Opsarius shacra (Hamilton, 1822)
photo by Jha, B.R.

Family:  Danionidae (Danios), subfamily: Chedrinae
Max. size:  14 cm TL (male/unsexed)
Environment:  benthopelagic; freshwater; pH range: 8
Distribution:  Asia: India, Bangladesh and Nepal.
Diagnosis:  Dorsal spines (total): 2-2; Dorsal soft rays (total): 7-7; Anal spines: 2-2; Anal soft rays: 8-8. Jaws of about equal length in front; maxilla reaching below anterior margin of orbit; 2/3rd suborbital half as wide as uncovered part of cheek below; dorsal midway between anterior margin of orbit and caudal base; 4-6 outer pectoral rays strong; about seven rows of scales between lateral line and base of pelvic fin; predorsal scales 25 scales; about 13 bluish spots along side of back; about 12 incomplete bars go from back downwards towards lateral line; and a dark bar along upper 3rd of dorsal fin (Ref. 93114).
Biology:  Found in rivers and streams (Ref. 4832). Collected in large river with diverse substrate consisting of sand, mud, gravel, pebble, cobble, and boulders (Ref. 85713).
IUCN Red List Status: Least Concern (LC); Date assessed: 22 January 2010 Ref. (130435)
Threat to humans:  harmless


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