''Ompok argestes'', is a

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

of sheatfishes endemic to Sri Lanka.

Description

Male is 14.7 cm in length. It is a demersal species of fish. Four dorsal soft rays and 56–63 anal soft rays. 48–52 vertebrae present. Body and head mottled greyish brown. Predorsal profile convex uniformly. Two pairs of barbels present. Mouth terminal where lower jaw longer than the upper jaw. eyes small and without free orbital margin. There is a hazy black blotch in humeral region. scattered melanophores on Dorsal, pectoral and caudal fins. Anal fin with greyish brown mottling. Pelvic fin hyaline.

References

Siluridae Freshwater fish of Sri Lanka Endemic fauna of Sri Lanka Fish described in 2016 {{catfish-stub