treatments-xml/data/37/5F/CD/375FCDC36A6A5496BE22B9AEAE52D4C7.xml

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<mods:title id="5AE0344305D7C05431DB34C1686FECFB">Molecular phylogenetic and morphological studies reveal increased species diversity in the millipede genus Skleroprotopus Attems, 1901 in China (Julida: Mongoliulidae)</mods:title>
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<mods:namePart id="CE23EE8E53C55A30DF609839FAE8F05D">Chen, Rong</mods:namePart>
<mods:affiliation id="F302D7FDFA7B0400463E622A35979CBD">College of Plant Protection, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China</mods:affiliation>
</mods:name>
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<mods:namePart id="46E30561BED2DC4C129D37C141E45574">Zhao, Yi</mods:namePart>
<mods:affiliation id="CF71E5E576854186467EC2C866404F71">College of Plant Protection, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China &amp; Guangdong Academy of Forestry, 233 Guangshan 1 st Road, Guangzhou 510520, China</mods:affiliation>
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<mods:namePart id="60F83DC9CE06347A38A8A1E2501E44A9">Golovatch, Sergei</mods:namePart>
<mods:affiliation id="CDE1D6AC7116B2F2189E831D616FEBC1">Institute for Problems of Ecology and Evolution, Russian Academy of Sciences, Leninsky pr. 33, Moscow 119071, Russia</mods:affiliation>
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<mods:namePart id="52B0E840CCD13E2C652C80BCA85E196B">Liu, Wei-Xin</mods:namePart>
<mods:affiliation id="49CBA2D5A15F34F605ED89294E265C09">College of Plant Protection, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China</mods:affiliation>
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<mods:date id="1D9D51A5EDFD423CDA0C6D12849E7458">2024</mods:date>
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<treatment id="375FCDC36A6A5496BE22B9AEAE52D4C7" ID-DOI="http://doi.org/10.5281/zenodo.14513075" ID-Zenodo-Dep="14513075" ID-arpha="375FCDC3-6A6A-5496-BE22-B9AEAE52D4C7" ID-zoobank="https://zoobank.org/CEFDE092-2A67-4675-96CA-EAE15ECA79CC" LSID="urn:lsid:plazi:treatment:375FCDC36A6A5496BE22B9AEAE52D4C7" LSID-ZBK="urn:lsid:zoobank.org:act:CEFDE092-2A67-4675-96CA-EAE15ECA79CC" httpUri="http://treatment.plazi.org/id/375FCDC36A6A5496BE22B9AEAE52D4C7">
<subSubSection id="EC01E95E7B17C813B20A8F809353B6A4" type="nomenclature">
<paragraph id="F759EC270A74124BF0DF413878350D68">
<heading id="C8C42BE5FDE095CF0BC453AB9700B1D2" reason="label">3.3. 7.</heading>
<taxonomicName id="61B970B17A638E80063D111DA671029A" authorityName="Chen &amp; Zhao &amp; Golovatch &amp; Liu" authorityYear="2024" class="Diplopoda" family="Mongoliulidae" genus="Skleroprotopus" kingdom="Animalia" order="Julida" phylum="Arthropoda" rank="species" species="longissimus" status="sp. nov.">
<emphasis id="C40790F0A183A1922ABDE9A70F9DB46E" italics="true">Skleroprotopus longissimus</emphasis>
</taxonomicName>
<taxonomicNameLabel id="A126F3F98BCC6145B1D87803077BAF25" rank="species">sp. nov.</taxonomicNameLabel>
</paragraph>
</subSubSection>
<subSubSection id="2474483D8DCFDBD6100A0B2D196229E5" type="description">
<paragraph id="26558791F01C4E945E8D5B2E68A12A4D">
<figureCitation id="B43D8A358A1B075775DD853362EB3E13" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pictures of live animals, photos by Prof. Mingyi Tian from SCAU. A Skleroprotopus change sp. nov.; B Skleroprotopus megistus sp. nov.; C Skleroprotopus longissimus sp. nov.; D Skleroprotopus genjudi sp. nov.; E Skleroprotopus tiankeng sp. nov.; F Skleroprotopus laiyuanensis sp. nov.; G Skleroprotopus incisodentatus sp. nov." figureDoi="10.3897/asp.82.e136751.figure2" httpUri="https://binary.pensoft.net/fig/1201329">Figures 2 C</figureCitation>
, 
<figureCitation id="550F21BFF2E23D000BE6E3BC75183B07" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10</figureCitation>
</paragraph>
</subSubSection>
<subSubSection id="SECID0EZEBI" type="material">
<paragraph id="4D677C20C8E8133EE7432682CCB4940D">
<heading id="8D7014234A14705A92773339DB219DC2" reason="title">Material examined.</heading>
</paragraph>
<paragraph id="1D2081DBD3380AD295E037D6794D32CC">
<materialsCitation id="A5E1ABA82EC760DA506FBBA0836BB897" collectingDate="2013-10-19" collectionCode="SCAU" collectorName="Tian Mingyi &amp; Liu Weixin &amp; Yin Haomin" country="China" county="Guidong County" elevation="800" latitude="26.0037" location="Sidu Town" longLatPrecision="1" longitude="113.77452" municipality="Chenzhou City" specimenCount="1" stateProvince="Hunan" typeStatus="holotype">
<typeStatus id="3882297EEB612C4EE1E06CA7367CEF28" type="holotype">Holotype</typeStatus>
male (
<named-content id="0F76BC143BE42B4E84BCDE0A4B539C0C" content-type="dwc:institutional_code" xlink_href="http://grbio.org/institution/south-china-agricultural-university" xlink_title="Zoological Collection of the South China Agricultural University">
<collectionCode id="ED61512ABA3B977FAD793D2B7FE7E68C">SCAU</collectionCode>
</named-content>
), 
<collectingCountry id="B53AABD81E3FB3EF2D6433B77424B02F" name="China">China</collectingCountry>
, 
<collectingRegion id="563AB8AD9684EA09879315CDB26CFF54" country="China" name="Hunan">Hunan Province</collectingRegion>
, 
<collectingMunicipality id="FFE1502C57658ED595AD87F3AE0EC27F">Chenzhou City</collectingMunicipality>
, 
<collectingCounty id="1A752C8AA1CD7EAB9E8D886581355FAF">Guidong County</collectingCounty>
, 
<location id="92918483C8A95DA4A8A8779CB90783FF" LSID="urn:lsid:plazi:treatment:375FCDC36A6A5496BE22B9AEAE52D4C7:92918483C8A95DA4A8A8779CB90783FF" country="China" county="Guidong County" latitude="26.0037" longLatPrecision="1" longitude="113.77452" municipality="Chenzhou City" name="Sidu Town" stateProvince="Hunan">Sidu Town</location>
, 
<location id="3DE8430E4FAF3882A0ADEABB7F4367ED" LSID="urn:lsid:plazi:treatment:375FCDC36A6A5496BE22B9AEAE52D4C7:3DE8430E4FAF3882A0ADEABB7F4367ED" country="China" county="Guidong County" latitude="26.0037" longLatPrecision="1" longitude="113.77452" municipality="Chenzhou City" name="Cave Bidongfeiyan Dong" stateProvince="Hunan">Cave Bidongfeiyan Dong</location>
, 
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EGFBI" specific-use="{&quot;type&quot;:&quot;Point&quot;,&quot;coordinates&quot;:[113.774514,26.003700]}">
<geoCoordinate id="67ACC03144D4F579EB47C577ADE56605" degrees="26" direction="north" minutes="0" orientation="latitude" precision="1" seconds="13.32" value="26.0037">26 ° 0 ′ 13.32 ′′ N</geoCoordinate>
<geoCoordinate id="EB17343965CD65D76CA2758416A5AB61" degrees="113" direction="east" minutes="46" orientation="longitude" precision="1" seconds="28.25" value="113.77452">113 ° 46 ′ 28.25 ′′ E</geoCoordinate>
</named-content>
, 
<quantity id="C3D68A1DCB26FD62F3B61C6CB7898B6B" metricMagnitude="2" metricUnit="m" metricValue="8.0" unit="m" value="800.0">
<elevation id="0849221E8E4CA24B172461C272F61ECB" metricMagnitude="2" metricUnit="m" metricValue="8.0" unit="m" value="800.0">800 m</elevation>
</quantity>
, 
<date id="D74030D40811C222F5888F520D0A71E0" value="2013-10-19">
<collectingDate id="E77CF81A27069F0B7E500D919BA0221E" value="2013-10-19">19. X. 2013</collectingDate>
</date>
, 
<collectorName id="352DCF0500E34E1FAA41BB7A1BC9AC26">Tian Mingyi</collectorName>
, 
<collectorName id="E4F3BEE39AE6A2B9F5BEF35F5EBAFD5C">Liu Weixin</collectorName>
and 
<collectorName id="80AA9B24AE69E8176906F9A287635006">Yin Haomin</collectorName>
leg.
</materialsCitation>
<typeStatus id="67ABAEB2678ED081D159667A8EA98F17" type="paratype">Paratypes</typeStatus>
: 
<specimenCount id="AD5AD2100070E30DCF38E54A72DC2D4D" count="1" type="male">1 male</specimenCount>
, 
<specimenCount id="3952C09421523B39EA93B7209703B35D" count="5" type="female">5 females</specimenCount>
, 
<specimenCount id="71FBFA380C41A2060B6FBC6F85A15328" count="4" type="juvenile">4 juveniles</specimenCount>
(
<named-content id="81BD9D27DE0C0E559AC7384F7806BBB8" content-type="dwc:institutional_code" xlink_href="http://grbio.org/institution/south-china-agricultural-university" xlink_title="Zoological Collection of the South China Agricultural University">
<collectionCode id="4C75EF575888EE88565A43E032DDF653">SCAU</collectionCode>
</named-content>
), same data as for 
<typeStatus id="2CAF1C523D3452C9269446E05202BD53" type="holotype">holotype</typeStatus>
; 
<specimenCount id="87366C5878F0AA938CF6531361652BC0" count="7" type="male">7 males</specimenCount>
, 
<specimenCount id="488F827AC62157FCB6E7D6BEB05BCA92" count="13" type="female">13 females</specimenCount>
, 
<specimenCount id="622FCBBD2B4F58696C6E4DF4E7880F91" count="1" type="juvenile">1 juvenile</specimenCount>
, same cave, 
<date id="1BFCAFEE17988DADE968C163CDB7A0AA" value="2021-04-04">4. IV. 2021</date>
, Tian Mingyi and Cheng Jingli leg. Other material examined: 
<specimenCount id="A4581FE5F9FEA806DF72C1133A31D659" count="4" type="male">4 males</specimenCount>
, 
<specimenCount id="E61A5404C7D76635B55A86BCF16ECCA5" count="5" type="female">5 females</specimenCount>
, 
<specimenCount id="D778C0C9C6B6EDE02DCD2E056273E1FB" count="2" type="juvenile">2 juveniles</specimenCount>
(
<named-content id="945052A5B638906687CB2E46B14C395A" content-type="dwc:institutional_code" xlink_href="http://grbio.org/institution/south-china-agricultural-university" xlink_title="Zoological Collection of the South China Agricultural University">
<collectionCode id="C8910A22560E2DC5F73B0BF6F4EE2191">SCAU</collectionCode>
</named-content>
), same county, Sidu Town, Cave Sidu Dong, 
<named-content content-type="dwc:verbatimCoordinates" id="NCID0EWFBI" specific-use="{&quot;type&quot;:&quot;Point&quot;,&quot;coordinates&quot;:[113.785369,25.962931]}">
<geoCoordinate id="DF7D1144E57857DE169209E6643F6E49" degrees="25" direction="north" minutes="57" orientation="latitude" precision="1" seconds="46.55" value="25.96293">25 ° 57 ′ 46.55 ′′ N</geoCoordinate>
<geoCoordinate id="37D9F8D65EC6B8AD30C6781798A5335A" degrees="113" direction="east" minutes="47" orientation="longitude" precision="1" seconds="07.33" value="113.78537">113 ° 47 ′ 07.33 ′′ E</geoCoordinate>
</named-content>
, 
<quantity id="407FA336273B08F85B9D3A23B177C366" metricMagnitude="2" metricUnit="m" metricValue="9.0" unit="m" value="900.0">900 m</quantity>
, 
<date id="9905671F98298371A1EFD8595D712871" value="2011-07">VII. 2011</date>
, Tian Mingyi, Gao Qi and Sun Feifei leg.
</paragraph>
</subSubSection>
<subSubSection id="SECID0E2FBI" type="diagnosis">
<paragraph id="339D6CAD2DAF9118CE75494B8ABAA6C9">
<heading id="6DC9C280829F980EF772DB45584576AC" reason="title">Diagnosis.</heading>
</paragraph>
<paragraph id="487C564F47C60039D4EEB4B6B3149B93">
Differs from congeners mostly based on the following combination of characters: (1) penis much shorter than coxae 2 (Fig. 
<figureCitation id="F0570E7EDBA02FD626D88864ECE75C22" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 E</figureCitation>
); (2) male leg-pair 7 with a rather long and slender coxal process (Fig. 
<figureCitation id="E9846633173A9CC16E4F98468F4F898A" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 F</figureCitation>
); (3) anterior gonopod (Fig. 
<figureCitation id="16FB599D2825AFDA8B3072018CD8E602" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 G, H</figureCitation>
) with a very long coxal process carrying an irregularly dentate and membranous lobe, and a very long and slender flagellum. — In addition, this new species differs from all other species analyzed in a&gt; 12.4 % uncorrected 
<emphasis id="5B8B6AFF57E6852F02D39C424BAC134B" italics="true">p</emphasis>
- distance of the 
<abbrev id="ABBRID0EPGBI" xlink_title="Protein-coding gene sequences">COI</abbrev>
barcoding gene.
</paragraph>
<caption id="248AFA47FBEC6127BE755105D1CD61E3" ID-DOI="10.3897/asp.82.e136751.figure10" ID-arpha="5F37D96D-6704-5807-9344-EBE5BA612881" httpUri="https://binary.pensoft.net/fig/1201337" startId="F10">
<paragraph id="7A32BF6658FB3D54116D8EE90C47733E">
<label id="5AA106719B4EC5E67B46D4016A90260B">Figure 10.</label>
</paragraph>
<paragraph id="44ED4643CE055EA43FCD7160E3D4EDD9">
<taxonomicName id="D444083D0D6399D92ED9B0DE414F9902" authorityName="Chen &amp; Zhao &amp; Golovatch &amp; Liu" authorityYear="2024" class="Diplopoda" family="Mongoliulidae" genus="Skleroprotopus" kingdom="Animalia" order="Julida" phylum="Arthropoda" rank="species" species="longissimus" status="sp. nov.">
<emphasis id="939500D4D0749E3A7AFE6EAAB0AECC17" italics="true">Skleroprotopus longissimus</emphasis>
</taxonomicName>
<emphasis id="7A6909CD103F446BAF33B8DE5DD92A56" bold="true">
<taxonomicNameLabel id="1907A8A66D64EB9418D09A937102E36D" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
. paratypes from Cave Bidongfeiyan Dong. 
<emphasis id="B6EDF510349309CA381B3EA80A05C53C" bold="true">A</emphasis>
, 
<emphasis id="23FBE86B9BE84AB92118AE3CD4B87670" bold="true">D</emphasis>
– 
<emphasis id="BDF35F371B66E377C15C1013B8709A4E" bold="true">I</emphasis>
male paratype; 
<emphasis id="76C1B23AE2732E2EBBE6AED9388A9345" bold="true">B</emphasis>
, 
<emphasis id="D63BC464289CD713656BE7E4CECBDACE" bold="true">C</emphasis>
female paratype. 
<emphasis id="9D63D92785611E86B8142F9AA2ED7929" bold="true">A</emphasis>
, 
<emphasis id="77F24EECBE375495527C8E3BC0C0CC6D" bold="true">B</emphasis>
gnathochilarium; 
<emphasis id="CEEC8834F527F2C9DD95FA1D301BDA00" bold="true">C</emphasis>
right vulva, mesal view; 
<emphasis id="6EA752BCCBB62D28E97FC0251F817FDF" bold="true">D</emphasis>
legs 1, anterior view; 
<emphasis id="A987DA2C8D4C3250E45565F9B7CEE382" bold="true">E</emphasis>
legs 2 with penis, posterior view; 
<emphasis id="3729E8440680048339845F91744CB85B" bold="true">F</emphasis>
legs 7, anterior view; 
<emphasis id="54B5C0BAC109CF5691E90C847BE09C05" bold="true">G</emphasis>
anterior gonopods, anterior view; 
<emphasis id="1E2EF27B08B0294C683A04500716C306" bold="true">H</emphasis>
anterior gonopods, posterior view; 
<emphasis id="660D4B4AB834BBF52D453DD3E81CD463" bold="true">I</emphasis>
posterior gonopods, anterior view. 
<emphasis id="13DE7A7E02668107B0DDFDA6A4523272" bold="true">Abbreviations</emphasis>
: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. 
<emphasis id="30702E42ED9373E36F07001587924771" bold="true">Scale bars</emphasis>
: 0.2 mm.
</paragraph>
</caption>
</subSubSection>
<subSubSection id="SECID0ENIBI" type="etymology">
<paragraph id="1518E0B13405BF89C6BC9C2CF9AC3289">
<heading id="75E7AF92754B59601B8F1A5D3806BA92" reason="title">Etymology.</heading>
</paragraph>
<paragraph id="4CEFEB3F782B8BBB165639A3785946BD">
Latin “ 
<emphasis id="C3779A28047D5A0179DD12AD96AA9061" italics="true">longissimus</emphasis>
” is meaning “ the longest ”. The specific epithet refers to the coxal process of male leg-pair 7 being particularly long and relatively slender; ajective.
</paragraph>
</subSubSection>
<subSubSection id="SECID0E4IBI" type="description">
<paragraph id="8A83739D85E2A64C2252D0EBF40E444D">
<heading id="44391F319BDA83EFA9969285F4C4A5D9" reason="title">Description.</heading>
</paragraph>
<paragraph id="2B33755058DC54CA6FA73356BFB7A0D1">
Length of both sexes ca 25.0–40.0 mm, 
<quantity id="AC349CAAC980182D0FAFE984EF9A9D41" metricMagnitude="-3" metricUnit="m" metricValue="1.75" metricValueMax="1.9" metricValueMin="1.6" unit="mm" value="1.75" valueMax="1.9" valueMin="1.6">1.6–1.9 mm</quantity>
in diameter, body with 47–54 podous + 1 apodous rings + telson. Natural coloration (Fig. 
<figureCitation id="46FF1F010FFE7FBEB2E278ED9CD90747" captionStart="Figure 2" captionStartId="F2" captionText="Figure 2. Pictures of live animals, photos by Prof. Mingyi Tian from SCAU. A Skleroprotopus change sp. nov.; B Skleroprotopus megistus sp. nov.; C Skleroprotopus longissimus sp. nov.; D Skleroprotopus genjudi sp. nov.; E Skleroprotopus tiankeng sp. nov.; F Skleroprotopus laiyuanensis sp. nov.; G Skleroprotopus incisodentatus sp. nov." figureDoi="10.3897/asp.82.e136751.figure2" httpUri="https://binary.pensoft.net/fig/1201329">2 C</figureCitation>
) red brownish, in alcohol uniformly brown yellowish, prozona dark brownish, metazona yellowish. Antennae and legs light yellowish. Eye patches blackish, subtriangular, arranged in 4–7 irregular rows, altogether about 20–37 ommatidia per eye patch.
</paragraph>
<paragraph id="8CEB3E3665965C17AA1F59D76E71ED85">
Head capsule smooth and hairless, eyes slightly bulged, epicranial suture well-defined. Labral margin with 2 (3) + 2 (3) supra-labral and 9 + 9 labral setae. Antennae of medium length, reaching behind to anterior of ring 3 when stretched dorsally. In length, antennomeres 3&gt; 2&gt; 4 ≈ 5&gt; 6&gt; 1&gt; 7. Antennomeres 5 and 6 each with a distal corolla of sensilla basiconica. Mandibular stipes well-rounded, with two small lobes in males, more rounded in females. Gnathochilarium with at least 4 setae on each lamella lingualis (
<emphasis id="C19E1C13FFA3D28D2AF716F8636C25A3" bold="true">ll</emphasis>
); promentum (
<emphasis id="8051A4540F09E8F63FE9A7389C9107C7" bold="true">pr</emphasis>
) relatively narrow, lance-shaped at base, swollen anteriorly and cup-shaped in males (Fig. 
<figureCitation id="F61F6B396ACF772AE582721D1A8EF316" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 A</figureCitation>
), vs a slightly broadened and oblong rhomboid 
<emphasis id="82381AFBD59F0D218F609B8E504D20DF" bold="true">pr</emphasis>
in females (Fig. 
<figureCitation id="493004E8B0857A6CEA5CBED14AFF68F8" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 B</figureCitation>
).
</paragraph>
<paragraph id="5377F3012822C3E53ADE631E7ABE0BFB">Collum with 5–7 lower striae laterally, but lowest 2 striae not reaching the anterior margin. Prozona with 4–6 irregular subtransverse striae and metazona with 11–25 longitudinal striae laterally. Suture dividing pro- and metazona very narrow, a regular comb. Ozopores starting with ring 6, lying mid-laterally on sides of metatergites.</paragraph>
<paragraph id="16F3064F4E88E23C16D2791099E9D22B">Epiproct slightly protruding caudad, with 4 + 4 setae at posterior margin. Paraprocts convex, with 2 + 2 setae. Hypoproct eye-shaped, with 1 + 1 setae.</paragraph>
<paragraph id="890E40CD40F78A142D0F4BA0A7A5316C">
Legs long and slender, about 1.1 × as long as midbody height. Male leg-pair 1 (Fig. 
<figureCitation id="92FB26C1AC49FE553E2CFA52796CA85F" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 D</figureCitation>
) hypertrophied, 5 - segmented, strongly curved anteriad; coxa (
<emphasis id="E018C108A395CA2940C715635358A471" bold="true">cx</emphasis>
) and telopoditomeres 1 and 2 (
<emphasis id="50168FAF8D0235DF0A1F49817A31B2A1" bold="true">t 1</emphasis>
, 
<emphasis id="9785E368D80322E4E4D92F31839F8AEF" bold="true">t 2</emphasis>
) with some long setae. Telopoditomere 3 (
<emphasis id="52761A3D338228976362E6EF5882ADF0" bold="true">t 3</emphasis>
) longest, about as long as all other telopoditomeres combined; Telopoditomere 4 (
<emphasis id="249CB6162827004C85994EE567928D38" bold="true">t 4</emphasis>
) irregularly shaped, with two vague emarginations, one lateral, the other dorsal. Male leg-pair 2 (Fig. 
<figureCitation id="C59753E5556342F6930B7352279A9C23" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 E</figureCitation>
) reduced in size and very slender; penis (
<emphasis id="75556BF1F3A59B874F960F24CF71BED1" bold="true">pn</emphasis>
) shorter than coxae (
<emphasis id="0AD8EB117867AF71687F06DC1D958880" bold="true">cx</emphasis>
), distal part with three long setae. Male leg-pair 7 (Fig. 
<figureCitation id="DDDE8CB7D3EFB18331DF37070A7F6EF4" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 F</figureCitation>
) strongly modified, coxal process (
<emphasis id="AEECAF3263D0E9D22431D342BDFB5F1D" bold="true">cp</emphasis>
) extremely long and slender, crowned with a small hook facing anteriorly, strongly bent frontally, mostly subparallel-sided, considerably more slender, and free from setae along distal 2 / 3; telopodite (
<emphasis id="7A8A88C6C4173FCF4419A5BA6034EC4A" bold="true">te</emphasis>
) 1 - segmented, rather small, carrying a long apical seta.
</paragraph>
<paragraph id="D0E93D986893CE18C4391F3CF5CF4F9F">
Anterior gonopods (Fig. 
<figureCitation id="B18D944AF03AE7D5883ECD2219BA6DAB" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 G, H</figureCitation>
) with a medium length coxal process (
<emphasis id="8EADD2872BBEB505050C1CCD7E293DC4" bold="true">cp</emphasis>
), posteriorly carrying with an irregularly dentate membranous lobe (
<emphasis id="E5646C4A40534BA4205577757AD74809" bold="true">ml</emphasis>
), outer margin of 
<emphasis id="B2F68464F8CFFDD3BADAFDD6F04CDCFD" bold="true">ml</emphasis>
somewhat broadened and reflexed in proximal half, margin of reflexed part irregular. Flagellum (
<emphasis id="F2203DC7E6B054B31B300B4301D62CB9" bold="true">f</emphasis>
) very long and slender, distally serrate and branched. Telopodite (
<emphasis id="6B08D316784B45EFBABF95E8AFB16E3D" bold="true">te</emphasis>
) about 3 / 4 as long as 
<emphasis id="80D555E51B3D99445B00D8B4134121D5" bold="true">cp</emphasis>
, with long setae both apically and mesally, laterobasally with a minute remnant (
<emphasis id="8447BC386C64631B26F32B29B217C183" bold="true">r</emphasis>
) of a second podomere.
</paragraph>
<paragraph id="E9732330F744734A2F33950E68471B5A">
Posterior gonopods (Fig. 
<figureCitation id="22907C03F171416D30ED9ABB37719F03" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 I</figureCitation>
) erect, branched at tip, anterior branch smooth, with a pointed tip, posterior one densely setose.
</paragraph>
<paragraph id="A4F12282C433708D53652380D417C335">
Vulva (Fig. 
<figureCitation id="C49F1DCD5938178A699AEAE0B61D3F1C" captionStart="Figure 10" captionStartId="F10" captionText="Figure 10. Skleroprotopus longissimus sp. nov. . paratypes from Cave Bidongfeiyan Dong. A, D – I male paratype; B, C female paratype. A, B gnathochilarium; C right vulva, mesal view; D legs 1, anterior view; E legs 2 with penis, posterior view; F legs 7, anterior view; G anterior gonopods, anterior view; H anterior gonopods, posterior view; I posterior gonopods, anterior view. Abbreviations: cp, coxal process; cx, coxa; f, flagellum; ll, lamella lingualis; ml, membranous lobe; op, operculum; pn, penis; pr, promentum; r, remnant; t 1 – t 4, telopoditomeres 1–4; te, telopodite. Scale bars: 0.2 mm." figureDoi="10.3897/asp.82.e136751.figure10" httpUri="https://binary.pensoft.net/fig/1201337">10 C</figureCitation>
) as usual, with two parallel rows of short setae on both anterior and posterior surfaces, operculum (
<emphasis id="4A25A89C9FE96B407BCAC7829CBE6487" bold="true">op</emphasis>
) with several long setae distally.
</paragraph>
</subSubSection>
<subSubSection id="SECID0E2LBI" type="remarks">
<paragraph id="021A104451750AA420192370598D8A2C">
<heading id="E00BCB53FD7401D51F842B0E775772C3" reason="title">Remarks.</heading>
</paragraph>
<paragraph id="3813EB81A64B1000410C3947D66F3535">
Sidu Karst is located in the Bamianshan National Nature Reserve, being the largest cave group found so far in southern 
<collectingRegion id="C129E49B5AE790D91F6470C3B9CEA530" country="China" name="Hunan">Hunan</collectingRegion>
. As the antennae and legs of this species are apparently slender and unpigmented, albeit the body retains some pigment, 
<taxonomicName id="5E097A3BDAA5ED7A3017D33887701E9A" authorityName="Chen &amp; Zhao &amp; Golovatch &amp; Liu" authorityYear="2024" class="Diplopoda" family="Mongoliulidae" genus="Skleroprotopus" kingdom="Animalia" order="Julida" phylum="Arthropoda" rank="species" species="longissimus" status="sp. nov.">
<emphasis id="C635BC7DB8BCF11892C05ADF9CBF821B" italics="true">S. longissimus</emphasis>
</taxonomicName>
<emphasis id="60F728964740B972EE32A55D6E814419" bold="true">
<taxonomicNameLabel id="D7E7E653F7E9192AB517F027030EAE7B" rank="species">sp. nov.</taxonomicNameLabel>
</emphasis>
is considered a troglobite.
</paragraph>
</subSubSection>
</treatment>
</document>