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<document id="0C2E6038B954BD37E7441A494F6FBAB0" ID-CLB-Dataset="274284" ID-DOI="10.11646/zootaxa.5357.3.2" ID-GBIF-Dataset="42881198-1e90-43d9-96cc-ec9ecd973f2e" ID-ISSN="1175-5326" ID-Zenodo-Dep="10061379" IM.bibliography_approvedBy="carolina" IM.illustrations_approvedBy="carolina" IM.materialsCitations_approvedBy="carolina" IM.metadata_approvedBy="felipe" IM.tables_approvedBy="carolina" IM.taxonomicNames_approvedBy="carolina" IM.treatmentCitations_approvedBy="felipe" IM.treatments_approvedBy="carolina" checkinTime="1697786785435" checkinUser="plazi" docAuthor="Sidorov, Dmitry" docDate="2023" docId="03A2F61CF05EFFD861B6F5C7D288300F" docLanguage="en" docName="zootaxa.5357.3.2.pdf" docOrigin="Zootaxa 5357 (3)" docSource="http://dx.doi.org/10.11646/zootaxa.5357.3.2" docStyle="DocumentStyle:647186512141C8FC8976D5BCC54AEB7D.9:Zootaxa.2013-.journal_article" docStyleId="647186512141C8FC8976D5BCC54AEB7D" docStyleName="Zootaxa.2013-.journal_article" docStyleVersion="9" docTitle="Nipponasellus sudzukhensis Sidorov 2023, spec. nov." docType="treatment" docUuid="AD104235-78DB-488B-B036-3BF5BD884D5D" docUuidSource="ZooBank" docVersion="6" lastPageNumber="358" masterDocId="FF9B8E64F057FFC86121F14DD0503576" masterDocTitle="Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context" masterLastPageNumber="374" masterPageNumber="342" pageNumber="351" updateTime="1698853424112" updateUser="ExternalLinkService" zenodo-license-document="CLOSED">
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<mods:title id="B7340F1A15933DF5B6E1F9BB523A5042">Trans-Japan Sea land-bridge disjunction: A case of vicariance in the subterranean genus Nipponasellus (Crustacea, Isopoda, Asellidae) in a largescale biogeographical context</mods:title>
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<treatment id="03A2F61CF05EFFD861B6F5C7D288300F" ID-DOI="http://doi.org/10.5281/zenodo.10063688" ID-GBIF-Taxon="214245315" ID-Zenodo-Dep="10063688" LSID="urn:lsid:zoobank.org:act:AD104235-78DB-488B-B036-3BF5BD884D5D" httpUri="http://treatment.plazi.org/id/03A2F61CF05EFFD861B6F5C7D288300F" lastPageId="16" lastPageNumber="358" pageId="9" pageNumber="351">
<subSubSection id="C3111481F05EFFC161B6F5C7D23C31D3" box="[151,620,1162,1189]" pageId="9" pageNumber="351" type="nomenclature">
<paragraph id="8BB4470AF05EFFC161B6F5C7D23C31D3" blockId="9.[151,620,1162,1226]" box="[151,620,1162,1189]" pageId="9" pageNumber="351">
<heading id="D0FCF066F05EFFC161B6F5C7D23C31D3" bold="true" box="[151,620,1162,1189]" fontSize="11" level="1" pageId="9" pageNumber="351" reason="1">
<emphasis id="B97F9B18F05EFFC161B6F5C7D23C31D3" bold="true" box="[151,620,1162,1189]" pageId="9" pageNumber="351">
<taxonomicName id="4C0B3C89F05EFFC161B6F5C7D1BC31D3" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[151,492,1162,1189]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F05EFFC161B6F5C7D1BC31D3" bold="true" box="[151,492,1162,1189]" italics="true" pageId="9" pageNumber="351">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A24C2663F05EFFC160D5F5C6D23C31D3" box="[500,620,1163,1189]" pageId="9" pageNumber="351" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
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<subSubSection id="C3111481F05EFFC161B6F5E2D21E31BF" box="[151,590,1199,1226]" pageId="9" pageNumber="351" type="description">
<paragraph id="8BB4470AF05EFFC161B6F5E2D21E31BF" blockId="9.[151,620,1162,1226]" box="[151,590,1199,1226]" pageId="9" pageNumber="351">
<figureCitation id="13305B8FF05EFFC161B6F5E2D14431BF" box="[151,276,1199,1225]" captionStart="FIGURE 4" captionStartId="10.[151,250,1737,1761]" captionTargetBox="[165,1423,185,1707]" captionTargetId="figure-16@10.[159,1429,181,1713]" captionTargetPageId="10" captionText="FIGURE 4. Habitus of examined specimens: (A, B) Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.5 mm, dorsal view (A); lateral view (B). (C, D) Nipponasellus matsumotoi spec. nov., holotype X54659/Cr-2477-FEFU, male, 5.0 mm, dorsal view (C); lateral view (D)." figureDoi="http://doi.org/10.5281/zenodo.10061391" httpUri="https://zenodo.org/record/10061391/files/figure.png" pageId="9" pageNumber="351">Figs 4A, B</figureCitation>
,
<figureCitation id="13305B8FF05EFFC1603EF5E2D13631BC" box="[287,358,1199,1226]" captionStart="FIGURE 5" captionStartId="11.[151,250,1943,1967]" captionTargetBox="[181,1406,185,1913]" captionTargetId="figure-17@11.[175,1412,181,1919]" captionTargetPageId="11" captionText="FIGURE 5. Head features in dorsal, lateral, ventral and anterior oblique views (maxilliped removed): (AD) Nipponasellus sudzukhensis spec. nov., paratype X54658/Cr-2476-FEFU, female, 5.0 mm; (EH) Nipponasellus matsumotoi spec. nov., paratype X54660/Cr-2478-FEFU, female, 4.2 mm." figureDoi="http://doi.org/10.5281/zenodo.10061394" httpUri="https://zenodo.org/record/10061394/files/figure.png" pageId="9" pageNumber="351">5AD</figureCitation>
,
<figureCitation id="13305B8FF05EFFC16053F5E2D1CE31BF" box="[370,414,1199,1225]" captionStart-0="FIGURE 6" captionStart-1="FIGURE 7" captionStart-2="FIGURE 8" captionStart-3="FIGURE 9" captionStartId-0="12.[151,250,1740,1764]" captionStartId-1="13.[151,250,1907,1931]" captionStartId-2="14.[151,250,1397,1421]" captionStartId-3="15.[151,250,1628,1652]" captionTargetBox-0="[157,1429,187,1710]" captionTargetBox-1="[157,1431,424,1878]" captionTargetBox-2="[157,1429,187,1367]" captionTargetBox-3="[151,1436,503,1582]" captionTargetId-0="figure-16@12.[151,1435,181,1716]" captionTargetId-1="figure-124@13.[151,1435,417,1884]" captionTargetId-2="figure-16@14.[151,1435,181,1373]" captionTargetId-3="figure-190@15.[151,1436,503,1582]" captionTargetPageId-0="12" captionTargetPageId-1="13" captionTargetPageId-2="14" captionTargetPageId-3="15" captionText-0="FIGURE 6. Nipponasellussudzukhensis spec.nov., holotype X54657/Cr-2475-FEFU, male,5.0 mm:(A) antennula; (B)antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped." captionText-1="FIGURE 7. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pereopod 1, with enlarged palm; (B) pereopod 2; (C) pereopod 3; (D) pereopod 4; (E) pereopod 5; (F) pereopod 6; (G) pereopod 7." captionText-2="FIGURE 8. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (g.p., genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2." captionText-3="FIGURE 9. Scanning electron micrographs of pleopod 2 of Nipponasellus sudzukhensis spec. nov., adult male: (A) pair of pleopods 2, ventral view; (B) endopodite of pleopod 2, right; (C, D) appendix masculina enlarged, right and left." figureDoi-0="http://doi.org/10.5281/zenodo.10061396" figureDoi-1="http://doi.org/10.5281/zenodo.10061398" figureDoi-2="http://doi.org/10.5281/zenodo.10061400" figureDoi-3="http://doi.org/10.5281/zenodo.10061402" httpUri-0="https://zenodo.org/record/10061396/files/figure.png" httpUri-1="https://zenodo.org/record/10061398/files/figure.png" httpUri-2="https://zenodo.org/record/10061400/files/figure.png" httpUri-3="https://zenodo.org/record/10061402/files/figure.png" pageId="9" pageNumber="351">69</figureCitation>
, ESupplement4
</paragraph>
</subSubSection>
<subSubSection id="C3111481F05EFFC161B6F5BCD1D23090" pageId="9" pageNumber="351" type="diagnosis">
<paragraph id="8BB4470AF05EFFC161B6F5BCD1D23090" blockId="9.[151,1437,1265,2012]" pageId="9" pageNumber="351">
<emphasis id="B97F9B18F05EFFC161B6F5BCD1F8307D" bold="true" box="[151,424,1265,1291]" pageId="9" pageNumber="351">Diagnosis (both sexes):</emphasis>
Body flattened dorsoventrally, lateral margins subparallel, lateral expansion of pereonites 17 and pleotelson colored with a light brown semitransparent rim. Head sub-trapezoidal, about as long as broad. Dorsal and ventral surface of body, and limbs covered with minute scales of irregular shape. Eyes absent. Antennula length ca. 50% of antennal podomeres length. Antenna length ca. 60% of total body length. Pereopods 17 slightly increasing in length towards posterior pairs (except pereopod 4, somewhat slender). Pleopod 2 endopodite in males of primitive
<typeStatus id="54B0F9A8F05EFFC16008F4EBD10D30B6" box="[297,349,1446,1472]" pageId="9" pageNumber="351">type</typeStatus>
. Uropod short, about half length of pleotelson. Color creamy white. Body length 4.66.0 mm (
<specimenCount id="9D0D8C83F05EFFC16183F487D09A3092" box="[162,202,1482,1508]" pageId="9" pageNumber="351" type="female">♀♀</specimenCount>
),
<quantity id="4CF3EAEFF05EFFC161C3F484D1683092" box="[226,312,1481,1508]" metricMagnitude="-3" metricUnit="m" metricValue="5.5" pageId="9" pageNumber="351" unit="mm" value="5.5">5.5 mm</quantity>
(♁♁).
</paragraph>
</subSubSection>
<subSubSection id="C3111481F05EFFC161E6F4A3D5D23275" pageId="9" pageNumber="351" type="etymology">
<paragraph id="8BB4470AF05EFFC161E6F4A3D24F335D" blockId="9.[151,1437,1265,2012]" pageId="9" pageNumber="351">
<emphasis id="B97F9B18F05EFFC161E6F4A3D102337E" bold="true" box="[199,338,1518,1544]" pageId="9" pageNumber="351">Etymology:</emphasis>
Species named
<taxonomicName id="4C0B3C89F05EFFC1632CF4A0D2CF3371" authority="(Latin)" authorityName="Sidorov" authorityYear="2023" baseAuthorityName="Latin" box="[525,671,1517,1543]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="species" species="sudzukhensis">
<emphasis id="B97F9B18F05EFFC1632CF4A0D2CF3371" box="[525,671,1517,1543]" italics="true" pageId="9" pageNumber="351">sudzukhensis</emphasis>
</taxonomicName>
(Latin), an adjective that refers to the Sudzukhe River (known today as Kievka), where it was collected.
</paragraph>
<paragraph id="8BB4470AF05EFFC161E6F778D5D23275" blockId="9.[151,1437,1265,2012]" pageId="9" pageNumber="351">
<emphasis id="B97F9B18F05EFFC161E6F778D2443339" bold="true" box="[199,532,1589,1616]" pageId="9" pageNumber="351">
Bionomics (see map,
<figureCitation id="13305B8FF05EFFC1609EF778D2523339" box="[447,514,1589,1615]" captionStart="FIGURE 1" captionStartId="3.[151,250,1946,1970]" captionTargetBox="[157,1430,855,1917]" captionTargetId="figure-329@3.[151,1435,849,1923]" captionTargetPageId="3" captionText="FIGURE 1. Height map of the Japanese continental margin arc system showing distribution of the genus Nipponasellus in East Asia, with position of the phreatic sampling sites. Each point may represent 13 closely adjacent localities (for further explanation, see text)." figureDoi="http://doi.org/10.5281/zenodo.10061381" httpUri="https://zenodo.org/record/10061381/files/figure.png" pageId="9" pageNumber="351">Fig. 1</figureCitation>
):
</emphasis>
<taxonomicName id="4C0B3C89F05EFFC1633BF778D3033339" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[538,851,1589,1615]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F05EFFC1633BF778D3033339" box="[538,851,1589,1615]" italics="true" pageId="9" pageNumber="351">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
,
<emphasis id="B97F9B18F05EFFC16241F77BD3823326" bold="true" box="[864,978,1590,1616]" pageId="9" pageNumber="351">
<taxonomicNameLabel id="A24C2663F05EFFC16241F77BD3823326" box="[864,978,1590,1616]" pageId="9" pageNumber="351" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
is a phreatobite that lives in groundwater near the confluence of the Lazovka, Kievka and Pasechnaya Rivers in the foothills of the southwestern slope of the Sikhote-Alin Ridge. Known only from the
<typeStatus id="54B0F9A8F05EFFC163A3F733D2E233EE" box="[642,690,1662,1688]" pageId="9" pageNumber="351">type</typeStatus>
locality. Ecology is mostly unknown, but it was accompanied by the following stygobiont fauna:
<taxonomicName id="4C0B3C89F05EFFC16320F7ECD20233CD" authorityName="E. L. Geoffroy" authorityYear="1762" box="[513,594,1697,1723]" class="Malacostraca" family="Asellidae" genus="Asellus" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="genus">
<emphasis id="B97F9B18F05EFFC16320F7ECD20233CD" box="[513,594,1697,1723]" italics="true" pageId="9" pageNumber="351">Asellus</emphasis>
</taxonomicName>
<taxonomicName id="4C0B3C89F05EFFC1637BF7EFD46A33CA" authority="Henry &amp; Magniez, 1993" authorityName="Henry &amp; Magniez" authorityYear="1993" box="[602,1082,1697,1724]" class="Malacostraca" family="Asellidae" genus="Asellus" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="species" species="primoryensis" subGenus="Arctasellus">
(
<emphasis id="B97F9B18F05EFFC16342F7EFD22433CA" box="[611,628,1698,1724]" italics="true" pageId="9" pageNumber="351">A</emphasis>
.)
<emphasis id="B97F9B18F05EFFC163ADF7EFD34E33CD" box="[652,798,1698,1723]" italics="true" pageId="9" pageNumber="351">primoryensis</emphasis>
<bibRefCitation id="EF9A3AFBF05EFFC16207F7EFD46A33CA" author="Henry, J. - P. &amp; Magniez, G." box="[806,1082,1697,1724]" pageId="9" pageNumber="351" pagination="179 - 191" refId="ref17079" refString="Henry, J. - P. &amp; Magniez, G. (1993) Presence d'Asellus stygobies (Crustacea, Isopoda, Aselloidea) dans la region du Primorye, Siberie sud-orientale. Bijdragen tot de Dierkunde, 62, 179 - 191. https: // doi. org / 10.1163 / 26660644 - 06203003" type="journal article" year="1993">Henry &amp; Magniez, 1993</bibRefCitation>
</taxonomicName>
(
<taxonomicName id="4C0B3C89F05EFFC16568F7ECD4F633CD" authorityName="Latreille" authorityYear="1817" box="[1097,1190,1697,1723]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="order">Isopoda</taxonomicName>
,
<taxonomicName id="4C0B3C89F05EFFC16590F7ECD54F33CD" authorityName="Rafinesque-Schmaltz" authorityYear="1815" box="[1201,1311,1697,1723]" class="Malacostraca" family="Asellidae" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="family">Asellidae</taxonomicName>
),
<taxonomicName id="4C0B3C89F05EFFC16413F7ECD0E73396" class="Malacostraca" family="Janiridae" genus="Mackinia" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="species" species="undetermined">
<emphasis id="B97F9B18F05EFFC16413F7ECD5CC33CD" box="[1330,1436,1697,1723]" italics="true" pageId="9" pageNumber="351">Mackinia</emphasis>
sp.
</taxonomicName>
(
<taxonomicName id="4C0B3C89F05EFFC161E7F788D17333A9" authorityName="Latreille" authorityYear="1817" box="[198,291,1733,1759]" class="Arachnida" higherTaxonomySource="GBIF" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="order">Isopoda</taxonomicName>
,
<taxonomicName id="4C0B3C89F05EFFC1600FF788D1C833A9" authorityName="G. O. Sars" authorityYear="1897" box="[302,408,1733,1759]" class="Malacostraca" family="Janiridae" kingdom="Animalia" order="Isopoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="family">Janiridae</taxonomicName>
),
<taxonomicName id="4C0B3C89F05EFFC1608BF788D3243396" authority="Sidorov, 2012" authorityName="Sidorov" authorityYear="2012" box="[426,884,1733,1760]" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="species" species="kseniae">
<emphasis id="B97F9B18F05EFFC1608BF788D29E33A9" box="[426,718,1733,1759]" italics="true" pageId="9" pageNumber="351">Pseudocrangonyx kseniae</emphasis>
Sidorov, 2012
</taxonomicName>
, and
<taxonomicName id="4C0B3C89F05EFFC1628FF78BD5CC3396" authority="Sidorov &amp; Gontcharov, 2013" authorityName="Sidorov &amp; Gontcharov" authorityYear="2013" box="[942,1436,1733,1760]" class="Malacostraca" family="Pseudocrangonyctidae" genus="Pseudocrangonyx" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="species" species="sympatricus">
<emphasis id="B97F9B18F05EFFC1628FF78BD40133A9" box="[942,1105,1734,1759]" italics="true" pageId="9" pageNumber="351">P. sympatricus</emphasis>
Sidorov &amp; Gontcharov, 2013
</taxonomicName>
(
<taxonomicName id="4C0B3C89F05EFFC161BEF7A4D1783275" box="[159,296,1769,1795]" class="Malacostraca" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="order">Amphipoda</taxonomicName>
,
<taxonomicName id="4C0B3C89F05EFFC16012F7A4D2643275" authorityName="Holsinger" authorityYear="1989" box="[307,564,1769,1795]" class="Malacostraca" family="Pseudocrangonyctidae" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="family">Pseudocrangonyctidae</taxonomicName>
),
<taxonomicName id="4C0B3C89F05EFFC16367F7A7D2963275" authorityName="Miers" authorityYear="1875" box="[582,710,1770,1795]" class="Malacostraca" family="Pontogeneiidae" genus="Paramoera" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="genus">
<emphasis id="B97F9B18F05EFFC16367F7A7D2963275" box="[582,710,1770,1795]" italics="true" pageId="9" pageNumber="351">Paramoera</emphasis>
</taxonomicName>
(
<emphasis id="B97F9B18F05EFFC163F7F7A7D2BA3272" box="[726,746,1770,1796]" italics="true" pageId="9" pageNumber="351">G</emphasis>
.)
<emphasis id="B97F9B18F05EFFC16220F7A4D32D3275" box="[769,893,1769,1795]" italics="true" pageId="9" pageNumber="351">myslenkovi</emphasis>
Sidorov, 2010 (
<taxonomicName id="4C0B3C89F05EFFC16511F7A4D4E93275" box="[1072,1209,1769,1795]" class="Malacostraca" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="order">Amphipoda</taxonomicName>
,
<taxonomicName id="4C0B3C89F05EFFC165E5F7A4D5263275" authorityName="Stebbing" authorityYear="1906" box="[1220,1398,1769,1795]" class="Malacostraca" family="Pontogeneiidae" kingdom="Animalia" order="Amphipoda" pageId="9" pageNumber="351" phylum="Arthropoda" rank="family">Pontogeneiidae</taxonomicName>
).
</paragraph>
</subSubSection>
<subSubSection id="C3111481F05EFFC161E6F640D32432AD" pageId="9" pageNumber="351" type="materials_examined">
<paragraph id="8BB4470AF05EFFC161E6F640D32432AD" blockId="9.[151,1437,1265,2012]" pageId="9" pageNumber="351">
<emphasis id="B97F9B18F05EFFC161E6F640D1E73251" bold="true" box="[199,439,1805,1831]" pageId="9" pageNumber="351">Material examined:</emphasis>
<materialsCitation id="3B634D57F05EFFC160E3F640D23532E5" ID-GBIF-Occurrence="4429533306" collectingDate="2009-08-03" collectionCode="FEFU" collectorName="D. Sidorov &amp; K. Semenchenko" country="Russia" county="Lazovsky District" elevation="217" latitude="43.369335" location="Kievka River" longLatPrecision="1" longitude="133.92474" municipality="Kievka River" pageId="9" pageNumber="351" specimenCount="1" stateProvince="Primorsky Krai" typeStatus="holotype">
<emphasis id="B97F9B18F05EFFC160E3F640D2793251" box="[450,553,1805,1831]" italics="true" pageId="9" pageNumber="351">
<typeStatus id="54B0F9A8F05EFFC160E3F640D2793251" box="[450,553,1805,1831]" pageId="9" pageNumber="351">Holotype</typeStatus>
</emphasis>
: male,
<quantity id="4CF3EAEFF05EFFC163A5F640D2B0325E" box="[644,736,1805,1832]" metricMagnitude="-3" metricUnit="m" metricValue="5.5" pageId="9" pageNumber="351" unit="mm" value="5.5">5.5 mm</quantity>
, X54657/Cr-2475-FEFU,
<collectingCountry id="F31C079AF05EFFC1652EF640D40D3251" box="[1039,1117,1805,1831]" name="Russia" pageId="9" pageNumber="351">Russia</collectingCountry>
,
<collectingRegion id="49CF89E8F05EFFC1654DF640D5703251" box="[1132,1312,1805,1831]" country="Russia" name="Primorskiy" pageId="9" pageNumber="351">Primorsky Krai</collectingRegion>
,
<collectingCounty id="62D53F86F05EFFC1640EF640D0BE323D" pageId="9" pageNumber="351">Lazovsky District</collectingCounty>
, ca.
<locationDeviation id="9A065E28F05EFFC16007F67FD1B3323A" box="[294,483,1841,1868]" location="Lazo" pageId="9" pageNumber="351">
<quantity id="4CF3EAEFF05EFFC16007F67FD132323D" box="[294,354,1841,1868]" metricMagnitude="3" metricUnit="m" metricValue="3.0" pageId="9" pageNumber="351" unit="km" value="3.0">3 km</quantity>
E of Lazo
</locationDeviation>
,
<collectingMunicipality id="6BD0DD70F05EFFC160D0F67CD2DA323D" box="[497,650,1841,1867]" pageId="9" pageNumber="351">Kievka River</collectingMunicipality>
(Code: 3Lazo),
<geoCoordinate id="EE3F21CDF05EFFC1626AF67CD3B4323A" box="[843,996,1841,1868]" degrees="43" direction="north" minutes="22.160" orientation="latitude" pageId="9" pageNumber="351" precision="1" value="43.369335">43°22.160 N</geoCoordinate>
<geoCoordinate id="EE3F21CDF05EFFC162CFF67CD4C3323A" box="[1006,1171,1841,1868]" degrees="133" direction="east" minutes="55.485" orientation="longitude" pageId="9" pageNumber="351" precision="1" value="133.92474">133°55.485 E</geoCoordinate>
(altitude
<elevation id="0026A039F05EFFC16425F67FD5DC323D" box="[1284,1420,1841,1868]" metricMagnitude="2" metricUnit="m" metricValue="2.17" pageId="9" pageNumber="351" unit="m" value="217.0">
<quantity id="4CF3EAEFF05EFFC16425F67FD51E323A" box="[1284,1358,1842,1868]" metricMagnitude="2" metricUnit="m" metricValue="2.17" pageId="9" pageNumber="351" unit="m" value="217.0">217 m</quantity>
a.s.l.
</elevation>
), groundwaters,
<quantity id="4CF3EAEFF05EFFC1601CF61BD12D3206" box="[317,381,1878,1904]" metricMagnitude="0" metricUnit="m" metricValue="1.2" pageId="9" pageNumber="351" unit="m" value="1.2">1.2 m</quantity>
depth, rocks, pebbles, fine-grained sand, detritus, woody debris, riffle, steep riverbank,
<date id="FFB561CAF05EFFC16473F61BD08232E2" pageId="9" pageNumber="351" value="2009-08-03">
<collectingDate id="EFF19822F05EFFC16473F61BD08232E2" pageId="9" pageNumber="351" value="2009-08-03">3 Aug. 2009</collectingDate>
</date>
, coll.
<collectorName id="26FE22DCF05EFFC16037F637D1C232E5" box="[278,402,1913,1940]" pageId="9" pageNumber="351">D. Sidorov</collectorName>
,
<collectorName id="26FE22DCF05EFFC160BCF637D23132E5" box="[413,609,1913,1940]" pageId="9" pageNumber="351">K. Semenchenko</collectorName>
.
</materialsCitation>
<materialsCitation id="3B634D57F05EFFC1634AF637D51432E2" ID-GBIF-Occurrence="4429533305" box="[619,1348,1913,1940]" pageId="9" pageNumber="351" specimenCount="29" specimenCount-female="11" specimenCount-juvenile="18" typeStatus="paratype">
<emphasis id="B97F9B18F05EFFC1634AF637D28D32E5" box="[619,733,1914,1939]" italics="true" pageId="9" pageNumber="351">
<typeStatus id="54B0F9A8F05EFFC1634AF637D28D32E5" box="[619,733,1914,1939]" pageId="9" pageNumber="351">Paratypes</typeStatus>
</emphasis>
:
<specimenCount id="9D0D8C83F05EFFC163CDF637D33532E5" box="[748,869,1913,1940]" count="11" pageId="9" pageNumber="351" type="female">11 females</specimenCount>
(2 6.0 mm, 9
<quantity id="4CF3EAEFF05EFFC16525F634D40E32E2" box="[1028,1118,1913,1940]" metricMagnitude="-3" metricUnit="m" metricValue="4.6" pageId="9" pageNumber="351" unit="mm" value="4.6">4.6 mm</quantity>
),
<specimenCount id="9D0D8C83F05EFFC16550F637D4EE32E5" box="[1137,1214,1913,1940]" count="18" pageId="9" pageNumber="351" type="juvenile">18 juv.</specimenCount>
ca.
<quantity id="4CF3EAEFF05EFFC165CDF634D51432E2" box="[1260,1348,1913,1940]" metricMagnitude="-3" metricUnit="m" metricValue="2.5" pageId="9" pageNumber="351" unit="mm" value="2.5">2.5 mm</quantity>
</materialsCitation>
,
<materialsCitation id="3B634D57F05EFFC16471F634D36432C1" ID-GBIF-Occurrence="4429533302" collectingDate="2009-08-03" collectionCode="FEFU, SEM" collectorName="D. Sidorov &amp; Sidorov, K." country="Russia" county="Lazovsky District" elevation="217" latitude="43.369335" location="Code" longLatPrecision="1" longitude="133.92474" municipality="Kievka River" pageId="9" pageNumber="351" specimenCount="16" stateProvince="Primorskiy" typeStatus="paratype">
<specimenCount id="9D0D8C83F05EFFC16471F634D5CD32E5" box="[1360,1437,1913,1939]" count="16" pageId="9" pageNumber="351" type="generic">16 juv.</specimenCount>
ca.
<quantity id="4CF3EAEFF05EFFC1619CF6D0D14432CE" box="[189,276,1949,1976]" metricMagnitude="-3" metricUnit="m" metricValue="1.5" pageId="9" pageNumber="351" unit="mm" value="1.5">1.5 mm</quantity>
, X54658/Cr-2476-FEFU, same data as holotype.
</materialsCitation>
<emphasis id="B97F9B18F05EFFC1621BF6D0D3AF32CE" box="[826,1023,1949,1976]" italics="true" pageId="9" pageNumber="351">
Material for
<collectionCode id="ED1ADFCFF05EFFC162E8F6D3D3AF32CE" box="[969,1023,1950,1976]" pageId="9" pageNumber="351">SEM</collectionCode>
</emphasis>
: Male
<quantity id="4CF3EAEFF05EFFC1656CF6D0D4F432CE" box="[1101,1188,1949,1976]" metricMagnitude="-3" metricUnit="m" metricValue="5.5" pageId="9" pageNumber="351" unit="mm" value="5.5">5.5 mm</quantity>
, female 5.0 mm, same data as
<typeStatus id="54B0F9A8F05EFFC161CAF68CD11D32AD" box="[235,333,1985,2011]" pageId="9" pageNumber="351">holotype</typeStatus>
(extra specimen, not included to the type series).
</paragraph>
</subSubSection>
<caption id="DF741782F05DFFC261B6F784D2D1325F" ID-DOI="http://doi.org/10.5281/zenodo.10061391" ID-Zenodo-Dep="10061391" httpUri="https://zenodo.org/record/10061391/files/figure.png" pageId="10" pageNumber="352" startId="10.[151,250,1737,1761]" targetBox="[165,1423,185,1707]" targetPageId="10" targetType="figure">
<paragraph id="8BB4470AF05DFFC261B6F784D2D1325F" blockId="10.[151,1437,1737,1833]" pageId="10" pageNumber="352">
<emphasis id="B97F9B18F05DFFC261B6F784D15D3397" bold="true" box="[151,269,1737,1761]" pageId="10" pageNumber="352">FIGURE 4</emphasis>
. Habitus of examined specimens: (A, B)
<taxonomicName id="4C0B3C89F05DFFC2638EF784D39A3397" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[687,970,1737,1761]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="10" pageNumber="352" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F05DFFC2638EF784D39A3397" box="[687,970,1737,1761]" italics="true" pageId="10" pageNumber="352">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F05DFFC262F1F784D4673397" bold="true" box="[976,1079,1737,1761]" pageId="10" pageNumber="352">
<taxonomicNameLabel id="A24C2663F05DFFC262F1F784D4673397" box="[976,1079,1737,1761]" pageId="10" pageNumber="352" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, holotype X54657/Cr-2475-FEFU, male, 5.5 mm, dorsal view (A); lateral view (B). (C, D)
<taxonomicName id="4C0B3C89F05DFFC263E3F7A0D39E3273" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[706,974,1773,1797]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="10" pageNumber="352" phylum="Arthropoda" rank="species" species="matsumotoi" status="spec. nov.">
<emphasis id="B97F9B18F05DFFC263E3F7A0D39E3273" box="[706,974,1773,1797]" italics="true" pageId="10" pageNumber="352">Nipponasellus matsumotoi</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F05DFFC262F2F7A0D4693273" bold="true" box="[979,1081,1773,1797]" pageId="10" pageNumber="352">
<taxonomicNameLabel id="A24C2663F05DFFC262F2F7A0D4693273" box="[979,1081,1773,1797]" pageId="10" pageNumber="352" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, holotype X54659/Cr-2477-FEFU, male, 5.0 mm, dorsal view (C); lateral view (D).
</paragraph>
</caption>
<caption id="DF741782F05CFFC361B6F6DAD2CB3281" ID-DOI="http://doi.org/10.5281/zenodo.10061394" ID-Zenodo-Dep="10061394" httpUri="https://zenodo.org/record/10061394/files/figure.png" pageId="11" pageNumber="353" startId="11.[151,250,1943,1967]" targetBox="[181,1406,185,1913]" targetPageId="11" targetType="figure">
<paragraph id="8BB4470AF05CFFC361B6F6DAD2CB3281" blockId="11.[151,1436,1943,2040]" pageId="11" pageNumber="353">
<emphasis id="B97F9B18F05CFFC361B6F6DAD15F32C6" bold="true" box="[151,271,1943,1968]" pageId="11" pageNumber="353">FIGURE 5</emphasis>
. Head features in dorsal, lateral, ventral and anterior oblique views (maxilliped removed): (AD)
<taxonomicName id="4C0B3C89F05CFFC3642AF6D5D14B32A2" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="11" pageNumber="353" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F05CFFC3642AF6D5D14B32A2" italics="true" pageId="11" pageNumber="353">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F05CFFC36007F6F1D1C232A2" bold="true" box="[294,402,1980,2004]" pageId="11" pageNumber="353">
<taxonomicNameLabel id="A24C2663F05CFFC36007F6F1D1C232A2" box="[294,402,1980,2004]" pageId="11" pageNumber="353" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, paratype X54658/Cr-2476-FEFU, female, 5.0 mm; (EH)
<taxonomicName id="4C0B3C89F05CFFC3652CF6F1D54F32A5" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[1037,1311,1980,2004]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="11" pageNumber="353" phylum="Arthropoda" rank="species" species="matsumotoi" status="spec. nov.">
<emphasis id="B97F9B18F05CFFC3652CF6F1D54F32A5" box="[1037,1311,1980,2004]" italics="true" pageId="11" pageNumber="353">Nipponasellus matsumotoi</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F05CFFC3640BF6F1D5C532A2" bold="true" box="[1322,1429,1980,2004]" pageId="11" pageNumber="353">
<taxonomicNameLabel id="A24C2663F05CFFC3640BF6F1D5C532A2" box="[1322,1429,1980,2004]" pageId="11" pageNumber="353" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, paratype X54660/Cr-2478-FEFU, female, 4.2 mm.
</paragraph>
</caption>
<caption id="DF741782F05BFFC461B6F781D531327E" ID-DOI="http://doi.org/10.5281/zenodo.10061396" ID-Zenodo-Dep="10061396" httpUri="https://zenodo.org/record/10061396/files/figure.png" pageId="12" pageNumber="354" startId="12.[151,250,1740,1764]" targetBox="[157,1429,187,1710]" targetPageId="12" targetType="figure">
<paragraph id="8BB4470AF05BFFC461B6F781D531327E" blockId="12.[151,1436,1740,1801]" pageId="12" pageNumber="354">
<emphasis id="B97F9B18F05BFFC461B6F781D15B3392" bold="true" box="[151,267,1740,1764]" pageId="12" pageNumber="354">FIGURE 6</emphasis>
.
<taxonomicName id="4C0B3C89F05BFFC46034F781D27D3392" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[277,557,1740,1764]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="12" pageNumber="354" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F05BFFC46034F781D27D3392" box="[277,557,1740,1764]" italics="true" pageId="12" pageNumber="354">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F05BFFC46313F780D2C63393" bold="true" box="[562,662,1741,1765]" pageId="12" pageNumber="354">
<taxonomicNameLabel id="A24C2663F05BFFC46313F780D2C63393" box="[562,662,1741,1765]" pageId="12" pageNumber="354" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) antennula; (B) antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped.
</paragraph>
</caption>
<subSubSection id="C3111481F05BFFD861E6F617D288300F" lastPageId="16" lastPageNumber="358" pageId="12" pageNumber="354" type="description">
<paragraph id="8BB4470AF05BFFC561E6F617D2A334FF" blockId="12.[151,1437,1882,2017]" lastBlockId="13.[151,1436,151,393]" lastPageId="13" lastPageNumber="355" pageId="12" pageNumber="354">
<emphasis id="B97F9B18F05BFFC461E6F617D4553202" bold="true" box="[199,1029,1882,1909]" pageId="12" pageNumber="354">
Description (
<typeStatus id="54B0F9A8F05BFFC46043F617D19A3202" box="[354,458,1882,1908]" pageId="12" pageNumber="354">holotype</typeStatus>
X54657/Cr-2475 and specimen used for SEM):
</emphasis>
<emphasis id="B97F9B18F05BFFC4652FF616D4183203" box="[1038,1096,1883,1909]" italics="true" pageId="12" pageNumber="354">Body</emphasis>
(
<figureCitation id="13305B8FF05BFFC46579F616D48A3203" box="[1112,1242,1883,1909]" captionStart="FIGURE 4" captionStartId="10.[151,250,1737,1761]" captionTargetBox="[165,1423,185,1707]" captionTargetId="figure-16@10.[159,1429,181,1713]" captionTargetPageId="10" captionText="FIGURE 4. Habitus of examined specimens: (A, B) Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.5 mm, dorsal view (A); lateral view (B). (C, D) Nipponasellus matsumotoi spec. nov., holotype X54659/Cr-2477-FEFU, male, 5.0 mm, dorsal view (C); lateral view (D)." figureDoi="http://doi.org/10.5281/zenodo.10061391" httpUri="https://zenodo.org/record/10061391/files/figure.png" pageId="12" pageNumber="354">Figs 4A, B</figureCitation>
,
<figureCitation id="13305B8FF05BFFC465C6F617D57D3203" box="[1255,1325,1882,1909]" captionStart="FIGURE 5" captionStartId="11.[151,250,1943,1967]" captionTargetBox="[181,1406,185,1913]" captionTargetId="figure-17@11.[175,1412,181,1919]" captionTargetPageId="11" captionText="FIGURE 5. Head features in dorsal, lateral, ventral and anterior oblique views (maxilliped removed): (AD) Nipponasellus sudzukhensis spec. nov., paratype X54658/Cr-2476-FEFU, female, 5.0 mm; (EH) Nipponasellus matsumotoi spec. nov., paratype X54660/Cr-2478-FEFU, female, 4.2 mm." figureDoi="http://doi.org/10.5281/zenodo.10061394" httpUri="https://zenodo.org/record/10061394/files/figure.png" pageId="12" pageNumber="354">5AD</figureCitation>
) elongate and flattened dorsoventrally, ca. 4.6 times longer as wide, lateral margins subparallel to each other and bearing fine simple setae; color creamy white in alcohol;
<emphasis id="B97F9B18F05BFFC463CAF6EED37132CB" box="[747,801,1955,1981]" italics="true" pageId="12" pageNumber="354">head</emphasis>
sub-trapezoidal with frontal margin concave, without posterolateral expansion, about as long as broad, post-mandibular lobes blunt, each with 3 setae; lateral expansion of
<emphasis id="B97F9B18F05AFFC561B6F1DAD16C35C7" box="[151,316,151,177]" italics="true" pageId="13" pageNumber="355">pereonites 17</emphasis>
rounded, colored with a light brown semitransparent rim, each with 2 stiff setae dorsally, pereonites 14 directed slightly anteriorly, pereonite 5 with evenly rounded lateral margins, pereonites 6 and 7 sub-similar, with slightly concave distal margins, pereonite 7 the longest;
<emphasis id="B97F9B18F05AFFC56264F192D39B358F" box="[837,971,223,249]" italics="true" pageId="13" pageNumber="355">coxopodites</emphasis>
well developed, margins not visible from above;
<emphasis id="B97F9B18F05AFFC561CDF04ED17A346B" box="[236,298,259,285]" italics="true" pageId="13" pageNumber="355">pleon</emphasis>
2-segmented;
<emphasis id="B97F9B18F05AFFC560F4F04ED218346B" box="[469,584,259,285]" italics="true" pageId="13" pageNumber="355">pleotelson</emphasis>
oblong, ca. 0.3 times longer as wide and 25% of total body length, with median convexity on posterior margin, lateral margins evenly rounded, setiferous; paired
<emphasis id="B97F9B18F05AFFC565BDF06AD5123437" box="[1180,1346,295,321]" italics="true" pageId="13" pageNumber="355">genital papilla</emphasis>
located sub-laterally on sternite of pereonite 7, rather large, a little longer than protopodite of pleopod 1;
<emphasis id="B97F9B18F05AFFC565F3F006D5CC3413" box="[1234,1436,331,357]" italics="true" pageId="13" pageNumber="355">sternal epithelium</emphasis>
(blisters) on ventral surface of pereonites 17 present.
</paragraph>
<caption id="DF741782F05AFFC561B6F63ED54432D9" ID-DOI="http://doi.org/10.5281/zenodo.10061398" ID-Zenodo-Dep="10061398" httpUri="https://zenodo.org/record/10061398/files/figure.png" pageId="13" pageNumber="355" startId="13.[151,250,1907,1931]" targetBox="[157,1431,424,1878]" targetPageId="13" targetType="figure">
<paragraph id="8BB4470AF05AFFC561B6F63ED54432D9" blockId="13.[151,1436,1907,1967]" pageId="13" pageNumber="355">
<emphasis id="B97F9B18F05AFFC561B6F63ED15F32FD" bold="true" box="[151,271,1907,1931]" pageId="13" pageNumber="355">FIGURE 7</emphasis>
.
<taxonomicName id="4C0B3C89F05AFFC5603FF63ED26C32FD" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[286,572,1907,1931]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="13" pageNumber="355" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F05AFFC5603FF63ED26C32FD" box="[286,572,1907,1931]" italics="true" pageId="13" pageNumber="355">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F05AFFC56364F63ED2FE32FD" bold="true" box="[581,686,1907,1931]" pageId="13" pageNumber="355">
<taxonomicNameLabel id="A24C2663F05AFFC56364F63ED2FE32FD" box="[581,686,1907,1931]" pageId="13" pageNumber="355" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pereopod 1, with enlarged palm; (B) pereopod 2; (C) pereopod 3; (D) pereopod 4; (E) pereopod 5; (F) pereopod 6; (G) pereopod 7.
</paragraph>
</caption>
<caption id="DF741782F059FFC661B6F438D4AF30A3" ID-DOI="http://doi.org/10.5281/zenodo.10061400" ID-Zenodo-Dep="10061400" httpUri="https://zenodo.org/record/10061400/files/figure.png" pageId="14" pageNumber="356" startId="14.[151,250,1397,1421]" targetBox="[157,1429,187,1367]" targetPageId="14" targetType="figure">
<paragraph id="8BB4470AF059FFC661B6F438D4AF30A3" blockId="14.[151,1437,1397,1494]" pageId="14" pageNumber="356">
<emphasis id="B97F9B18F059FFC661B6F438D15E30FB" bold="true" box="[151,270,1397,1421]" pageId="14" pageNumber="356">FIGURE 8</emphasis>
.
<taxonomicName id="4C0B3C89F059FFC6603DF438D26930FB" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[284,569,1397,1421]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="14" pageNumber="356" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F059FFC6603DF438D26930FB" box="[284,569,1397,1421]" italics="true" pageId="14" pageNumber="356">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F059FFC66361F438D2F930FB" bold="true" box="[576,681,1397,1421]" pageId="14" pageNumber="356">
<taxonomicNameLabel id="A24C2663F059FFC66361F438D2F930FB" box="[576,681,1397,1421]" pageId="14" pageNumber="356" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (
<emphasis id="B97F9B18F059FFC661F6F4D7D0AE30C7" box="[215,254,1434,1457]" italics="true" pageId="14" pageNumber="356">g.p.</emphasis>
, genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2.
</paragraph>
</caption>
<paragraph id="8BB4470AF059FFC661E6F76AD0A0326F" blockId="14.[151,1437,1575,2034]" pageId="14" pageNumber="356">
<emphasis id="B97F9B18F059FFC661E6F76AD16A3337" box="[199,314,1575,1601]" italics="true" pageId="14" pageNumber="356">Antennula</emphasis>
(
<figureCitation id="13305B8FF059FFC6606BF76AD19A3334" box="[330,458,1575,1602]" captionStart="FIGURE 4" captionStartId="10.[151,250,1737,1761]" captionTargetBox="[165,1423,185,1707]" captionTargetId="figure-16@10.[159,1429,181,1713]" captionTargetPageId="10" captionText="FIGURE 4. Habitus of examined specimens: (A, B) Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.5 mm, dorsal view (A); lateral view (B). (C, D) Nipponasellus matsumotoi spec. nov., holotype X54659/Cr-2477-FEFU, male, 5.0 mm, dorsal view (C); lateral view (D)." figureDoi="http://doi.org/10.5281/zenodo.10061391" httpUri="https://zenodo.org/record/10061391/files/figure.png" pageId="14" pageNumber="356">Figs 4A, B</figureCitation>
,
<figureCitation id="13305B8FF059FFC660F6F76AD24E3334" box="[471,542,1575,1602]" captionStart="FIGURE 5" captionStartId="11.[151,250,1943,1967]" captionTargetBox="[181,1406,185,1913]" captionTargetId="figure-17@11.[175,1412,181,1919]" captionTargetPageId="11" captionText="FIGURE 5. Head features in dorsal, lateral, ventral and anterior oblique views (maxilliped removed): (AD) Nipponasellus sudzukhensis spec. nov., paratype X54658/Cr-2476-FEFU, female, 5.0 mm; (EH) Nipponasellus matsumotoi spec. nov., paratype X54660/Cr-2478-FEFU, female, 4.2 mm." figureDoi="http://doi.org/10.5281/zenodo.10061394" httpUri="https://zenodo.org/record/10061394/files/figure.png" pageId="14" pageNumber="356">5AD</figureCitation>
,
<figureCitation id="13305B8FF059FFC6630AF76AD26A3337" box="[555,570,1575,1601]" captionStart="FIGURE 4" captionStartId="10.[151,250,1737,1761]" captionTargetBox="[165,1423,185,1707]" captionTargetId="figure-16@10.[159,1429,181,1713]" captionTargetPageId="10" captionText="FIGURE 4. Habitus of examined specimens: (A, B) Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.5 mm, dorsal view (A); lateral view (B). (C, D) Nipponasellus matsumotoi spec. nov., holotype X54659/Cr-2477-FEFU, male, 5.0 mm, dorsal view (C); lateral view (D)." figureDoi="http://doi.org/10.5281/zenodo.10061391" httpUri="https://zenodo.org/record/10061391/files/figure.png" pageId="14" pageNumber="356">4</figureCitation>
) length ca. 50% of antennal podomeres length; articles 13 length relations: 1: 0.8: 0.3, article 1 swollen, article 2 with 1 broom seta at inferodistal angle; flagellum length ca. 0.5 times of podomeres length, of 6 articles, successive articles shorter, distal 4 articles with one minute aesthetasc, each with one seta.
<emphasis id="B97F9B18F059FFC661DEF7D9D10C33D8" box="[255,348,1684,1710]" italics="true" pageId="14" pageNumber="356">Antenna</emphasis>
(
<figureCitation id="13305B8FF059FFC6604AF7DED1B833D8" box="[363,488,1683,1710]" captionStart="FIGURE 4" captionStartId="10.[151,250,1737,1761]" captionTargetBox="[165,1423,185,1707]" captionTargetId="figure-16@10.[159,1429,181,1713]" captionTargetPageId="10" captionText="FIGURE 4. Habitus of examined specimens: (A, B) Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.5 mm, dorsal view (A); lateral view (B). (C, D) Nipponasellus matsumotoi spec. nov., holotype X54659/Cr-2477-FEFU, male, 5.0 mm, dorsal view (C); lateral view (D)." figureDoi="http://doi.org/10.5281/zenodo.10061391" httpUri="https://zenodo.org/record/10061391/files/figure.png" pageId="14" pageNumber="356">Figs 4A, B</figureCitation>
,
<figureCitation id="13305B8FF059FFC660D2F7DED26A33D8" box="[499,570,1683,1710]" captionStart="FIGURE 5" captionStartId="11.[151,250,1943,1967]" captionTargetBox="[181,1406,185,1913]" captionTargetId="figure-17@11.[175,1412,181,1919]" captionTargetPageId="11" captionText="FIGURE 5. Head features in dorsal, lateral, ventral and anterior oblique views (maxilliped removed): (AD) Nipponasellus sudzukhensis spec. nov., paratype X54658/Cr-2476-FEFU, female, 5.0 mm; (EH) Nipponasellus matsumotoi spec. nov., paratype X54660/Cr-2478-FEFU, female, 4.2 mm." figureDoi="http://doi.org/10.5281/zenodo.10061394" httpUri="https://zenodo.org/record/10061394/files/figure.png" pageId="14" pageNumber="356">5AD</figureCitation>
,
<figureCitation id="13305B8FF059FFC66364F7DED20433DB" box="[581,596,1683,1709]" captionStart="FIGURE 4" captionStartId="10.[151,250,1737,1761]" captionTargetBox="[165,1423,185,1707]" captionTargetId="figure-16@10.[159,1429,181,1713]" captionTargetPageId="10" captionText="FIGURE 4. Habitus of examined specimens: (A, B) Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.5 mm, dorsal view (A); lateral view (B). (C, D) Nipponasellus matsumotoi spec. nov., holotype X54659/Cr-2477-FEFU, male, 5.0 mm, dorsal view (C); lateral view (D)." figureDoi="http://doi.org/10.5281/zenodo.10061391" httpUri="https://zenodo.org/record/10061391/files/figure.png" pageId="14" pageNumber="356">4</figureCitation>
) length ca. 60% of total body length; articles 26 length relations 0.2: 0.25: 0.25: 0.7: 1, article 5 with a group of short seta at anterodistal angle, article 6 with 2 broom setae and cluster of simple setae of different lengths on distal margin; flagellum length 70% of total antenna length, composed of 29 articles.
</paragraph>
<paragraph id="8BB4470AF059FFC761E6F66ED50134A7" blockId="14.[151,1437,1575,2034]" lastBlockId="15.[151,1437,151,465]" lastPageId="15" lastPageNumber="357" pageId="14" pageNumber="356">
<emphasis id="B97F9B18F059FFC661E6F66ED170324B" box="[199,288,1827,1853]" italics="true" pageId="14" pageNumber="356">Labrum</emphasis>
(
<figureCitation id="13305B8FF059FFC66013F66ED1D9324B" box="[306,393,1827,1853]" captionStart="FIGURE 6" captionStartId="12.[151,250,1740,1764]" captionTargetBox="[157,1429,187,1710]" captionTargetId="figure-16@12.[151,1435,181,1716]" captionTargetPageId="12" captionText="FIGURE 6. Nipponasellussudzukhensis spec.nov., holotype X54657/Cr-2475-FEFU, male,5.0 mm:(A) antennula; (B)antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped." figureDoi="http://doi.org/10.5281/zenodo.10061396" httpUri="https://zenodo.org/record/10061396/files/figure.png" pageId="14" pageNumber="356">Fig. 6E</figureCitation>
) sub-quadrate with fine setae on apex.
<emphasis id="B97F9B18F059FFC66273F66ED3F8324B" box="[850,936,1827,1853]" italics="true" pageId="14" pageNumber="356">Labium</emphasis>
sub-triangular, split almost one-third, outer lobes rounded and tapered proximally.
<emphasis id="B97F9B18F059FFC66370F60AD2973217" box="[593,711,1863,1889]" italics="true" pageId="14" pageNumber="356">Mandibles</emphasis>
(
<figureCitation id="13305B8FF059FFC663F6F60AD3053217" box="[727,853,1863,1889]" captionStart="FIGURE 6" captionStartId="12.[151,250,1740,1764]" captionTargetBox="[157,1429,187,1710]" captionTargetId="figure-16@12.[151,1435,181,1716]" captionTargetPageId="12" captionText="FIGURE 6. Nipponasellussudzukhensis spec.nov., holotype X54657/Cr-2475-FEFU, male,5.0 mm:(A) antennula; (B)antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped." figureDoi="http://doi.org/10.5281/zenodo.10061396" httpUri="https://zenodo.org/record/10061396/files/figure.png" pageId="14" pageNumber="356">Figs 6C, D</figureCitation>
) sub-equal, with 4-cuspidate
<emphasis id="B97F9B18F059FFC66585F605D5653217" box="[1188,1333,1864,1889]" italics="true" pageId="14" pageNumber="356">pars incisiva</emphasis>
(incisor) and 5-cuspidate left
<emphasis id="B97F9B18F059FFC660A3F626D27B32F3" box="[386,555,1899,1925]" italics="true" pageId="14" pageNumber="356">lacinia mobilis</emphasis>
, setal row of 34 serrate and 56 plumose stiff setae;
<emphasis id="B97F9B18F059FFC66583F626D48432F3" box="[1186,1236,1899,1925]" italics="true" pageId="14" pageNumber="356">palp</emphasis>
3-segmented, ca. twice shorter than mandibular corpus, article 1 with 1 short distal seta, article 2 as long as article 1, with a row of 4 simple medial setae, article 3 paddle-shaped, with a row of 7 simple setae.
<emphasis id="B97F9B18F059FFC662D6F6FED43432BB" box="[1015,1124,1971,1997]" italics="true" pageId="14" pageNumber="356">Maxillula</emphasis>
(
<figureCitation id="13305B8FF059FFC66555F6FED49732BB" box="[1140,1223,1971,1997]" captionStart="FIGURE 6" captionStartId="12.[151,250,1740,1764]" captionTargetBox="[157,1429,187,1710]" captionTargetId="figure-16@12.[151,1435,181,1716]" captionTargetPageId="12" captionText="FIGURE 6. Nipponasellussudzukhensis spec.nov., holotype X54657/Cr-2475-FEFU, male,5.0 mm:(A) antennula; (B)antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped." figureDoi="http://doi.org/10.5281/zenodo.10061396" httpUri="https://zenodo.org/record/10061396/files/figure.png" pageId="14" pageNumber="356">Fig. 6F</figureCitation>
) inner plate with 5 apical pappose setae; outer plate with 12 serrate robust setae and 1 simple thin seta, 1 simple seta sub-apically on lateral margin, 1 very long simple seta on ventral face.
<emphasis id="B97F9B18F058FFC763DBF1DAD30135C7" box="[762,849,151,177]" italics="true" pageId="15" pageNumber="357">Maxilla</emphasis>
(
<figureCitation id="13305B8FF058FFC7627EF1DAD3E735C7" box="[863,951,151,177]" captionStart="FIGURE 6" captionStartId="12.[151,250,1740,1764]" captionTargetBox="[157,1429,187,1710]" captionTargetId="figure-16@12.[151,1435,181,1716]" captionTargetPageId="12" captionText="FIGURE 6. Nipponasellussudzukhensis spec.nov., holotype X54657/Cr-2475-FEFU, male,5.0 mm:(A) antennula; (B)antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped." figureDoi="http://doi.org/10.5281/zenodo.10061396" httpUri="https://zenodo.org/record/10061396/files/figure.png" pageId="15" pageNumber="357">Fig. 6G</figureCitation>
) inner plate longer than outer plate, sharply rounded, sub-triangular, with longer row of 8 setae (4 serrate and 4 simple setae apically), and with double oblique rows of 16 and 5 thin simple setae respectively; lateral and middle plates with 17 simple and 11 striated setae, respectively.
<emphasis id="B97F9B18F058FFC7600BF04ED1F3346B" box="[298,419,259,285]" italics="true" pageId="15" pageNumber="357">Maxilliped</emphasis>
(
<figureCitation id="13305B8FF058FFC76092F04ED25B346B" box="[435,523,259,285]" captionStart="FIGURE 6" captionStartId="12.[151,250,1740,1764]" captionTargetBox="[157,1429,187,1710]" captionTargetId="figure-16@12.[151,1435,181,1716]" captionTargetPageId="12" captionText="FIGURE 6. Nipponasellussudzukhensis spec.nov., holotype X54657/Cr-2475-FEFU, male,5.0 mm:(A) antennula; (B)antenna; (C) mandible, left; (D) mandible, right; (E) labium; (F) maxillula, with enlarged outer plate; (G) maxilla; (H) maxilliped." figureDoi="http://doi.org/10.5281/zenodo.10061396" httpUri="https://zenodo.org/record/10061396/files/figure.png" pageId="15" pageNumber="357">Fig. 6H</figureCitation>
) basal endite broad, apex triangular and reaching tip of palp article 3, about twice longer than wide, with 5 bulbous recurved coupling hooks at distomesial margin, about 20% wider than palp article 2 width, with 20 pappose stiff setae distally, 9 simple slender setae in oblique row and with numerous short simple setae sub-apically on ventral surface; palp article 1 shortest, 3 times as wide as long; article 2 sub-rectangular, ca. 0.3 times shorter than article 4; articles 35 length relations: 0.6: 1: 0.4, with a few setae along outer margin, densely setose along inner margin; apex of epipodite sub-square, not pointed, with sparse setae along lateral margin.
</paragraph>
<caption id="DF741782F058FFC761B6F711D55B33EF" ID-DOI="http://doi.org/10.5281/zenodo.10061402" ID-Zenodo-Dep="10061402" httpUri="https://zenodo.org/record/10061402/files/figure.png" pageId="15" pageNumber="357" startId="15.[151,250,1628,1652]" targetBox="[151,1436,503,1582]" targetPageId="15" targetType="figure">
<paragraph id="8BB4470AF058FFC761B6F711D55B33EF" blockId="15.[151,1436,1628,1689]" pageId="15" pageNumber="357">
<emphasis id="B97F9B18F058FFC761B6F711D15F3302" bold="true" box="[151,271,1628,1652]" pageId="15" pageNumber="357">FIGURE 9</emphasis>
. Scanning electron micrographs of pleopod 2 of
<taxonomicName id="4C0B3C89F058FFC76230F710D47E3303" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[785,1070,1629,1653]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="15" pageNumber="357" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F058FFC76230F710D47E3303" box="[785,1070,1629,1653]" italics="true" pageId="15" pageNumber="357">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F058FFC76516F710D4F03303" bold="true" box="[1079,1184,1629,1653]" pageId="15" pageNumber="357">
<taxonomicNameLabel id="A24C2663F058FFC76516F710D4F03303" box="[1079,1184,1629,1653]" pageId="15" pageNumber="357" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, adult male: (A) pair of pleopods 2, ventral view; (B) endopodite of pleopod 2, right; (C, D) appendix masculina enlarged, right and left.
</paragraph>
</caption>
<paragraph id="8BB4470AF058FFD861E6F7A6D4B734FF" blockId="15.[151,1437,1771,2013]" lastBlockId="16.[151,1437,151,1401]" lastPageId="16" lastPageNumber="358" pageId="15" pageNumber="357">
<emphasis id="B97F9B18F058FFC761E6F7A6D1213273" box="[199,369,1771,1797]" italics="true" pageId="15" pageNumber="357">Pereopods 17</emphasis>
(
<figureCitation id="13305B8FF058FFC760A0F7A6D2523273" box="[385,514,1771,1797]" captionStart="FIGURE 7" captionStartId="13.[151,250,1907,1931]" captionTargetBox="[157,1431,424,1878]" captionTargetId="figure-124@13.[151,1435,417,1884]" captionTargetPageId="13" captionText="FIGURE 7. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pereopod 1, with enlarged palm; (B) pereopod 2; (C) pereopod 3; (D) pereopod 4; (E) pereopod 5; (F) pereopod 6; (G) pereopod 7." figureDoi="http://doi.org/10.5281/zenodo.10061398" httpUri="https://zenodo.org/record/10061398/files/figure.png" pageId="15" pageNumber="357">Figs 7AG</figureCitation>
) sub-similar in construction, slightly increasing in length towards posterior pairs (except pereopod 4, which is somewhat slender); pereopods 27 with 1 denticle and 1 seta along dactylus inner margin.
<emphasis id="B97F9B18F058FFC761D5F67ED124323B" box="[244,372,1843,1869]" italics="true" pageId="15" pageNumber="357">Pereopod 1</emphasis>
length ca. 25% of body length; basis slender, ca. 15% longer than propodus, with 2 and 4 short setae on superior and inferior margins, respectively; ischium length 53% of basis length; merus sub-trapezoidal, dilated distally with moderately curved superior margin bearing 2 stiff setae on distal-superior angle, merus inferior margin with sparse short setae; carpus poorly developed, sub-quadrate, with 1 short stiff seta at distal-superior angle and 2 short stiff and 1 thin setae along inferior margin; propodus unicuspidate, slender, oblong, ca. 3.0 times as long as wide, superior margin as long as palm, both margins slightly convex, palmar margin armed with 6 stiff simple setae and 3 thin setae, ca. half of palmar edge with pilosity pattern; dactylus curved, 0.5 times shorter than palm, with 6 denticles (one of which strong) along inferior margin and with 5 simple setae along superior margin, claw length 30% of total dactylus length, with 1 basal seta.
<emphasis id="B97F9B18F047FFD863DBF04ED32C346B" box="[762,892,259,285]" italics="true" pageId="16" pageNumber="358">Pereopod 2</emphasis>
ca. 10% longer than pereopod 1; basisdactylus length relations: 1: 0.6: 0.4: 0.7: 0.7: 0.3; merus sub-trapezoidal, dilated distally with moderately curved superior margin bearing 2 stiff short setae on distal-superior angle; propodus somewhat longer than carpus, with biungulate dactylus; claw about half as long as dactylus length.
<emphasis id="B97F9B18F047FFD863C4F022D3DD34FF" box="[741,909,367,393]" italics="true" pageId="16" pageNumber="358">Pereopods 37</emphasis>
slender, similar to pereopod 2.
</paragraph>
<paragraph id="8BB4470AF047FFD861E6F0DED5223167" blockId="16.[151,1437,151,1401]" pageId="16" pageNumber="358">
<emphasis id="B97F9B18F047FFD861E6F0DED16A34DB" box="[199,314,403,429]" italics="true" pageId="16" pageNumber="358">Pleopod 1</emphasis>
(
<figureCitation id="13305B8FF047FFD86068F0DED19634DB" box="[329,454,403,429]" captionStart="FIGURE 8" captionStartId="14.[151,250,1397,1421]" captionTargetBox="[157,1429,187,1367]" captionTargetId="figure-16@14.[151,1435,181,1373]" captionTargetPageId="14" captionText="FIGURE 8. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (g.p., genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2." figureDoi="http://doi.org/10.5281/zenodo.10061400" httpUri="https://zenodo.org/record/10061400/files/figure.png" pageId="16" pageNumber="358">Figs 8A, B</figureCitation>
) protopodite sub-rectangular, tapered distally, as wide as long, about 50% of exopodite length, with 2 denticulate coupling hooks on medial margin; exopodite broad, rounded sub-rectangular, about 1.6 times as long as wide, without concavity on lateral margin, with 12 short simple setae extending from lateral to terminal margins.
<emphasis id="B97F9B18F047FFD86044F0B2D189376F" box="[357,473,511,537]" italics="true" pageId="16" pageNumber="358">Pleopod 2</emphasis>
(
<figureCitation id="13305B8FF047FFD860C9F0B2D215376F" box="[488,581,511,537]" captionStart="FIGURE 8" captionStartId="14.[151,250,1397,1421]" captionTargetBox="[157,1429,187,1367]" captionTargetId="figure-16@14.[151,1435,181,1373]" captionTargetPageId="14" captionText="FIGURE 8. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (g.p., genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2." figureDoi="http://doi.org/10.5281/zenodo.10061400" httpUri="https://zenodo.org/record/10061400/files/figure.png" pageId="16" pageNumber="358">Figs 8C</figureCitation>
,
<figureCitation id="13305B8FF047FFD86373F0B2D2C7376F" box="[594,663,511,537]" captionStart="FIGURE 9" captionStartId="15.[151,250,1628,1652]" captionTargetBox="[151,1436,503,1582]" captionTargetId="figure-190@15.[151,1436,503,1582]" captionTargetPageId="15" captionText="FIGURE 9. Scanning electron micrographs of pleopod 2 of Nipponasellus sudzukhensis spec. nov., adult male: (A) pair of pleopods 2, ventral view; (B) endopodite of pleopod 2, right; (C, D) appendix masculina enlarged, right and left." figureDoi="http://doi.org/10.5281/zenodo.10061402" httpUri="https://zenodo.org/record/10061402/files/figure.png" pageId="16" pageNumber="358">9AD</figureCitation>
) protopodite sub-quadratic, clearly tapered distally, as long as wide, with a pattern of cuticular scales; exopodite ca. twice shorter than protopodite, article 1 sub-rectangular, with 1 simple seta on lateral margin, terminal article rounded, catch lobe moderately developed, with 3 plumose and 1 simple on medial, and 2 setae on lateral margins, respectively; endopodite massive, crescent, as long as protopodite, tapered distally, ornamented with sparse finger-like (or ctenoid) cuticular scales close to terminal end, basal spur slender, long, length ca. 50 % of endopodite length, crypte incomplete, cannula distinct, immersed in ctenoid (i.e., comb-like margined) cuticular scales and delineated circumferentially by an edge of soft limbus.
<emphasis id="B97F9B18F047FFD86408F39AD5CC3787" box="[1321,1436,727,753]" italics="true" pageId="16" pageNumber="358">Pleopod 3</emphasis>
(
<figureCitation id="13305B8FF047FFD861BEF3B6D0A83663" box="[159,248,763,789]" captionStart="FIGURE 8" captionStartId="14.[151,250,1397,1421]" captionTargetBox="[157,1429,187,1367]" captionTargetId="figure-16@14.[151,1435,181,1373]" captionTargetPageId="14" captionText="FIGURE 8. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (g.p., genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2." figureDoi="http://doi.org/10.5281/zenodo.10061400" httpUri="https://zenodo.org/record/10061400/files/figure.png" pageId="16" pageNumber="358">Fig. 8D</figureCitation>
) exopodite semicircular, with almost rectilinear medial and rounded lateral margins, 2.2 times as long as wide, divided by oblique line into two sub-equal parts, terminal and lateral margins fringed with sparse simple setae; endopodite oblong, sac-like, length ca. 70% of exopodite length.
<emphasis id="B97F9B18F047FFD86247F20ED387362B" box="[870,983,835,861]" italics="true" pageId="16" pageNumber="358">Pleopod 4</emphasis>
(
<figureCitation id="13305B8FF047FFD862C4F20ED468362B" box="[997,1080,835,861]" captionStart="FIGURE 8" captionStartId="14.[151,250,1397,1421]" captionTargetBox="[157,1429,187,1367]" captionTargetId="figure-16@14.[151,1435,181,1373]" captionTargetPageId="14" captionText="FIGURE 8. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (g.p., genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2." figureDoi="http://doi.org/10.5281/zenodo.10061400" httpUri="https://zenodo.org/record/10061400/files/figure.png" pageId="16" pageNumber="358">Fig. 8E</figureCitation>
) exopodite sub-ovoid, 2.0 times as long as wide, terminal and lateral margins fringed with numerous minute hairs, respiratory area surface ca. 25% of exopodite surface; endopodite length ca. 90% of exopodite length.
<emphasis id="B97F9B18F047FFD862B6F2C6D45836D3" box="[919,1032,907,933]" italics="true" pageId="16" pageNumber="358">Pleopod 5</emphasis>
(
<figureCitation id="13305B8FF047FFD86537F2C6D43836D3" box="[1046,1128,907,933]" captionStart="FIGURE 8" captionStartId="14.[151,250,1397,1421]" captionTargetBox="[157,1429,187,1367]" captionTargetId="figure-16@14.[151,1435,181,1373]" captionTargetPageId="14" captionText="FIGURE 8. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (g.p., genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2." figureDoi="http://doi.org/10.5281/zenodo.10061400" httpUri="https://zenodo.org/record/10061400/files/figure.png" pageId="16" pageNumber="358">Fig. 8F</figureCitation>
) exopodite elongate, ovoid, 2.3 times as long as wide, respiratory area surface ca. 35% of exopodite surface, linea area beginning and ending as slightly curved suture from internal to terminal margin; endopodite elongate, ovoid, longer than wide.
<emphasis id="B97F9B18F047FFD8642BF29ED530369B" box="[1290,1376,979,1005]" italics="true" pageId="16" pageNumber="358">Uropod</emphasis>
(
<figureCitation id="13305B8FF047FFD8644EF29ED0EA3167" captionStart="FIGURE 8" captionStartId="14.[151,250,1397,1421]" captionTargetBox="[157,1429,187,1367]" captionTargetId="figure-16@14.[151,1435,181,1373]" captionTargetPageId="14" captionText="FIGURE 8. Nipponasellus sudzukhensis spec. nov., holotype X54657/Cr-2475-FEFU, male, 5.0 mm: (A) pleotelson, ventral view (g.p., genital papilla); (B) pleopod 1; (C) pleopod 2, with schematic outline of details of appendix masculina; (D) pleopod 3; (E) pleopod 4; (F) pleopod 5; (G) uropod. Paratype X54658/Cr-2476-FEFU, female, 6.0 mm: (H) pleopod 2." figureDoi="http://doi.org/10.5281/zenodo.10061400" httpUri="https://zenodo.org/record/10061400/files/figure.png" pageId="16" pageNumber="358">Fig. 8G</figureCitation>
) short, about half length of pleotelson; peduncle a little longer than both rami, length relations: 1: 0.7: 0.4.
</paragraph>
<paragraph id="8BB4470AF047FFD861E6F557D1B63143" blockId="16.[151,1437,151,1401]" box="[199,486,1050,1077]" pageId="16" pageNumber="358">
<emphasis id="B97F9B18F047FFD861E6F557D1113142" bold="true" box="[199,321,1050,1076]" pageId="16" pageNumber="358">Variation:</emphasis>
Not observed.
</paragraph>
<paragraph id="8BB4470AF047FFD861E6F573D34C31B3" blockId="16.[151,1437,151,1401]" pageId="16" pageNumber="358">
<emphasis id="B97F9B18F047FFD861E6F573D1E9312E" bold="true" box="[199,441,1086,1112]" pageId="16" pageNumber="358">Sexual dimorphism:</emphasis>
Females are generally similar to males except for being slightly larger. Collected females did not have developed marsupial plates (oostegites). Pereopod 1 propodus is not sexually dimorphic; male and female pereopods are similar. Pereopod 4 not sexually dimorphic. Female pleopod 2 sub-triangular, tapered distally, apex and distal half of lateral margin with 2 minute setae.
</paragraph>
<paragraph id="8BB4470AF047FFD861E6F583D288300F" blockId="16.[151,1437,151,1401]" pageId="16" pageNumber="358">
<emphasis id="B97F9B18F047FFD861E6F583D185319F" bold="true" box="[199,469,1230,1257]" pageId="16" pageNumber="358">Taxonomic comments:</emphasis>
<taxonomicName id="4C0B3C89F047FFD860FCF582D347319F" authority="Sidorov, 2023" authorityName="Sidorov" authorityYear="2023" box="[477,791,1231,1257]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="16" pageNumber="358" phylum="Arthropoda" rank="species" species="sudzukhensis" status="spec. nov.">
<emphasis id="B97F9B18F047FFD860FCF582D347319F" box="[477,791,1231,1257]" italics="true" pageId="16" pageNumber="358">Nipponasellus sudzukhensis</emphasis>
</taxonomicName>
<emphasis id="B97F9B18F047FFD8623EF582D3C2319F" bold="true" box="[799,914,1231,1257]" pageId="16" pageNumber="358">
<taxonomicNameLabel id="A24C2663F047FFD8623EF582D3C2319F" box="[799,914,1231,1257]" pageId="16" pageNumber="358" rank="species">spec. nov.</taxonomicNameLabel>
</emphasis>
, with a moderately broad body, closely fitting pereonites, antennula and antenna with 6 and 29 articles in males, uropods shorter than pleotelson and a body length of up to
<quantity id="4CF3EAEFF047FFD861D3F45AD1643047" box="[242,308,1303,1329]" metricMagnitude="-3" metricUnit="m" metricValue="6.0" pageId="16" pageNumber="358" unit="mm" value="6.0">6 mm</quantity>
, most closely resembles
<taxonomicName id="4C0B3C89F047FFD86364F45AD3FA3047" authority="(Matsumoto, 1956)" baseAuthorityName="Matsumoto" baseAuthorityYear="1956" box="[581,938,1302,1329]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="16" pageNumber="358" phylum="Arthropoda" rank="species" species="hubrichti">
<emphasis id="B97F9B18F047FFD86364F45AD29C3047" box="[581,716,1303,1329]" italics="true" pageId="16" pageNumber="358">N. hubrichti</emphasis>
(Matsumoto, 1956)
</taxonomicName>
, but can be distinguished by (character states of
<taxonomicName id="4C0B3C89F047FFD86194F476D16B3023" baseAuthorityName="Matsumoto" baseAuthorityYear="1956" box="[181,315,1339,1365]" class="Malacostraca" family="Asellidae" genus="Nipponasellus" kingdom="Animalia" order="Isopoda" pageId="16" pageNumber="358" phylum="Arthropoda" rank="species" species="hubrichti">
<emphasis id="B97F9B18F047FFD86194F476D16B3023" box="[181,315,1339,1365]" italics="true" pageId="16" pageNumber="358">N. hubrichti</emphasis>
</taxonomicName>
in brackets): mandibular palp 3-articulated (reduced, 1-articulated); length of antenna in males about 60% of total body length (up to 80%) (see
<tableCitation id="C68972B1F047FFD86354F412D29B300F" box="[629,715,1375,1401]" captionStart="TABLE 2" captionStartId="22.[151,239,404,428]" captionTargetPageId="22" captionText="TABLE 2. Analytical comparison of morphological characters among Nipponasellus species." httpUri="http://table.plazi.org/id/DF741782F041FFDE61B6F0D9D42D34DA" pageId="16" pageNumber="358" tableUuid="DF741782F041FFDE61B6F0D9D42D34DA">Table 2</tableCitation>
).
</paragraph>
</subSubSection>
</treatment>
</document>