber="99">Pereopod 5</emphasis>
|
||
about 1.2 times as long as pereopod 4, weakly setose; coxa bilobed, posterior lobe deeper; basis relatively wide, subrectagular; propodus long; dactylus almost straight.
|
||
<emphasis id="B9307575FFAE9A7CFBA4FEC2FB00FE8D" box="[1112,1242,330,357]" italics="true" pageId="4" pageNumber="99">Pereopod 6</emphasis>
|
||
about 1.05 times as long as pereopod 5, weakly setose; coxa bilobed, posterior lobe deeper; basis wide, subrectangular; propodus long; dactylus linear.
|
||
<emphasis id="B9307575FFAE9A7CFE71FE1AFDCAFE44" box="[397,528,403,429]" italics="true" pageId="4" pageNumber="99">Pereopod 7</emphasis>
|
||
ca. 1.15 times length of pereopod 6, weakly setose; coxa oval; basis expanded, posterodistal corner roundly projected; propodus long; dactylus straight.
|
||
</paragraph>
|
||
<paragraph id="8BFBA967FFAE9A7CFF3BFE52FA57FD6C" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="99">
|
||
<emphasis id="B9307575FFAE9A7CFF3BFE52FED0FE1C" bold="true" box="[199,266,475,501]" pageId="4" pageNumber="99">Pleon</emphasis>
|
||
(
|
||
<figureCitation id="137FB5E2FFAE9A7CFEE7FE52FE85FE1C" box="[283,351,475,501]" captionStart="FIGURE 4" captionStartId="4.[151,250,1971,1995]" captionTargetBox="[168,1420,972,1934]" captionTargetId="figure-330@4.[151,1436,957,1948]" captionTargetPageId="4" captionText="FIGURE 4. Metarhachotropis parva sp. nov. Holotype, male, 2.1 mm (OMNH-Ar-12515). Inner ramus of pleopod 2 lost. Scales: 0.1 mm." figureDoi="http://doi.org/10.5281/zenodo.7087450" httpUri="https://zenodo.org/record/7087450/files/figure.png" pageId="4" pageNumber="99">Fig. 4</figureCitation>
|
||
).
|
||
<emphasis id="B9307575FFAE9A7CFE8BFE52FDF1FE1C" box="[375,555,475,501]" italics="true" pageId="4" pageNumber="99">Epimeral plates</emphasis>
|
||
, posteroventral corners of plates 1, 2 angular, that of plate 3 rounded, ventral margins without setae.
|
||
<emphasis id="B9307575FFAE9A7CFE60FE76FDDEFDF0" box="[412,516,511,537]" italics="true" pageId="4" pageNumber="99">Pleopods</emphasis>
|
||
, pleopod 3 shortest; peduncles projected posterodistally, without setae; both rami short, outer rami longer than inner rami, outer and inner rami with 4 and 3 articles, respectively.
|
||
<emphasis id="B9307575FFAE9A7CFB37FDAAFAF6FDD4" box="[1227,1324,547,573]" italics="true" pageId="4" pageNumber="99">Uropods</emphasis>
|
||
relatively slender, outer rami shorter than inner rami, tips of both rami with minute embedded seta; length ratio of uropods 1–3 1:0.9:0.65.
|
||
<emphasis id="B9307575FFAE9A7CFEEBFDE2FE85FD6C" box="[279,351,619,645]" italics="true" pageId="4" pageNumber="99">Telson</emphasis>
|
||
elongate, cleft 38% of telson length; lateral margins each with long sensory seta and short seta.
|
||
</paragraph>
|
||
<paragraph id="8BFBA967FFAE9A7CFF3BFD06FE78FD40" blockId="4.[151,1437,151,933]" box="[199,418,655,681]" pageId="4" pageNumber="99">
|
||
<emphasis id="B9307575FFAE9A7CFF3BFD06FEFFFD40" bold="true" box="[199,293,655,681]" pageId="4" pageNumber="99">Female.</emphasis>
|
||
Unknown.
|
||
</paragraph>
|
||
<paragraph id="8BFBA967FFAE9A7CFF3BFD3BFF07FD18" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="99">
|
||
<emphasis id="B9307575FFAE9A7CFF3BFD3BFC8AFD25" bold="true" box="[199,848,690,717]" pageId="4" pageNumber="99">Coloration in preservative (10 months after fixation).</emphasis>
|
||
Eyes light brown. Body and appendages generally white.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35EFAECFFAE9A7CFF3BFD72FD21FC68" pageId="4" pageNumber="99" type="discussion">
|
||
<paragraph id="8BFBA967FFAE9A7CFF3BFD72FE43FCB4" blockId="4.[151,1437,151,933]" pageId="4" pageNumber="99">
|
||
<emphasis id="B9307575FFAE9A7CFF3BFD72FEE1FCFC" bold="true" box="[199,315,763,789]" pageId="4" pageNumber="99">Remarks.</emphasis>
|
||
The uropods 1 and 2 with rami each bearing only minute embedded seta on the tip are also distinctive in the family
|
||
<taxonomicName id="4C44D2E4FFAE9A7CFECCFC96FE7AFCD0" box="[304,416,799,825]" family="Eusuridae" pageId="4" pageNumber="99" rank="family">Eusuridae</taxonomicName>
|
||
<emphasis id="B9307575FFAE9A7CFE54FC96FDECFCD1" box="[424,566,799,824]" italics="true" pageId="4" pageNumber="99">sensu stricto</emphasis>
|
||
. But discussion on the relationship with the senticaudate character is beyond the scope of this paper.
|
||
</paragraph>
|
||
<paragraph id="8BFBA967FFAE9A7CFF3BFCEFFD21FC68" blockId="4.[151,1437,151,933]" box="[199,763,870,897]" pageId="4" pageNumber="99">
|
||
<emphasis id="B9307575FFAE9A7CFF3BFCEFFEF0FC69" bold="true" box="[199,298,870,896]" pageId="4" pageNumber="99">Habitat.</emphasis>
|
||
Gravel and sand bottom,
|
||
<quantity id="4CBC0482FFAE9A7CFDB7FCEFFD74FC68" box="[587,686,870,897]" metricMagnitude="1" metricUnit="m" metricValue="9.55" metricValueMax="9.6" metricValueMin="9.5" pageId="4" pageNumber="99" unit="m" value="95.5" valueMax="96.0" valueMin="95.0">95–96 m</quantity>
|
||
depth.
|
||
</paragraph>
|
||
</subSubSection>
|
||
<subSubSection id="C35EFAECFFAE9A7CFF3BFC03FD2EFC4C" box="[199,756,906,933]" pageId="4" pageNumber="99" type="distribution">
|
||
<paragraph id="8BFBA967FFAE9A7CFF3BFC03FD2EFC4C" blockId="4.[151,1437,151,933]" box="[199,756,906,933]" pageId="4" pageNumber="99">
|
||
<emphasis id="B9307575FFAE9A7CFF3BFC03FEBBFC4D" bold="true" box="[199,353,906,932]" pageId="4" pageNumber="99">Distribution.</emphasis>
|
||
<collectingCountry id="F353E9F7FFAE9A7CFE9BFC02FE71FC4C" box="[359,427,907,933]" name="Japan" pageId="4" pageNumber="99">Japan</collectingCountry>
|
||
: Sagami Bay (present study).
|
||
</paragraph>
|
||
</subSubSection>
|
||
</treatment>
|
||
</document> |