Badistemon Yeo & Ng, 2007

Mitra, Santanu, Monica, Thingbaijiam & Waikhom, Mema Devi, 2020, A new species of freshwater crab of the genus Badistemon Yeo & Ng, 2007 (Decapoda: Brachyura: Potamidae: Potamiscinae) from Manipur State, India with the reassignment of Potamiscus pealianus (Wood-mason, 1871), Zootaxa 4838 (4), pp. 475-490 : 489

publication ID

https://doi.org/10.11646/zootaxa.4838.4.2

publication LSID

lsid:zoobank.org:pub:6778A39E-1625-4D6D-9DD2-5FFB2F02415C

DOI

https://doi.org/10.5281/zenodo.4405369

persistent identifier

https://treatment.plazi.org/id/C25887CC-FFFC-FF8F-FF41-4A52AEB94286

treatment provided by

Plazi

scientific name

Badistemon Yeo & Ng, 2007
status

 

Key to the species of Badistemon Yeo & Ng, 2007 View in CoL

1. Suture between male thoracic sternites s3/s4 is prominent; sixth pleonal somite ca. 2.5 times wider than median length; telson elongated, distal end narrowing; G1 subterminal segment distal part relatively broad, slightly narrower than basal width, terminal segment relatively shorter, ca. 0.32 times than combined length of subterminal segment and flexible joint ( Fig. 6 View FIGURE 6 A–C, 8 A–C; Yeo & Ng, 2007: fig. 4. a–e)........................................ B. turgidulum ( Alcock, 1909) ( Myanmar) View in CoL

- Male thoracic suture between s3/s4 is not prominent, represent as a small depression in lateral margin of sternites; sixth pleonal somite note more than ca. 2 times wider than median length; telson elongated, distal end narrowing; G1 subterminal segment distal part neck-like, abruptly narrower than basal width, terminal segment relatively long, more than ca. 0.40 times than combined length of subterminal segment and flexible joint........................................................ 2

2. Cervical groove prominent, regions distinct ( Fig. 7A View FIGURE 7 ), male telson as long as broad ( Fig. 7C View FIGURE 7 ), G1 terminal segment sub-cylindrical, tip truncated ( Fig. 8 View FIGURE 8 D–F; Wood–Mason, 1871: pl. 14, fig.7)..... B. pealianus View in CoL comb. nov. ( Assam & Mizoram, India)

- Cervical groove superficial, regions not distinct ( Fig. 2A View FIGURE 2 ), male telson broader than long ( Fig. 2 C View FIGURE 2 ), G1 terminal segment conical, tip pointed ( Fig. 4 View FIGURE 4 A–D, 5A, B)............................................ B. fulvum View in CoL sp. nov. ( Manipur, India)

Kingdom

Animalia

Phylum

Arthropoda

Class

Malacostraca

Order

Decapoda

InfraOrder

Brachyura

Family

Potamidae

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