identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
03A387BCFFB5FF97FDE7C467FCB47034.text	03A387BCFFB5FF97FDE7C467FCB47034.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acanthopotamon Kemp 1918	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Acanthopotamon , freshwater crab, new record,  Potamidae ,  Potaminae . </p>
            <p> Odisha is the largest state among the states of eastern India. The diversity of freshwater crabs in Odisha, however, is relatively lower (four species) compared to other eastern Indian states viz., Bihar (six species) and West Bengal (16 species) (Pati and Thackeray, 2018). The four species of freshwater crabs known from Odisha to date all belong to the family  Gecarcinucidae Rathbun, 1904 :  Barytelphusa cunicularis (Westwood in Sykes, 1836) (see Chopra and Tiwari, 1947; Ramakrishna, 1951);  Oziotelphusa ganjamensis Pati and Sharma, 2012 (see Pati and Sharma, 2012);  Sartoriana spinigera (Wood-Mason, 1871) (see Henderson, 1893; Rathbun, 1905; Alcock, 1910); and  Spiralothelphusa hydrodroma (Herbst, 1794) (see Chopra and Tiwari, 1947; Deb, 1998a). No species of the family  Potamidae Ortmann, 1896 , is so far known from Odisha. A potamid crab,  Acanthopotamon martensi (Wood-Mason, 1875) of the subfamily  Potaminae Ortmann, 1896 , is reported herein for the first time from Odisha. </p>
            <p> The material examined is deposited in the Zoological Survey of India,Western Regional Centre, Pune, India (ZSI-WRC), while the comparative material was from the  Crustacea Section of the Zoological Survey of India, Kolkata, India (ZSIK). The specimens were identified using the key of Pati et al. (2019). The terminologies and measurement methods of the carapace are after Ng (1988). The following abbreviations are used: CW, width of carapace; CL, length of carapace; coll., collector; G1, male first gonopod; G2, male second gonopod. </p>
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	https://treatment.plazi.org/id/03A387BCFFB5FF97FDE7C467FCB47034	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mohapatra, Sameer Kumar Pati Swarup Ranjan Mohanty Anil	Mohapatra, Sameer Kumar Pati Swarup Ranjan Mohanty Anil (2023): First record of a potamid crab (Decapoda: Brachyura) from Odisha State, India. Nauplius (e 2023020) 31: 1-7, DOI: 10.1590/2358-2936e2023020
03A387BCFFB4FF95FF0CC5D9FAEB7796.text	03A387BCFFB4FF95FF0CC5D9FAEB7796.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acanthopotamon martensi (Wood-Mason 1875)	<html xmlns:mods="http://www.loc.gov/mods/v3">
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            <p> Acanthopotamon martensi (Wood-Mason, 1875)</p>
            <p>(Fig. 1)</p>
            <p> Paratelphusa martensi Wood-Mason, 1875: 230 . </p>
            <p> Paratelphusa martensi — Wood-Mason, 1876: 122 (list). — Henderson, 1893: 386. </p>
            <p> Parathelphusa martensi — de Man, 1898: 438 (list). </p>
            <p> Potamon (Parathelphusa) martensi — Rathbun,1905: 258. </p>
            <p> Potamon (Acanthotelphusa) martensi — Alcock, 1910: 68. — Ramakrishna, 1951: 92. </p>
            <p> Potamon (Spinopotamon) martensi — Bott, 1966: 476. </p>
            <p> Acanthopotamon martensi — Bott, 1970: 145. — Deb, 1998b: 382. — Yeo and Ng, 2007: 275 (list). — Ng et al., 2008: 159 (list). — Rahman et al., 2008: 13. — Ng et al., 2011: 60 (list). — Nesemann et al., 2013: 218 (list). — Klaus et al., 2017: 567. — Pati and Thackeray, 2018: 9 (list). — Pati et al., 2019: 451 (list). </p>
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                 Material examined. 2 males (29.97 × 24.13 mm, 26.34 × 19.43 mm),  2 females (23.94 × 19.45 mm, 23.24 × 18.99 mm), ZSI-WRC  C.1920, India, Odisha State, Jagatsinghpur District,  
                <a title="Search Plazi for locations around (long 86.155/lat 20.332)" href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=86.155&amp;materialsCitation.latitude=20.332">Banikunda</a>
                 , 20.332 86.155, altitude 12 m, 23 July 2017, S. R. Mohanty coll.  ;  5 males (22.58 × 17.90 mm, 22.35 × 18.43 mm, 22.34 × 18.18 mm, 21.50 × 17.64 mm, 20.15 × 16.65 mm), ZSI-WRC C.1921, same data as preceding collection . 
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                 Comparative material.   Syntype male (29.2 × 22.0 mm), ZSIK 4069 /4, India, Bihar State, Purnia District,  
                <a title="Search Plazi for locations around (long 87.47/lat 25.78)" href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=87.47&amp;materialsCitation.latitude=25.78">Purnia</a>
                 (= Purneah) [~ 25.780 87.470], altitude ~ 42 m, no date, museum collector  . 
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            <p>Diagnosis. Carapace subhexagonal, relatively broad (CW /CL = 1.3–1.4); anterolateral margins each with 3 prominent epibranchial teeth; first epibranchial tooth distinctly broader than second- and third epibranchial teeth, directed anteriorly, basally broad, tip acute, separated from external orbital tooth by distinct cleft; second epibranchial tooth directed laterally, basally narrow, tip acute; third epibranchial tooth directed laterally, basally broad, tip acute; posterolateral margins almost straight, converging; postorbital cristae relatively long, extending beyond level of mid supraorbital margin; external orbital tooth broadly triangular (Fig.1A). Major cheliped carpus with well-developed, acute inner distal tooth (Fig. 1A). G1 with flexible zone strongly reduced; terminal segment relatively stout, subcylindrical, relatively long, approximately 0.4times length of subterminal segment; subterminal segment with inner (mesial) margin straight just below flexible zone, outer (lateral) margin sharply raised in proximal half to distinct shelf or hump (Fig. 1B–D). G2 longer than G1, approximately 1.1–1.2 times length of G1; distal segment relatively short, approximately 0.5 times length of basal segment (Fig. 1E).</p>
            <p> Ecological notes. Specimens of  A. martensi were collected from shallow burrows (&lt;0.3 m deep) along the margins of a turbid water channel adjacent to rice and sugarcane fields (Fig. 2). The margins of the water channel have a profuse growth of Kans Grass (  Saccharum spontaneum L. of the family  Poaceae ). At the collection site, these crabs are very common and active during the rainy season (July-September) only. </p>
            <p> Geographical distribution.  Acanthopotamon martensi has a wider distribution in the northern part of the Indian subcontinent, with confirmed records from Bangladesh, India (Bihar, Haryana, Punjab, Uttar Pradesh, Uttarakhand, and West Bengal States), Nepal, and Pakistan (see Pati et al., 2019) (Fig. 3). Until now, the distribution of  A. martensi was limited to the ‘Ganges Delta and Plain’ and the ‘Lower and Middle Indus’ freshwater ecoregions (Fig. 3) (Abell et al., 2008; Pati et al., 2019). The present record of  A. martensi from Odisha confirms its occurrence in the ‘Northern Deccan Plateau’ freshwater ecoregion (Fig. 3) (Abell et al., 2008). </p>
            <p> Remarks. According to Shih et al. (2009), potamid crabs are not known from the main Indian subcontinent south of the Ganges River. They also noted that strong competition from the dominating gecarcinucid crabs in the Indian Peninsula may have restricted the southward extension of potamids. The present record of  A. martensi from Odisha, however, represents the southernmost record of the family  Potamidae in the Indian subcontinent. In fact,  A. martensi is one of two potamid species that is known from the south of the Ganges, the other species being  Acanthopotamon panningi (Bott, 1966) (Fig. 3; see Bott, 1966; Pati et al., 2019: fig. 1). </p>
            <p> Counting the present record of  A. martensi , five species of freshwater crabs are now known from Odisha State. Odisha possesses four major physiographic regions: 1) Eastern Coastal Plains, mainly formed by the deltas of six major rivers; 2) Northern Plateau, an extension of Chota Nagpur Plateau; 3) the Central Tract, consisting of plateaus, hills, uplands and valleys; and 4)Eastern Ghats(Tikader and Chhotani, 1987). All these regions provide an array of habitats for freshwater crabs.Most of these regions, however, have been underexplored for freshwater crabs. The present new record of  A. martensi and the description of a new species by Pati and Sharma (2012) indicate that there may be more freshwater crab taxa yet to be recognized from the state. More systematic surveys on freshwater crabs, therefore, need to be conducted in Odisha. </p>
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	https://treatment.plazi.org/id/03A387BCFFB4FF95FF0CC5D9FAEB7796	Public Domain	No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.		Plazi	Mohapatra, Sameer Kumar Pati Swarup Ranjan Mohanty Anil	Mohapatra, Sameer Kumar Pati Swarup Ranjan Mohanty Anil (2023): First record of a potamid crab (Decapoda: Brachyura) from Odisha State, India. Nauplius (e 2023020) 31: 1-7, DOI: 10.1590/2358-2936e2023020
