identifier	taxonID	type	CVterm	format	language	title	description	additionalInformationURL	UsageTerms	rights	Owner	contributor	creator	bibliographicCitation
B66E39EEA8CC56BC93FE115CCF0E32CD.text	B66E39EEA8CC56BC93FE115CCF0E32CD.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acanthopotamon fungosum (Alcock 1909)	<div><p>Acanthopotamon fungosum (Alcock, 1909)</p><p>Figs 2, 4a, b</p><p>Potamon (Paratelphusa) fungosum Alcock, 1909: 250.</p><p>Potamon (Acanthopotamon) fungosum - Alcock 1910: 65, fig. 12.</p><p>Lobothelphusa fungosa - Bott 1970: 148, pl. 38 fig. 25, pl. 46 fig. 23.</p><p>Paratelphusa fungosum - Brandis and Sharma 2005: 14.</p><p>Acanthopotamon fungosum - Yeo and Ng 2007: 274; Ng et al. 2008: 159.</p><p>Material examined.</p><p>1 male, 28.84 × 24.28 mm (Table 1), Chittagong <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=91.78001&amp;materialsCitation.latitude=22.46861" title="Search Plazi for locations around (long 91.78001/lat 22.46861)">University Campus</a>, Chattogram, Bangladesh, 22°28'07"N, 91°46'48"E; 15 August 2021, collected by Shibly Sadique Shashi.</p><p>Description of the male.</p><p>Carapace subhexagonal, convex, covered by short spongy fur, dorsal surface rough, region distinct; ca 1.19 × broader than long. H-shaped groove distinct. Epigastric cristae broad, blunt, well advance of postorbital cristae; post orbital cristae short, not confluent with first epibranchial tooth (Fig. 2a); external orbital tooth blunt, broadly triangular; anterolateral margin convex, with 4 epibranchial teeth, first epibranchial tooth distinctly triangular, others sharp. Eyes moderate in size, outer margin of eye with U- to V-shaped incision (Fig. 2c). Third maxilliped elongated, rectangular; with well-developed flagellum present distally on exopod; exopod not distally tapering and longer than merus width. Epistome lateral margins slightly sinuous, medial lobe triangular (Fig. 2c).</p><p>Chelipeds unequal in size, right larger; carpus and merus of cheliped with distinct subdistal and subterminal spine, fingers longer than palm, distinct gap with dactyl and pollex closed, both movable and immovable fingers with 3 or 4 large, rounded teeth (Fig. 2d); fingers of minor chela slightly gaping when closed (Fig. 2e). Ambulatory legs bearing short setae; second pair of ambulatory legs longest, fourth pair shortest; dactylus slender, styliform, with spinules (Fig. 2a).</p><p>Thoracic sternum smooth, pitted, suture between s1/s2 completely fused to form triangular structure; suture between s3/s4 indistinct, suture between s4/s5, s5/s6, s6/s7, s7/s8 distinct (Fig. 2b).</p><p>Pleon broadly triangular; all segments rectangular. Telson tongue-shaped, length and width almost equal (Fig. 2b).</p><p>G1 curved outwardly, gradually tapering towards tip; terminal segment subcylindrical, slender, covered by short setae; nearly 3 × shorter than subterminal segment (Fig. 4a, b). G2 elongated, shorter than G1.</p><p>Remarks.</p><p>Acanthopotamon fungosum was originally described as Potamon (Paratelphusa) fungosum Alcock, 1909 from Cachar, India (Bott 1970). Previously, A. fungosum was only known from the states of Arunachal Pradesh, Assam, Mizoram and Manipur, in India (Pati et al. 2019; Mitra and Pati 2021; Rath et al. 2022). This species is recorded here for the first time from Bangladesh. Acanthopotamon martensi is also distributed in Bangladesh, i.e., in Manikganj district and estuaries of the Chakaria Sundarban area (Shafi and Quddus 1982; Rahman et al. 2008).</p><p>The IUCN conservation status of A. fungosum was assessed as Data Deficient (DD) (Cumberlidge 2008a). The species is distributed over a small geographical area, i.e., eastern Bangladesh and southern Assam, India. Due to restricted distributional range and increasing threats to freshwater habitats of this region from various human activities, A. fungosum is likely more threatened than M. edentula . Further field surveys are needed to determine population size and threats.</p><p>Until now, four species have been described for the genus Acanthopotamon (Pati et al. 2019). Acanthopotamon fungosum can be easily differentiated by having four epibranchial teeth, compared to two epibranchial teeth in A. panningi (Bott 1970: fig. 19; Pati et al. 2019), three in A. horai (Pati et al. 2019), and three in A. martensi (Bott 1970: fig. 20; Rahman et al. 2008; Pati et al. 2019).</p></div>	https://treatment.plazi.org/id/B66E39EEA8CC56BC93FE115CCF0E32CD	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.		Pensoft via Plazi	Shashi, Shibly Sadique;Pan, Da;Emu, Nusrath Jahan;Roy, Mishal;Sadek, Md. Abu;Sharifuzzaman, S M;Sun, Hongying	Shashi, Shibly Sadique, Pan, Da, Emu, Nusrath Jahan, Roy, Mishal, Sadek, Md. Abu, Sharifuzzaman, S M, Sun, Hongying (2023): Two new records and an updated checklist of freshwater crabs (Arthropoda, Malacostraca, Decapoda, Potamidae and Gecarcinucidae) from Bangladesh. ZooKeys 1167: 211-222, DOI: http://dx.doi.org/10.3897/zookeys.1167.102766, URL: http://dx.doi.org/10.3897/zookeys.1167.102766
C88662EB93A35E2ABA94A4B8808BB3CC.text	C88662EB93A35E2ABA94A4B8808BB3CC.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Acanthopotamon Kemp 1918	<div><p>Genus Acanthopotamon Kemp, 1918</p><p>Type species.</p><p>Paratelphusa martensi Wood-Mason, 1875, by original designation.</p></div>	https://treatment.plazi.org/id/C88662EB93A35E2ABA94A4B8808BB3CC	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.		Pensoft via Plazi	Shashi, Shibly Sadique;Pan, Da;Emu, Nusrath Jahan;Roy, Mishal;Sadek, Md. Abu;Sharifuzzaman, S M;Sun, Hongying	Shashi, Shibly Sadique, Pan, Da, Emu, Nusrath Jahan, Roy, Mishal, Sadek, Md. Abu, Sharifuzzaman, S M, Sun, Hongying (2023): Two new records and an updated checklist of freshwater crabs (Arthropoda, Malacostraca, Decapoda, Potamidae and Gecarcinucidae) from Bangladesh. ZooKeys 1167: 211-222, DOI: http://dx.doi.org/10.3897/zookeys.1167.102766, URL: http://dx.doi.org/10.3897/zookeys.1167.102766
6E02AB295ECA50A0BE9E4FAB4A5C6EAB.text	6E02AB295ECA50A0BE9E4FAB4A5C6EAB.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Maydelliathelphusa Bott 1969	<div><p>Genus Maydelliathelphusa Bott, 1969</p><p>Type species.</p><p>Telphusa masoniana Henderson, 1893, by original designation.</p></div>	https://treatment.plazi.org/id/6E02AB295ECA50A0BE9E4FAB4A5C6EAB	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.		Pensoft via Plazi	Shashi, Shibly Sadique;Pan, Da;Emu, Nusrath Jahan;Roy, Mishal;Sadek, Md. Abu;Sharifuzzaman, S M;Sun, Hongying	Shashi, Shibly Sadique, Pan, Da, Emu, Nusrath Jahan, Roy, Mishal, Sadek, Md. Abu, Sharifuzzaman, S M, Sun, Hongying (2023): Two new records and an updated checklist of freshwater crabs (Arthropoda, Malacostraca, Decapoda, Potamidae and Gecarcinucidae) from Bangladesh. ZooKeys 1167: 211-222, DOI: http://dx.doi.org/10.3897/zookeys.1167.102766, URL: http://dx.doi.org/10.3897/zookeys.1167.102766
D78E2F367B28544FA5F9AE3FBC8BC29B.text	D78E2F367B28544FA5F9AE3FBC8BC29B.taxon	http://purl.org/dc/dcmitype/Text	http://rs.tdwg.org/ontology/voc/SPMInfoItems#GeneralDescription	text/html	en	Maydelliathelphusa edentula Alcock 1909	<div><p>Maydelliathelphusa edentula Alcock, 1909</p><p>Figs 3, 4c, d</p><p>Potamon lugubre edentulum Alcock, 1909: 247.</p><p>Paratelphusa (Barytelphusa) edentula - Alcock 1909: 376; Alcock 1910: 84, fig. 19.</p><p>Barytelphusa (Maydelliathelphusa) edentula - Bott 1970: 34.</p><p>Maydelliathelphusa edentula - Ng et al. 2008: 68.</p><p>Material examined.</p><p>1 male, 65.89 × 49.16 mm (Table 1), <a href="https://tb.plazi.org/GgServer/search?materialsCitation.longitude=90.64833&amp;materialsCitation.latitude=25.0125" title="Search Plazi for locations around (long 90.64833/lat 25.0125)">Kangsa River</a>, Netrokona, Mymensingh, Bangladesh, 25°00'45"N, 90°38'54"E, 10 August 2021, collected by Shibly Sadique Shashi and Nusrath Jahan Emu.</p><p>Description of the male.</p><p>Carapace slightly depressed, ca 1.34 × broader than long; epigastric cristae distinct, epigastric and postorbital cristae on either side united (Fig. 3a); postorbital cristae distinct, sharp, subparallel to frontal margin; frontal region deflexed, relatively wide; external orbital tooth prominent, epibranchial tooth present, prominent; frontal margin bilobed, frontal median triangle not complete; cervical groove well developed; mesogastric furrow very distinct, deep, slightly bifurcated posteriorly. Anterolateral and posterolateral regions rugose. Eyes smaller than orbital floor; eyestalk short. Third maxilliped with ischium subrectangular, longer than broad, with distinct narrow medial groove; merus pentagonal, broader than long; exopod slender, longer than ischium, reaching base of merus, with long flagellum (Fig. 3c). Epistome lateral margins slightly sinuous, medial lobe triangular (Fig. 3c).</p><p>Chelipeds surface smooth, unequal, right cheliped larger; carpus with distinct spine on inner angle; fingers longer than palm, movable finger strongly curved downward, immovable finger smoothly curved upward, wide gap between dactyl and pollex when closed, movable finger comparatively larger than immovable finger, inner margin of fingers lined with numerous round and blunt teeth (Fig. 3d); ambulatory legs stout; second pair of ambulatories longest while the fourth pair shortest (Fig. 3b); dactylus slender, longer than propodus, with 4 rows of spines on the margin (Fig. 3b).</p><p>Male thoracic sternum smooth, pitted. Sternites s1/s2 completely fused forming triangular structure; suture between s3/s4 shallow; suture between s4/s5, s5/s6, s6/s7, s7/s8 distinct (Fig. 3b).</p><p>Male pleon T-shaped, somites 5 and 6 constricted medially. Telson tongue-shaped, length and width almost equal (Fig. 3b).</p><p>G1 stout, straight; terminal segment tapering gradually, almost 2 × shorter than subterminal segment (Fig. 4c, d). G2 elongated, shorter than G1.</p><p>Remarks.</p><p>Maydelliathelphusa edentula was originally described as Potamon lugubre var. edentulum Alcock 1909 from Assam, India and subsequently transferred to Barytelphusa (Maydelliathelphusa) Bott, 1969 (Bott 1970). The present record is the first report of the genus Maydelliathelphusa from Bangladesh. Previously, M. edentula was documented in India (Assam, Nagaland, Mizoram) and Bhutan (Samchi) (Cumberlidge 2008b; Valarmathi 2017; Ray et al. 2018; Das 2021). Suitable habitats include freshwater rivers and streams (Cumberlidge 2008b). Therefore, it is not surprising that M. edentula occurs in eastern Bangladesh, near its known distribution range.</p><p>The IUCN conservation status of M. edentula is Near Threatened (NT) because of its limited distribution range and vulnerable habitat (Cumberlidge 2008b). Although the current study has expanded its known geographic distribution, the conservation status of this species is still not optimistic. In western Bangladesh, some local people, especially fishermen, eat this crab on a limited scale. In addition, various types of human activities, like pollution, urbanization and sand mining are impacting freshwater habitats in that area and, consequently, are threats to the population of M. edentula .</p><p>Until now, five species belonging to the genus Maydelliathelphusa have been recorded from India, Bhutan, and Nepal (Cumberlidge 2008c; Valarmathi 2017; Das 2021). The morphology of the carapace of M. edentula is superficially similar to that of other four species. However, M. edentula can be easily distinguished externally by its large, distinctively asymmetric chelipeds and its united epigastric and postorbital cristae (Bott 1970; Das 2021).</p></div>	https://treatment.plazi.org/id/D78E2F367B28544FA5F9AE3FBC8BC29B	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.		Pensoft via Plazi	Shashi, Shibly Sadique;Pan, Da;Emu, Nusrath Jahan;Roy, Mishal;Sadek, Md. Abu;Sharifuzzaman, S M;Sun, Hongying	Shashi, Shibly Sadique, Pan, Da, Emu, Nusrath Jahan, Roy, Mishal, Sadek, Md. Abu, Sharifuzzaman, S M, Sun, Hongying (2023): Two new records and an updated checklist of freshwater crabs (Arthropoda, Malacostraca, Decapoda, Potamidae and Gecarcinucidae) from Bangladesh. ZooKeys 1167: 211-222, DOI: http://dx.doi.org/10.3897/zookeys.1167.102766, URL: http://dx.doi.org/10.3897/zookeys.1167.102766
