Sisor rheophilus Ng, 2003

Family:  Sisoridae (Sisorid catfishes), subfamily: Sisorinae
Max. size:  15.5 cm TL (male/unsexed)
Environment:  demersal; freshwater
Distribution:  Asia: Ganges River basin in India.
Diagnosis:  Dorsal spines (total): 1-1; Dorsal soft rays (total): 6-6; Anal soft rays: 6-6; Vertebrae: 31-34. Differs from other members of the genus in possessing a narrower nuchal plate (width equal to length vs. width 1.2-1.3 times length); larger eye (13.2-16.3% HL vs. 6.9-12.2) and a longer snout (56.2-60.3% HL vs. 53.9-55.9) , except for Sisor torosus. Can be distinguished further from Sisor rabdophorus and Sisor chennuah in having a narrower head (14.5-14.8% SL vs. 15.1-17.7) (Ref. 55921).
Biology:  Inhabits swift-flowing rivers with sandy bottoms (Ref. 55921).
IUCN Red List Status: Data deficient (DD); Date assessed: 21 December 2009 Ref. (130435)
Threat to humans:  harmless


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