<documentid="4B8AEABE6CEACA828F073BC11724D477"ID-CLB-Dataset="303655"ID-DOI="10.5252/zoosystema2024v46a23"ID-GBIF-Dataset="a09a56e8-aea6-4574-b583-ca084c7e3223"ID-ISSN="1638-9387"ID-Zenodo-Dep="13837101"ID-ZooBank="9195A8AB-6FA8-4828-B8D1-DDEC94E99A6D"IM.bibliography_approvedBy="felipe"IM.illustrations_approvedBy="felipe"IM.materialsCitations_approvedBy="felipe"IM.metadata_approvedBy="felipe"IM.taxonomicNames_approvedBy="felipe"IM.treatmentCitations_approvedBy="felipe"IM.treatments_approvedBy="felipe"checkinTime="1727253036749"checkinUser="plazi"docAuthor="Pati, Sameer K., Mitra, Santanu & Ng, Peter K. L."docDate="2024"docId="03F38788FFD3FFAFFF20FDEB4AEA2DDD"docLanguage="en"docName="zoosystema.2024.46.23.pdf"docOrigin="Zoosystema 46 (23)"docSource="https://sciencepress.mnhn.fr/sites/default/files/articles/pdf/zoosystema2024v46a23.pdf"docStyle="DocumentStyle:5CC576F744449C1860B4E72ABD884631.9:Zoosystema.2020-.journal_article.type1"docStyleId="5CC576F744449C1860B4E72ABD884631"docStyleName="Zoosystema.2020-.journal_article.type1"docStyleVersion="9"docTitle="Indochinamon beieri"docType="treatment"docVersion="7"lastPageNumber="596"masterDocId="FFCAFFF0FFD6FFA6FFCAFF9E4F402A36"masterDocTitle="Identity of the freshwater crab Indochinamon beieri (Pretzmann, 1966), with the description of a new genus and four new species from northeastern India (Decapoda, Brachyura, Potamidae)"masterLastPageNumber="615"masterPageNumber="589"pageNumber="592"updateTime="1732492638426"updateUser="ExternalLinkService"zenodo-license-document="CC0-1.0"zenodo-license-figures="CC0-1.0"zenodo-license-treatments="UNSPECIFIED">
<mods:titleid="60869E4BECC35B69529E4D9D0DC2E7FE">Identity of the freshwater crab Indochinamon beieri (Pretzmann, 1966), with the description of a new genus and four new species from northeastern India (Decapoda, Brachyura, Potamidae)</mods:title>
<mods:affiliationid="7E20D33CA9D856F64D497C2CC9C2FF08">Zoological Survey of India, Western Regional Centre, Akurdi, Pune 411 044 (India)</mods:affiliation>
<mods:namePartid="C594A1495EB87BA2114AB18508CB4FE7">Ng, Peter K. L.</mods:namePart>
<mods:affiliationid="5956C7D9D69A60F38F6D4757BD4B3B38">Lee Kong Chian Natural History Museum, National University of Singapore, 2 Conservatory Drive, Singapore 117377 (Republic of Singapore)</mods:affiliation>
<bibRefCitationid="EFCB4B6FFFD3FFA3FEC5FD514E9228D0"author="PRETZMANN G."box="[271,466,718,743]"pageId="5"pageNumber="592"pagination="4 - 6"refId="ref18619"refString="PRETZMANN G. 1966 a. - Einige neue Potamoniden (Crustacea) des Himalaya-Gebietes (Vorlaufige Mitteilung). Entomologisches Nachrichtenblatt, Wien 13: 4 - 6."type="journal article"year="1966">Pretzmann, 1966a: 5</bibRefCitation>
<bibRefCitationid="EFCB4B6FFFD3FFA3FE13FCD74D322956"author="BOTT R."box="[473,626,840,864]"pageId="5"pageNumber="592"pagination="1 - 338"refId="ref17402"refString="BOTT R. 1970. - Die Susswasserkrabben von Europa, Asien, Australien und ihre Stammesgeschichte. Eine Revision der Potamoidea und Parathelphusoidea (Crustacea, Decapoda). Abhandlungen der Senckenbergischen Naturforschenden Gesellschaft 526: 1 - 338."type="journal article"year="1970">Bott 1970: 163</bibRefCitation>
<treatmentCitationid="0AFB108FFFD3FFA3FEA7FC434D0629C3"author="YEO D. C. J. & NG P. K. L."box="[365,582,989,1013]"page="283"pageId="5"pageNumber="592"year="2007">
<bibRefCitationid="EFCB4B6FFFD3FFA3FEA7FC434D0629C3"author="YEO D. C. J. & NG P. K. L."box="[365,582,989,1013]"pageId="5"pageNumber="592"pagination="273 - 308"refId="ref18959"refString="YEO D. C. J. & NG P. K. L. 2007. - On the genus " Potamon " and allies in Indochina (Crustacea: Decapoda: Brachyura: Potamidae). Raffles Bulletin of Zoology 16 (Suppl.): 273 - 308."type="journal article"year="2007">Yeo & Ng 2007: 283</bibRefCitation>
</treatmentCitation>
(list). —
<treatmentCitationid="0AFB108FFFD3FFA3FD65FC434FAA2E39"author="NG P. K. L. & GUINOT D. & DAVIE P. J. F."page="163"pageId="5"pageNumber="592"year="2008">
<bibRefCitationid="EFCB4B6FFFD3FFA3FD65FC434FAA2E39"author="NG P. K. L. & GUINOT D. & DAVIE P. J. F."pageId="5"pageNumber="592"pagination="1 - 286"refId="ref18301"refString="NG P. K. L., GUINOT D. & DAVIE P. J. F. 2008. - Systema Brachyurorum: Part I. An annotated checklist of extant brachyuran crabs of the world. Raffles Bulletin of Zoology 17 (Suppl.): 1 - 286."type="journal article"year="2008">
<treatmentCitationid="0AFB108FFFD3FFA3FE87FC694D0A2E39"author="NG P. K. L. & WIN MAR"box="[333,586,1015,1039]"page="49"pageId="5"pageNumber="592"year="2018">
<bibRefCitationid="EFCB4B6FFFD3FFA3FE87FC694D0A2E39"author="NG P. K. L. & WIN MAR"box="[333,586,1015,1039]"pageId="5"pageNumber="592"pagination="47 - 63"refId="ref18175"refString="NG P. K. L. & WIN MAR 2018. - On a new species of freshwater crab, Indochinamon khinpyae, from northern Myanmar (Crustacea, Brachyura, Potamidae). ZooKeys 811: 47 - 63. https: // doi. org / 10.3897 / zookeys. 811.29187"type="journal article"year="2018">
<treatmentCitationid="0AFB108FFFD3FFA3FD66FC694FAA2E1C"author="PATI S. K. & MITRA S. & NG P. K. L."page="704"pageId="5"pageNumber="592"year="2020">
<bibRefCitationid="EFCB4B6FFFD3FFA3FD66FC694FAA2E1C"author="PATI S. K. & MITRA S. & NG P. K. L."pageId="5"pageNumber="592"pagination="703 - 725"refId="ref18471"refString="PATI S. K., MITRA S. & NG P. K. L. 2020. - The identity of the freshwater crab Indochinamon manipurense (Alcock, 1909), with description of a new species of Potamiscus Alcock, 1909, from Manipur state, India (Decapoda, Brachyura, Potamidae). Crustaceana 93 (7): 703 - 725. https: // doi. org / 10.1163 / 15685403 - bja 10009"type="journal article"year="2020">
<collectorNameid="26AF5348FFD3FFA3FE8DFB0F4E882E9E"box="[327,456,1168,1192]"pageId="5"pageNumber="592">F. H. Gravely</collectorName>
leg.;
<collectionCodeid="ED4BAE5BFFD3FFA3FE31FB0F4D7A2E9E"box="[507,570,1169,1192]"collectionName="United Kingdom, London, The Natural History Museum [formerly British Museum (Natural History)]"pageId="5"pageNumber="592">NHM</collectionCode>
<materialsCitationid="3B323CC3FFD3FFA3FE91FB454FBA2F11"collectorName="F. H. Gravely"country="Myanmar"county="Myawaddy district"elevation="366"latitude="16.154999"location="Myanmar-Thailand"longLatPrecision="21"longitude="98.59778"municipality="Dawna Hills"pageId="5"pageNumber="592"specimenCount="1"specimenCount-female="1"stateProvince="Kayin">
1.2 × medial length), with gently concave lateral margins (
<figureCitationid="13612A1BFFD3FFA3FF47F84A4FA12DDA"box="[141,225,2004,2029]"captionStart="FIG"captionStartId="6.[132,143,1985,2003]"captionTargetBox="[132,1455,215,1941]"captionTargetId="figure-80@6.[698,1267,789,1366]"captionTargetPageId="6"captionText="FIG. 2. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1): A, overall dorsal view; B, frontal view of cephalothorax; C, dorsal view of cephalothorax; D, s1-s7, pleonal somites 4-6, and telson. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837106"httpUri="https://zenodo.org/record/13837106/files/figure.png"pageId="5"pageNumber="592">Figs 2D</figureCitation>
;
<figureCitationid="13612A1BFFD3FFA3FF24F84B4E4E2DDB"box="[238,270,2005,2029]"captionStart="FIG"captionStartId="7.[132,143,1962,1980]"captionTargetBox="[132,1455,215,1920]"captionTargetId="figure-112@7.[698,1267,782,1352]"captionTargetPageId="7"captionText="FIG. 3. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1) (A-F), ♀ (31.3 × 25.2 mm) (NHM 1934.1.15.2) (G, H): A, right third maxilliped; B, pleon and telson; C, chela (outer view); D, s1-s8 showing right G1 in situ; E, left G1 (ventral view); F, left G2; G, pleonal somites 4-6 and telson; H, s1-s8 showing vulvae. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837113"httpUri="https://zenodo.org/record/13837113/files/figure.png"pageId="5"pageNumber="592">3B</figureCitation>
). G1 slender, with ultimate article gently curved outwards at angle of about 25° from longitudinal axis, tip blunt, reaching pleonal locking structure; ultimate article relatively slender, short,
<figureCitationid="13612A1BFFD3FFA3FADBFDC04A0A2841"box="[1297,1354,606,631]"captionStart="FIG"captionStartId="4.[146,157,1767,1785]"captionTargetBox="[189,1456,188,1740]"captionTargetId="figure-108@4.[735,1284,766,1327]"captionTargetPageId="4"captionText="FIG. 1. — Map showing Myanmar, India, northeastern India, and distribution of Indochinamon beieri (Pretzmann, 1966) and the species of Capitamon n. gen."figureDoi="http://doi.org/10.5281/zenodo.13837103"httpUri="https://zenodo.org/record/13837103/files/figure.png"pageId="5"pageNumber="592">Fig. 1</figureCitation>
<bibRefCitationid="EFCB4B6FFFD3FFA3FCE6FD284B4628E6"author="PRETZMANN G."box="[812,1030,693,720]"pageId="5"pageNumber="592"pagination="4 - 6"refId="ref18619"refString="PRETZMANN G. 1966 a. - Einige neue Potamoniden (Crustacea) des Himalaya-Gebietes (Vorlaufige Mitteilung). Entomologisches Nachrichtenblatt, Wien 13: 4 - 6."type="journal article"year="1966">Pretzmann (1966a: 5</bibRefCitation>
, 6), during his visit to the NHM between 1963 and 1964, briefly diagnosed a new species,
, 1934 coll.”, characterizing it by a G1 that was described as follows: “Gonopoden schlank, Subterminalglied am Ende fast rechtwinkelig nach aussen abgewinkelt. Terminalglied setzt diese Richtung fort. Innenkante stark ausgebuchtet, so dass der Umriss des Gonopoden an einen Vogelkopf erinnert. Innenkante des Subterminalgliedes dicht behaart bis zur Hälfte, Aussenkante mit einer Reihe langer Borsten.” [Gonopods slender, subterminal segment angled outwards almost at right angles at tip.Terminal member continues this direction. Inner edge strongly bulged, so that the outline of the gonopod resembles a bird’s head. Inner edge of subterminal segment densely haired up to halfway, outer edge with a row of long bristles.] (translation ours). No figures or catalogue number was provided in the original publication.
<bibRefCitationid="EFCB4B6FFFD3FFA3FB15FB2A4C182ED8"author="PRETZMANN G."pageId="5"pageNumber="592"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b: 301</bibRefCitation>
, pl. 4, figs 12-15) subsequently described the species in greater detail with figures of the specimen and its supposed G1. The G1 figured (
<bibRefCitationid="EFCB4B6FFFD3FFA3FBCDFA8A4B832F1B"author="PRETZMANN G."box="[1031,1219,1299,1326]"pageId="5"pageNumber="592"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann 1966b</bibRefCitation>
: pl. 4, fig. 12) matches his original description (
<bibRefCitationid="EFCB4B6FFFD3FFA3FBECFAAA4BB92F78"author="PRETZMANN G."box="[1062,1273,1331,1358]"pageId="5"pageNumber="592"pagination="4 - 6"refId="ref18619"refString="PRETZMANN G. 1966 a. - Einige neue Potamoniden (Crustacea) des Himalaya-Gebietes (Vorlaufige Mitteilung). Entomologisches Nachrichtenblatt, Wien 13: 4 - 6."type="journal article"year="1966">Pretzmann 1966a: 5</bibRefCitation>
, 6). No catalogue number was provided by
<bibRefCitationid="EFCB4B6FFFD3FFA3FBFDFACA4A482F5B"author="PRETZMANN G."box="[1079,1288,1363,1390]"pageId="5"pageNumber="592"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b)</bibRefCitation>
, but the figures he provided of the dorsal, frontal and ventral views of the specimen (see
<bibRefCitationid="EFCB4B6FFFD3FFA3FC0DFA0A4BC72F9B"author="PRETZMANN G."box="[967,1159,1427,1454]"pageId="5"pageNumber="592"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann 1966b</bibRefCitation>
: pl. 4, figs 13-15) perfectly match a male specimen in a jar with the catalogue number NHM 1934.1.15.1-2, which also contains a female (31.3
) collected at the same time. There are no labels inside the bottle indicating the specimen(s) was examined by Pretzmann or that the male is a type. This male specimen, measuring 29.3
agrees well in the measurements, and has a distinctive small round scar on the right side of the cardiac region (
<figureCitationid="13612A1BFFD3FFA3FCB4F90C4CAF2C9A"box="[894,1007,1682,1708]"captionStart="FIG"captionStartId="6.[132,143,1985,2003]"captionTargetBox="[132,1455,215,1941]"captionTargetId="figure-80@6.[698,1267,789,1366]"captionTargetPageId="6"captionText="FIG. 2. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1): A, overall dorsal view; B, frontal view of cephalothorax; C, dorsal view of cephalothorax; D, s1-s7, pleonal somites 4-6, and telson. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837106"httpUri="https://zenodo.org/record/13837106/files/figure.png"pageId="5"pageNumber="592">Fig. 2A, C</figureCitation>
; also see
<bibRefCitationid="EFCB4B6FFFD3FFA3FB85F90D4A4F2C9A"author="PRETZMANN G."box="[1103,1295,1682,1709]"pageId="5"pageNumber="592"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann 1966b</bibRefCitation>
: pl. 4, fig. 15). As such, we have no doubt this is the specimen
<bibRefCitationid="EFCB4B6FFFD3FFA3FAF6F92D4C372CDA"author="PRETZMANN G."pageId="5"pageNumber="592"pagination="4 - 6"refId="ref18619"refString="PRETZMANN G. 1966 a. - Einige neue Potamoniden (Crustacea) des Himalaya-Gebietes (Vorlaufige Mitteilung). Entomologisches Nachrichtenblatt, Wien 13: 4 - 6."type="journal article"year="1966">Pretzmann (1966a</bibRefCitation>
, with the number NHM 1934.1.15.2 assigned to the female. The female specimen is a not a type as it was not mentioned by
<bibRefCitationid="EFCB4B6FFFD3FFA3FC87F8EC4B542DBD"author="PRETZMANN G."box="[845,1044,1905,1932]"pageId="5"pageNumber="592"pagination="4 - 6"refId="ref18619"refString="PRETZMANN G. 1966 a. - Einige neue Potamoniden (Crustacea) des Himalaya-Gebietes (Vorlaufige Mitteilung). Entomologisches Nachrichtenblatt, Wien 13: 4 - 6."type="journal article"year="1966">Pretzmann (1966a</bibRefCitation>
, b). The type locality of the specimen should be “Sukli” [Su Ka Li], eastern side of Dawna Hills (not Dawane Hills), and in the original label, it states that this site is near the Myanmar-Thailand border.
<bibRefCitationid="EFCB4B6FFFDEFFAEFF51F96C4EE52D3A"author="PRETZMANN G."box="[155,421,1778,1804]"pageId="8"pageNumber="595"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b: 303</bibRefCitation>
” (dorsal, frontal and ventral views only, no G1) in his paper treating specimens from NHM, but no data was provided. The species, however, was not even mentioned by
<bibRefCitationid="EFCB4B6FFFDEFFAEFDF2F8EC4C452DBD"author="PRETZMANN G."box="[568,773,1905,1932]"pageId="8"pageNumber="595"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b)</bibRefCitation>
in the main text. We are certain this specimen is the one now catalogued in the NHM as “
<bibRefCitationid="EFCB4B6FFFDEFFAEFD77F84F4CDC2D3B"author="ALCOCK A."box="[701,924,1778,2027]"pageId="8"pageNumber="595"refId="ref17298"refString="ALCOCK A. 1910. - Catalogue of the Indian decapod Crustacea in the collection of the Indian Museum. Part I. Brachyura. Fasciculus II. The Indian fresh-water crabs - Potamonidae. Indian Museum, Calcutta, 135 p."type="book"year="1910">Alcock (1910: 35)</bibRefCitation>
under the “Indian Museum” [ZSIK] catalogue number 4115/4 from an unknown locality collected by “Captain Butler”. One of these male specimens was gifted to NHM and was catalogued as “1909.5.1.1”. The labels with the NHM specimen indicate it was determined by “A. Alcock”, “ex 4115/4” and presented by the Indian Museum, and the locality was stated as “
<bibRefCitationid="EFCB4B6FFFDFFFAFFDC6FE284DF42BE6"author="JOHNSTONE J."box="[524,692,438,464]"pageId="9"pageNumber="596"refId="ref17682"refString="JOHNSTONE J. 1896. - My Experiences in Manipur and the Naga Hills. Sampson Low, Marston and Company Ltd, London, 336 p."type="book"year="1896">Johnstone 1896</bibRefCitation>
;
<bibRefCitationid="EFCB4B6FFFDFFFAFFD09FE284FFB2BC6"author="BHATIA A."pageId="9"pageNumber="596"pagination="11 - 34"refId="ref17341"refString="BHATIA A. 2004. - Nagaland - A profile, in Nagaland State Human Development Report 2004. Department of Planning & Coordination, Government of Nagaland: 11 - 34."type="book chapter"year="2004">Bhatia 2004</bibRefCitation>
<bibRefCitationid="EFCB4B6FFFDFFFAFFEB1FE694D022826"author="PRETZMANN G."box="[379,578,502,529]"pageId="9"pageNumber="596"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b</bibRefCitation>
<bibRefCitationid="EFCB4B6FFFDFFFAFFF25FDC84EF32846"author="PRETZMANN G."box="[239,435,598,624]"pageId="9"pageNumber="596"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b</bibRefCitation>
(NHM 1934.1.15.1) is more slender and much straighter, with the ultimate article cylindrical and gently curved outwards (not bent at almost right angle to the penultimate article) (
<figureCitationid="13612A1BFFDFFFAFFD78FD4B4C4328C6"box="[690,771,725,752]"captionStart="FIG"captionStartId="7.[132,143,1962,1980]"captionTargetBox="[132,1455,215,1920]"captionTargetId="figure-112@7.[698,1267,782,1352]"captionTargetPageId="7"captionText="FIG. 3. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1) (A-F), ♀ (31.3 × 25.2 mm) (NHM 1934.1.15.2) (G, H): A, right third maxilliped; B, pleon and telson; C, chela (outer view); D, s1-s8 showing right G1 in situ; E, left G1 (ventral view); F, left G2; G, pleonal somites 4-6 and telson; H, s1-s8 showing vulvae. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837113"httpUri="https://zenodo.org/record/13837113/files/figure.png"pageId="9"pageNumber="596">Figs 3E</figureCitation>
;
<figureCitationid="13612A1BFFDFFFAFFF4EFD6B4FD22939"box="[132,146,757,783]"captionStart="FIG"captionStartId="8.[132,143,1682,1700]"captionTargetBox="[148,1445,215,1640]"captionTargetId="figure-242@8.[132,1455,199,1650]"captionTargetPageId="8"captionText="FIG. 4. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1): A, left G1 (ventral view); B, left G1 ultimate article (dorsal view); C, left G1 ultimate article (ventral view); D, left G2. Scale bar: A, D, 1 mm; B, C, 0.5 mm."figureDoi="http://doi.org/10.5281/zenodo.13837115"httpUri="https://zenodo.org/record/13837115/files/figure.png"pageId="9"pageNumber="596">4</figureCitation>
A-C). The G1 he figured (
<bibRefCitationid="EFCB4B6FFFDFFFAFFE6DFD6B4D2A2939"author="PRETZMANN G."box="[423,618,757,783]"pageId="9"pageNumber="596"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann 1966b</bibRefCitation>
: pl. 4, fig. 12), actually belongs to NHM 1909.5.1.1 (
<figureCitationid="13612A1BFFDFFFAFFDD3FC8B4D262919"box="[537,614,789,815]"captionStart="FIG"captionStartId="16.[132,143,1985,2003]"captionTargetBox="[132,1455,215,1943]"captionTargetId="figure-89@16.[698,1267,760,1307]"captionTargetPageId="16"captionText="FIG. 8. — Capitamon clarki n. gen., n. sp., holotype ♂ (42.1 × 32.9 mm) (NHM 1909.5.1.1): A, overall dorsal view; B, s1-s7, pleonal somites 4-6, and telson; C, left G1 (ventral view); D, left G2; E, s1-s8 showing right G1 in situ. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837126"httpUri="https://zenodo.org/record/13837126/files/figure.png"pageId="9"pageNumber="596">Fig. 8C</figureCitation>
). Although the left G1s of both specimens had been detached and placed in separate vials in their respective jars (leading to the possibility they had been accidentally misplaced), it is fortunate that the right G1s are still attached to the specimens (
<figureCitationid="13612A1BFFDFFFAFFD9FFC0B4DEA2999"box="[597,682,917,943]"captionStart="FIG"captionStartId="7.[132,143,1962,1980]"captionTargetBox="[132,1455,215,1920]"captionTargetId="figure-112@7.[698,1267,782,1352]"captionTargetPageId="7"captionText="FIG. 3. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1) (A-F), ♀ (31.3 × 25.2 mm) (NHM 1934.1.15.2) (G, H): A, right third maxilliped; B, pleon and telson; C, chela (outer view); D, s1-s8 showing right G1 in situ; E, left G1 (ventral view); F, left G2; G, pleonal somites 4-6 and telson; H, s1-s8 showing vulvae. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837113"httpUri="https://zenodo.org/record/13837113/files/figure.png"pageId="9"pageNumber="596">Figs 3D</figureCitation>
;
<figureCitationid="13612A1BFFDFFFAFFD79FC0B4D922999"box="[691,722,917,943]"captionStart="FIG"captionStartId="16.[132,143,1985,2003]"captionTargetBox="[132,1455,215,1943]"captionTargetId="figure-89@16.[698,1267,760,1307]"captionTargetPageId="16"captionText="FIG. 8. — Capitamon clarki n. gen., n. sp., holotype ♂ (42.1 × 32.9 mm) (NHM 1909.5.1.1): A, overall dorsal view; B, s1-s7, pleonal somites 4-6, and telson; C, left G1 (ventral view); D, left G2; E, s1-s8 showing right G1 in situ. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837126"httpUri="https://zenodo.org/record/13837126/files/figure.png"pageId="9"pageNumber="596">8E</figureCitation>
) and confirm our interpretation.
<bibRefCitationid="EFCB4B6FFFDFFFAFFE66FC2B4D2F29F9"author="PRETZMANN G."box="[428,623,949,975]"pageId="9"pageNumber="596"pagination="4 - 6"refId="ref18619"refString="PRETZMANN G. 1966 a. - Einige neue Potamoniden (Crustacea) des Himalaya-Gebietes (Vorlaufige Mitteilung). Entomologisches Nachrichtenblatt, Wien 13: 4 - 6."type="journal article"year="1966">Pretzmann (1966a</bibRefCitation>
. This observation is also aligned with the discussion earlier that specimen NHM 1909.5.1.1 was likely to have been collected from Nagaland or its environs rather than
<bibRefCitationid="EFCB4B6FFFDFFFAFFE71FBEB4DC52EB8"author="PRETZMANN G."box="[443,645,1140,1167]"pageId="9"pageNumber="596"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b)</bibRefCitation>
<bibRefCitationid="EFCB4B6FFFDFFFAFFD7CFB6D4F8B2F18"author="BRANDIS D."pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis (2000)</bibRefCitation>
followedPretzmann (1966a, b) in characterizing the species as one with a sharply bent G1 ultimate article and provided figures for the SMF 2807 male specimen, including its G1 (see
<bibRefCitationid="EFCB4B6FFFDFFFAFFF49FAED4E522FBB"author="BRANDIS D."box="[131,274,1395,1421]"pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis 2000</bibRefCitation>
: pl. 10, fig. 2a-c).
<bibRefCitationid="EFCB4B6FFFDFFFAFFE11FAED4DE22FBB"author="BRANDIS D."box="[475,674,1395,1422]"pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis (2000: 78)</bibRefCitation>
is the terminal joint of the G1. Here a true torsion of the terminal joint turns the whole joint at 180° in relation to the subterminal joint. Due to this torsion the original dorsal side appears ventrally. This special character does not occur in any other potamid crab as far as known. It must have a special function in copulation process that only could be studied with live specimens.”
<bibRefCitationid="EFCB4B6FFFDFFFAFFDA0F9CC4C452C5A"author="BRANDIS D."box="[618,773,1618,1644]"pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis (2000)</bibRefCitation>
noted that
<bibRefCitationid="EFCB4B6FFFDFFFAFFF3CF9ED4EE12CBA"author="BOTT R."box="[246,417,1650,1677]"pageId="9"pageNumber="596"pagination="469 - 509"refId="ref17374"refString="BOTT R. 1966. - Potamiden aus Asien (Potamon Savigny und Potamiscus Alcock). Senckenbergiana Biologica 47 (6): 469 - 509."type="journal article"year="1966">Bott (1966: 481</bibRefCitation>
, fig. 15; 1970: 163, pl. 38, fig. 35; pl. 47, fig. 31) –who also provided figures for the SMF 2807 male specimen– had misidentified the species as “
<bibRefCitationid="EFCB4B6FFFDFFFAFFE68F94C4D822CDA"author="TURKAY M. & NAIYANETR P."box="[418,706,1746,1772]"pageId="9"pageNumber="596"pagination="389 - 396"refId="ref18728"refString="TURKAY M. & NAIYANETR P. 1987. - The identity of Potamon rangoonense Rathbun 1904 and Thelphusa larnaudii A. Milne- Edwards 1869, with introduction of Neolarnaudia botti n. g. n. sp. Senckenbergiana Biologica 67 (4 / 6): 389 - 396."type="journal article"year="1987">Türkay & Naiyanetr (1987)</bibRefCitation>
, while citing
<bibRefCitationid="EFCB4B6FFFDFFFAFFF09F96C4EC32D3A"author="PRETZMANN G."box="[195,387,1778,1804]"pageId="9"pageNumber="596"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b</bibRefCitation>
: pl.4, fig.12), observed that the G1 of the SMF 2807 male specimen is very similar to that of
, with only difference in the angle between the ultimate and penultimate articles.
<bibRefCitationid="EFCB4B6FFFDFFFAFFE9BF8CF4D2A2D5A"author="TURKAY M. & NAIYANETR P."box="[337,618,1873,1900]"pageId="9"pageNumber="596"pagination="389 - 396"refId="ref18728"refString="TURKAY M. & NAIYANETR P. 1987. - The identity of Potamon rangoonense Rathbun 1904 and Thelphusa larnaudii A. Milne- Edwards 1869, with introduction of Neolarnaudia botti n. g. n. sp. Senckenbergiana Biologica 67 (4 / 6): 389 - 396."type="journal article"year="1987">Türkay& Naiyanetr (1987)</bibRefCitation>
argued that the said difference could be due to size differences and treated the SMF 2807 specimen as
<bibRefCitationid="EFCB4B6FFFDFFFAFFDEBF82F4DE92DFD"author="ALCOCK A."box="[545,681,1969,1995]"pageId="9"pageNumber="596"pagination="243 - 252"refId="ref17242"refString="ALCOCK A. 1909. - Diagnoses of new species and varieties of freshwater crabs. Nos. 1 - 3. Records of the Indian Museum 3 (3): 243 - 252. https: // doi. org / 10.26515 / rzsi / v 3 / i 3 / 1909 / 163275"type="journal article"year="1909">Alcock, 1909</bibRefCitation>
or SMF 2807 specimen in G1 structure, and the species has already been assigned to
<taxonomicNameid="4C5A4D1DFFDFFFAFFBE4FF694AC12B27"authority="Yeo & Naiyanetr, 2000"authorityName="Yeo & Naiyanetr"authorityYear="2000"box="[1070,1409,247,274]"class="Malacostraca"family="Potamidae"genus="Stelomon"kingdom="Animalia"order="Decapoda"pageId="9"pageNumber="596"phylum="Arthropoda"rank="genus">
<bibRefCitationid="EFCB4B6FFFDFFFAFFB45FF664AC12B27"author="YEO D. C. J. & NAIYANETR P."box="[1167,1409,247,274]"pageId="9"pageNumber="596"pagination="1625 - 1637"refId="ref18780"refString="YEO D. C. J. & NAIYANETR P. 2000. - A new genus of freshwater crab (Crustacea: Decapoda: Brachyura: Potamidae) from Thailand, with a description of a new species. Journal of Natural History 34 (8): 1625 - 1637. https: // doi. org / 10.1080 / 00222930050117521"type="journal article"year="2000">Yeo & Naiyanetr, 2000</bibRefCitation>
</taxonomicName>
(see
<bibRefCitationid="EFCB4B6FFFDFFFAFFCE7FE864B1E2B07"author="YEO D. C. J. & NAIYANETR P."box="[813,1118,279,306]"pageId="9"pageNumber="596"pagination="1625 - 1637"refId="ref18780"refString="YEO D. C. J. & NAIYANETR P. 2000. - A new genus of freshwater crab (Crustacea: Decapoda: Brachyura: Potamidae) from Thailand, with a description of a new species. Journal of Natural History 34 (8): 1625 - 1637. https: // doi. org / 10.1080 / 00222930050117521"type="journal article"year="2000">Yeo & Naiyanetr 2000: 1630</bibRefCitation>
, fig. 3c). Neither
<bibRefCitationid="EFCB4B6FFFDFFFAFFAD8FE894CFB2B67"author="TURKAY M. & NAIYANETR P."pageId="9"pageNumber="596"pagination="389 - 396"refId="ref18728"refString="TURKAY M. & NAIYANETR P. 1987. - The identity of Potamon rangoonense Rathbun 1904 and Thelphusa larnaudii A. Milne- Edwards 1869, with introduction of Neolarnaudia botti n. g. n. sp. Senckenbergiana Biologica 67 (4 / 6): 389 - 396."type="journal article"year="1987">Türkay & Naiyanetr (1987)</bibRefCitation>
nor
<bibRefCitationid="EFCB4B6FFFDFFFAFFC21FEA94BC72B67"author="BRANDIS D."box="[1003,1159,311,337]"pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis (2000)</bibRefCitation>
as they were referring to the G1 described or illustrated in
<bibRefCitationid="EFCB4B6FFFDFFFAFFCE1FEE94CA72BA7"author="PRETZMANN G."box="[811,999,375,401]"pageId="9"pageNumber="596"pagination="4 - 6"refId="ref18619"refString="PRETZMANN G. 1966 a. - Einige neue Potamoniden (Crustacea) des Himalaya-Gebietes (Vorlaufige Mitteilung). Entomologisches Nachrichtenblatt, Wien 13: 4 - 6."type="journal article"year="1966">Pretzmann (1966a</bibRefCitation>
, b), which belonged to the NHM1909.5.1.1 specimen and was not that of the
<bibRefCitationid="EFCB4B6FFFDFFFAFFAEBFE684AF12826"author="MITRA S."box="[1313,1457,502,528]"pageId="9"pageNumber="596"pagination="1 - 76"refId="ref17710"refString="MITRA S. 2017. - Freshwater crabs (Crustacea: Decapoda: Gecarcinucidae and Potamidae) of Mizoram. Records of the Zoological Survey of India, Occasional Paper 382: 1 - 76."type="journal article"year="2017">Mitra (2017)</bibRefCitation>
<bibRefCitationid="EFCB4B6FFFDFFFAFFC8DFD484B4928D9"author="PRETZMANN G."box="[839,1033,725,752]"pageId="9"pageNumber="596"pagination="299 - 303"refId="ref18649"refString="PRETZMANN G. 1966 b. - Susswasserkrabben aus dem westlichen Himalayagebiet. Annalen des Naturhistorischen Museums in Wien 69: 299 - 303."type="journal article"year="1966">Pretzmann (1966b</bibRefCitation>
: pl. 4, fig. 12) is another major reason for the previous misunderstanding of what the species is. The actual identities of these misidentified specimens are now revealed.The NMB 951a male specimen from Naga Hills has already been refereed to
<bibRefCitationid="EFCB4B6FFFDFFFAFFC81FC2B4C9429F9"author="MITRA S."box="[843,980,949,975]"pageId="9"pageNumber="596"pagination="1 - 76"refId="ref17710"refString="MITRA S. 2017. - Freshwater crabs (Crustacea: Decapoda: Gecarcinucidae and Potamidae) of Mizoram. Records of the Zoological Survey of India, Occasional Paper 382: 1 - 76."type="journal article"year="2017">Mitra (2017)</bibRefCitation>
<taxonomicNameid="4C5A4D1DFFDFFFAFFCBEFC4B4CA529D9"authorityName="Pati & Peter & L."authorityYear="2024"box="[884,997,981,1007]"class="Malacostraca"family="Potamidae"genus="Capitamon"kingdom="Animalia"order="Decapoda"pageId="9"pageNumber="596"phylum="Arthropoda"rank="genus"status="gen. nov.">
<taxonomicNameid="4C5A4D1DFFDFFFAFFB29FC4B4A1429D9"authorityName="Pati & Peter & L."authorityYear="2024"box="[1251,1364,981,1007]"class="Malacostraca"family="Potamidae"genus="Capitamon"kingdom="Animalia"order="Decapoda"pageId="9"pageNumber="596"phylum="Arthropoda"rank="genus"status="gen. nov.">
<taxonomicNameid="4C5A4D1DFFDFFFAFFB0EFBEB4CDB2E98"authority="Ng & Win Mar, 2018"authorityName="Ng & Win Mar"authorityYear="2018"class="Malacostraca"family="Potamidae"genus="Indochinamon"kingdom="Animalia"order="Decapoda"pageId="9"pageNumber="596"phylum="Arthropoda"rank="species"species="khinpyae">
<bibRefCitationid="EFCB4B6FFFDFFFAFFAF0FBEB4CDB2E98"author="NG P. K. L. & WIN MAR"pageId="9"pageNumber="596"pagination="47 - 63"refId="ref18175"refString="NG P. K. L. & WIN MAR 2018. - On a new species of freshwater crab, Indochinamon khinpyae, from northern Myanmar (Crustacea, Brachyura, Potamidae). ZooKeys 811: 47 - 63. https: // doi. org / 10.3897 / zookeys. 811.29187"type="journal article"year="2018">Ng & Win Mar, 2018</bibRefCitation>
<taxonomicNameid="4C5A4D1DFFDFFFAFFC68FB4A4A312ED8"authority="Naruse, Nguyen & Yeo, 2011"authorityName="Naruse, Nguyen & Yeo"authorityYear="2011"box="[930,1393,1236,1262]"class="Malacostraca"family="Potamidae"genus="Indochinamon"kingdom="Animalia"order="Decapoda"pageId="9"pageNumber="596"phylum="Arthropoda"rank="species"species="phongnha">
] due to the relatively shorter and slenderer ultimate article (
<figureCitationid="13612A1BFFDFFFAFFCB7FAAD4C8E2F78"box="[893,974,1331,1358]"captionStart="FIG"captionStartId="7.[132,143,1962,1980]"captionTargetBox="[132,1455,215,1920]"captionTargetId="figure-112@7.[698,1267,782,1352]"captionTargetPageId="7"captionText="FIG. 3. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1) (A-F), ♀ (31.3 × 25.2 mm) (NHM 1934.1.15.2) (G, H): A, right third maxilliped; B, pleon and telson; C, chela (outer view); D, s1-s8 showing right G1 in situ; E, left G1 (ventral view); F, left G2; G, pleonal somites 4-6 and telson; H, s1-s8 showing vulvae. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837113"httpUri="https://zenodo.org/record/13837113/files/figure.png"pageId="9"pageNumber="596">Figs 3E</figureCitation>
;
<figureCitationid="13612A1BFFDFFFAFFC12FAAD4CA62F7B"box="[984,998,1331,1357]"captionStart="FIG"captionStartId="8.[132,143,1682,1700]"captionTargetBox="[148,1445,215,1640]"captionTargetId="figure-242@8.[132,1455,199,1650]"captionTargetPageId="8"captionText="FIG. 4. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1): A, left G1 (ventral view); B, left G1 ultimate article (dorsal view); C, left G1 ultimate article (ventral view); D, left G2. Scale bar: A, D, 1 mm; B, C, 0.5 mm."figureDoi="http://doi.org/10.5281/zenodo.13837115"httpUri="https://zenodo.org/record/13837115/files/figure.png"pageId="9"pageNumber="596">4</figureCitation>
A-C; see
<bibRefCitationid="EFCB4B6FFFDFFFAFFB89FAAA4BAB2F7B"author="YEO D. C. J. & NG P. K. L."box="[1091,1259,1331,1358]"pageId="9"pageNumber="596"pagination="627 - 650"refId="ref18843"refString="YEO D. C. J. & NG P. K. L. 1998. - Freshwater crabs of the Potamon tannanti species group (Crustacea: Decapoda: Brachyura: Potamidae) from northern Indochina. Raffles Bulletin of Zoology 46 (2): 627 - 650."type="journal article"year="1998">Yeo & Ng 1998</bibRefCitation>
: fig. 2i;
<bibRefCitationid="EFCB4B6FFFDFFFAFFA8BFAAD4AE72F7B"author="DAI A. Y."box="[1345,1447,1331,1357]"pageId="9"pageNumber="596"refId="ref17482"refString="DAI A. Y. 1999. - Fauna Sinica: Arthropoda Crustacea Malacostraca Decapoda Parathelphusidae Potamidae. Science Press, Beijing, 501 p. [in Chinese]."type="book"year="1999">Dai 1999</bibRefCitation>
: figs 86 (4); 98 (4);
<bibRefCitationid="EFCB4B6FFFDFFFAFFC39FACD4BC42F5B"author="BRANDIS D."box="[1011,1156,1363,1389]"pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis 2000</bibRefCitation>
: pl. 13, fig. 2c;
<bibRefCitationid="EFCB4B6FFFDFFFAFFAE0FACA4C252FBB"author="NARUSE T. & QUYNH N. X. & YEO D. C. J."pageId="9"pageNumber="596"pagination="33 - 48"refId="ref17936"refString="NARUSE T., QUYNH N. X. & YEO D. C. J. 2011. - Three new species of Indochinamon Yeo & Ng, 2007 (Crustacea: Brachyura: Potamoidea: Potamidae) from Vietnam, with a redescription of Ranguna (Ranguna) kimboiensis Dang, 1975. Zootaxa 2372 (1): 33 - 48. https: // doi. org / 10.11646 / zootaxa. 2732.1.3"type="journal article"year="2011">
<bibRefCitationid="EFCB4B6FFFDFFFAFFC22FAEA4B8C2FBB"author="NG P. K. L. & WIN MAR"box="[1000,1228,1395,1422]"pageId="9"pageNumber="596"pagination="47 - 63"refId="ref18175"refString="NG P. K. L. & WIN MAR 2018. - On a new species of freshwater crab, Indochinamon khinpyae, from northern Myanmar (Crustacea, Brachyura, Potamidae). ZooKeys 811: 47 - 63. https: // doi. org / 10.3897 / zookeys. 811.29187"type="journal article"year="2018">
is nevertheless distinguished from all the above species mainly by the gently curved ultimate article, i.e., curved outwards at an angle of about 25° from longitudinal axis of the G1 (
<figureCitationid="13612A1BFFDFFFAFFAE9FA6D4A382C3B"box="[1315,1400,1523,1549]"captionStart="FIG"captionStartId="7.[132,143,1962,1980]"captionTargetBox="[132,1455,215,1920]"captionTargetId="figure-112@7.[698,1267,782,1352]"captionTargetPageId="7"captionText="FIG. 3. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1) (A-F), ♀ (31.3 × 25.2 mm) (NHM 1934.1.15.2) (G, H): A, right third maxilliped; B, pleon and telson; C, chela (outer view); D, s1-s8 showing right G1 in situ; E, left G1 (ventral view); F, left G2; G, pleonal somites 4-6 and telson; H, s1-s8 showing vulvae. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837113"httpUri="https://zenodo.org/record/13837113/files/figure.png"pageId="9"pageNumber="596">Figs 3E</figureCitation>
;
<figureCitationid="13612A1BFFDFFFAFFA4CFA6D4AE72C3B"box="[1414,1447,1523,1549]"captionStart="FIG"captionStartId="8.[132,143,1682,1700]"captionTargetBox="[148,1445,215,1640]"captionTargetId="figure-242@8.[132,1455,199,1650]"captionTargetPageId="8"captionText="FIG. 4. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1): A, left G1 (ventral view); B, left G1 ultimate article (dorsal view); C, left G1 ultimate article (ventral view); D, left G2. Scale bar: A, D, 1 mm; B, C, 0.5 mm."figureDoi="http://doi.org/10.5281/zenodo.13837115"httpUri="https://zenodo.org/record/13837115/files/figure.png"pageId="9"pageNumber="596">4A</figureCitation>
) (vs G1 ultimate article relatively strongly bent at an angle of about 45-60° from longitudinal axis; see
<bibRefCitationid="EFCB4B6FFFDFFFAFFB37F9AD4AE82C7B"author="YEO D. C. J. & NG P. K. L."box="[1277,1448,1587,1613]"pageId="9"pageNumber="596"pagination="627 - 650"refId="ref18843"refString="YEO D. C. J. & NG P. K. L. 1998. - Freshwater crabs of the Potamon tannanti species group (Crustacea: Decapoda: Brachyura: Potamidae) from northern Indochina. Raffles Bulletin of Zoology 46 (2): 627 - 650."type="journal article"year="1998">Yeo & Ng 1998</bibRefCitation>
: fig. 2i;
<bibRefCitationid="EFCB4B6FFFDFFFAFFCB7F9CC4CA42C5A"author="DAI A. Y."box="[893,996,1618,1644]"pageId="9"pageNumber="596"refId="ref17482"refString="DAI A. Y. 1999. - Fauna Sinica: Arthropoda Crustacea Malacostraca Decapoda Parathelphusidae Potamidae. Science Press, Beijing, 501 p. [in Chinese]."type="book"year="1999">Dai 1999</bibRefCitation>
: figs 86 (4); 98 (4);
<bibRefCitationid="EFCB4B6FFFDFFFAFFB0DF9CC4A192C5A"author="BRANDIS D."box="[1223,1369,1618,1644]"pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis 2000</bibRefCitation>
: pl. 13, fig. 2c;
<bibRefCitationid="EFCB4B6FFFDFFFAFFCB3F9ED4B7B2CBA"author="NARUSE T. & QUYNH N. X. & YEO D. C. J."box="[889,1083,1650,1677]"pageId="9"pageNumber="596"pagination="33 - 48"refId="ref17936"refString="NARUSE T., QUYNH N. X. & YEO D. C. J. 2011. - Three new species of Indochinamon Yeo & Ng, 2007 (Crustacea: Brachyura: Potamoidea: Potamidae) from Vietnam, with a redescription of Ranguna (Ranguna) kimboiensis Dang, 1975. Zootaxa 2372 (1): 33 - 48. https: // doi. org / 10.11646 / zootaxa. 2732.1.3"type="journal article"year="2011">
<bibRefCitationid="EFCB4B6FFFDFFFAFFB0BF9ED4AE72CBA"author="NG P. K. L. & WIN MAR"box="[1217,1447,1650,1677]"pageId="9"pageNumber="596"pagination="47 - 63"refId="ref18175"refString="NG P. K. L. & WIN MAR 2018. - On a new species of freshwater crab, Indochinamon khinpyae, from northern Myanmar (Crustacea, Brachyura, Potamidae). ZooKeys 811: 47 - 63. https: // doi. org / 10.3897 / zookeys. 811.29187"type="journal article"year="2018">
can be also distinguished from all of them, except for
<taxonomicNameid="4C5A4D1DFFDFFFAFFCE1F94D4CE02CDA"authorityName="Ng & Win Mar"authorityYear="2018"box="[811,928,1746,1772]"class="Malacostraca"family="Potamidae"genus="Indochinamon"kingdom="Animalia"order="Decapoda"pageId="9"pageNumber="596"phylum="Arthropoda"rank="species"species="khinpyae">
, by the abruptly narrow tip of the G1 ultimate article (
<figureCitationid="13612A1BFFDFFFAFFC4BF96C4C972D3A"box="[897,983,1778,1804]"captionStart="FIG"captionStartId="7.[132,143,1962,1980]"captionTargetBox="[132,1455,215,1920]"captionTargetId="figure-112@7.[698,1267,782,1352]"captionTargetPageId="7"captionText="FIG. 3. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1) (A-F), ♀ (31.3 × 25.2 mm) (NHM 1934.1.15.2) (G, H): A, right third maxilliped; B, pleon and telson; C, chela (outer view); D, s1-s8 showing right G1 in situ; E, left G1 (ventral view); F, left G2; G, pleonal somites 4-6 and telson; H, s1-s8 showing vulvae. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837113"httpUri="https://zenodo.org/record/13837113/files/figure.png"pageId="9"pageNumber="596">Figs 3E</figureCitation>
;
<figureCitationid="13612A1BFFDFFFAFFC2EF96C4CB22D3A"box="[996,1010,1778,1804]"captionStart="FIG"captionStartId="8.[132,143,1682,1700]"captionTargetBox="[148,1445,215,1640]"captionTargetId="figure-242@8.[132,1455,199,1650]"captionTargetPageId="8"captionText="FIG. 4. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1): A, left G1 (ventral view); B, left G1 ultimate article (dorsal view); C, left G1 ultimate article (ventral view); D, left G2. Scale bar: A, D, 1 mm; B, C, 0.5 mm."figureDoi="http://doi.org/10.5281/zenodo.13837115"httpUri="https://zenodo.org/record/13837115/files/figure.png"pageId="9"pageNumber="596">4</figureCitation>
A-C; see
<bibRefCitationid="EFCB4B6FFFDFFFAFFB91F96C4A0F2D3A"author="NG P. K. L. & WIN MAR"box="[1115,1359,1778,1804]"pageId="9"pageNumber="596"pagination="47 - 63"refId="ref18175"refString="NG P. K. L. & WIN MAR 2018. - On a new species of freshwater crab, Indochinamon khinpyae, from northern Myanmar (Crustacea, Brachyura, Potamidae). ZooKeys 811: 47 - 63. https: // doi. org / 10.3897 / zookeys. 811.29187"type="journal article"year="2018">
: fig. 4b) (vs G1 ultimate article with a gradually narrow tip; seeYeo & Ng 1998: fig. 2i;
<bibRefCitationid="EFCB4B6FFFDFFFAFFC2AF8AF4B062D7A"author="DAI A. Y."box="[992,1094,1841,1868]"pageId="9"pageNumber="596"refId="ref17482"refString="DAI A. Y. 1999. - Fauna Sinica: Arthropoda Crustacea Malacostraca Decapoda Parathelphusidae Potamidae. Science Press, Beijing, 501 p. [in Chinese]."type="book"year="1999">Dai 1999</bibRefCitation>
: figs 86 (4); 98 (4);
<bibRefCitationid="EFCB4B6FFFDFFFAFFADDF8AF4AE62D7A"author="BRANDIS D."box="[1303,1446,1841,1868]"pageId="9"pageNumber="596"pagination="57 - 100"refId="ref17443"refString="BRANDIS D. 2000. - The taxonomical status of the freshwater crab genus Potamiscus Alcock, 1909 (Decapoda, Brachyura, Potamidae). Senckenbergiana Biologica 80 (1 / 2): 57 - 100."type="journal article"year="2000">Brandis 2000</bibRefCitation>
: pl. 13, fig. 2c;
<bibRefCitationid="EFCB4B6FFFDFFFAFFC1AF8CC4BD72D5A"author="NARUSE T. & QUYNH N. X. & YEO D. C. J."box="[976,1175,1873,1900]"pageId="9"pageNumber="596"pagination="33 - 48"refId="ref17936"refString="NARUSE T., QUYNH N. X. & YEO D. C. J. 2011. - Three new species of Indochinamon Yeo & Ng, 2007 (Crustacea: Brachyura: Potamoidea: Potamidae) from Vietnam, with a redescription of Ranguna (Ranguna) kimboiensis Dang, 1975. Zootaxa 2372 (1): 33 - 48. https: // doi. org / 10.11646 / zootaxa. 2732.1.3"type="journal article"year="2011">
<taxonomicNameid="4C5A4D1DFFDFFFAFFC32F80C4B282D9D"authorityName="Ng & Win Mar"authorityYear="2018"box="[1016,1128,1937,1963]"class="Malacostraca"family="Potamidae"genus="Indochinamon"kingdom="Animalia"order="Decapoda"pageId="9"pageNumber="596"phylum="Arthropoda"rank="species"species="khinpyae">
by the relatively slender penultimate article of the G1 (
<figureCitationid="13612A1BFFDFFFAFFBFDF82F4BC92DFA"box="[1079,1161,1969,1996]"captionStart="FIG"captionStartId="7.[132,143,1962,1980]"captionTargetBox="[132,1455,215,1920]"captionTargetId="figure-112@7.[698,1267,782,1352]"captionTargetPageId="7"captionText="FIG. 3. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1) (A-F), ♀ (31.3 × 25.2 mm) (NHM 1934.1.15.2) (G, H): A, right third maxilliped; B, pleon and telson; C, chela (outer view); D, s1-s8 showing right G1 in situ; E, left G1 (ventral view); F, left G2; G, pleonal somites 4-6 and telson; H, s1-s8 showing vulvae. Not to scale."figureDoi="http://doi.org/10.5281/zenodo.13837113"httpUri="https://zenodo.org/record/13837113/files/figure.png"pageId="9"pageNumber="596">Figs 3E</figureCitation>
;
<figureCitationid="13612A1BFFDFFFAFFB5EF82F4BE22DFD"box="[1172,1186,1969,1995]"captionStart="FIG"captionStartId="8.[132,143,1682,1700]"captionTargetBox="[148,1445,215,1640]"captionTargetId="figure-242@8.[132,1455,199,1650]"captionTargetPageId="8"captionText="FIG. 4. — Indochinamon beieri (Pretzmann, 1966), holotype ♂ (29.3 × 23.6 mm) (NHM 1934.1.15.1): A, left G1 (ventral view); B, left G1 ultimate article (dorsal view); C, left G1 ultimate article (ventral view); D, left G2. Scale bar: A, D, 1 mm; B, C, 0.5 mm."figureDoi="http://doi.org/10.5281/zenodo.13837115"httpUri="https://zenodo.org/record/13837115/files/figure.png"pageId="9"pageNumber="596">4</figureCitation>
A-C) (vs G1 penultimate article relatively stouter; see
<bibRefCitationid="EFCB4B6FFFDFFFAFFB96F84C4A072DDD"author="NG P. K. L. & WIN MAR"box="[1116,1351,2001,2028]"pageId="9"pageNumber="596"pagination="47 - 63"refId="ref18175"refString="NG P. K. L. & WIN MAR 2018. - On a new species of freshwater crab, Indochinamon khinpyae, from northern Myanmar (Crustacea, Brachyura, Potamidae). ZooKeys 811: 47 - 63. https: // doi. org / 10.3897 / zookeys. 811.29187"type="journal article"year="2018">