A new species of freshwater crab, Teretamon kapota sp. nov. (Decapoda: Brachyura: Potamidae) and a new record from Arunachal Pradesh, North-Eastern India

Authors

  • Zoological Survey of India, Fire Proof Spirit Building, 27 Jawahar Lal Nehru Road, Kolkata – 700 016, West Bengal
  • Zoological Survey of India, Western Regional Centre, Akurdi, Pune – 411 044, Maharashtra

DOI:

https://doi.org/10.26515/rzsi/v121/i1/2021/153202

Keywords:

Acanthopotamon fungosum, Crustacea, New Record, Potamiscinae, Taxonomy

Abstract

A new species of the potamid freshwater crab, Teretamon kapota sp. nov., is described from the East Siang and Lower Dibang Valley districts of the Arunachal Pradesh state, north-eastern India. Teretamon kapota sp. nov. can be distinguished from the congeners mainly by the relatively small eye as compared to the orbital space, the gently concave lateral margins of the male telson, and the very high, strongly convex, semicircular dorsal flap on the terminal segment of the male first gonopod that somewhat resembles a pigeon’s head. The potamid genus, Teretamon Yeo and Ng, 2007, is now known by five species, including the present new species. An identification key is provided for the genus. Another potamine crab, Acanthopotamon fungosum (Alcock, 1909), constitutes a new record to Arunachal Pradesh also reported. Arunachal Pradesh is now known to have 17 species of freshwater crabs (13 potamid and 4 gecarcinucid species), including the present new species and the new record.

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Published

2021-03-30

How to Cite

Mitra, S., & Kumar Pati, S. (2021). A new species of freshwater crab, <i>Teretamon kapota</i> sp. nov. (Decapoda: Brachyura: Potamidae) and a new record from Arunachal Pradesh, North-Eastern India. Records of the Zoological Survey of India, 121(1), 1–10. https://doi.org/10.26515/rzsi/v121/i1/2021/153202

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References

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