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Beta Mahatvaraj (2) Steven Grant (1) Andrew Rao (1) Sadit Khan (1) Abhisek Mishra (1)

Description: Dorsal spines (total): 1; Dorsal soft rays (total): 6; Vertebrae: 35 - 37. Dorsal fin with 6 branched rays; dorsal and pectoral-fin spines with filamentous extensions. Anal fin with 4-5 simple rays, 7-9 branched rays. Snout strongly projecting. Nasal barbel reaching only to posterior margin of orbit; maxillary barbel reaching to end of pelvic fin or to anal-fin origin; maxillary barbel membrane with narrow attachment to cheek and broad attachment to corner of mouth; mental barbels reaching posteriorly to end of head. Vent opens into pouch or pseudovent, with broad membranous opening near pelvic fin tip. Head, body and caudal peduncle slightly more elongate than other congeners. Aquarium Care: An aquarium having a tight fitting cover glass is best, as they do have a tendency to regularly swim vigorously from the substrate to the surface of the water. It is essential that good filtration is provided; and a internal power filter that has quite a good flow of water, and an air diffuser fitted is recommended in order to go someway in providing turbulent and well oxygenated water which is a must if one wants to keep Nangra assamensis alive and healthy for any length of time. A substrate of fine rounded gravel interspersed with stones and rocks and a few clumps of short hard leafed plants would go someway in making this small sisorid feel secure. Diet: Feeding in not too problematic as it takes well to the usual frozen foods such as daphnia and bloodworms. Etymology: The genus name Nangra: tautonymous with Pimelodus nangra, presumably a local Bengali name for this fish along the Kosi River in India. The specific name assamensis: –ensis, suffix denoting place: Assam, India, type locality (also occurs in Nepal). Remarks: Like other members of the Sisorid family Nangra posses an adhesive apparatus in the form of visible pleats of skin on their ventral surfaces.

Koshi Nangra

Nangra carcharhinoides

Sisoridae

Asia: Ganges and Brahmaputra Rivers in India. Type locality: Brahmaputra R. at Neematighat, 14 km. from Jorhat, Assam, India.

9.0cm. (3½ins)

18-24°c (64-75°f.)

6.0-7.0.

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2015. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 10/2015 ).
Taylor, Adrian. pers comm.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.