Opsarius barna is a valid scientific name.

Opsarius barna (Hamilton, 1822)

- Koksa - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Cypriniformes
Family	:	Cyprinidae
Genus	:	Opsarius
Species	:	Opsarius barna

Common Names:

English	:	Data not available
Bangla	:	Koksa[5] Bani Koksa[5]

Synonyms:

Barilius barna (Hamilton, 1822)
Cyprinus barna Hamilton, 1822
Leuciscus barna (Hamilton, 1822)
Barilius barana (Hamilton, 1822)
Opsarius acanthopterus McClelland, 1839
Leuciscus acanthopterus (McClelland, 1839)
Opsarius fasciatus McClelland, 1839
Opsarius latipinnatus McClelland, 1839
Barilius papillatus Day, 1869
Barilius jayarami Barman, 1985

Maximum Length and Weight:

Data not available

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 4.6-5 : 3.5-4 ^[5]
Body height : Total length : Standard length = 1 : 4.3-5 : 3.4-4 ^[5]
Eye Diameter : Head length = 1 : 2.5-5.2 ^[5]
Eye Diameter : Snout length = 1 : .7-.9 ^[5]
Eye Diameter : Inter orbial width = 1 : .9-1.2 ^[5]

Taxonomic Formula:

D 9(2/7); A 12-14(2-3/10-11); P 14-15; V 9; C 19; L.ls 39-42; L.tr 8-9/6 ^{[Shafi and Quddus, 1982]}
D ii 7; A iii 10-11; P i 14; V i 8 ^{[Talwar and Jhingran, 1991]}D. 9 (2/7); P₁. 14-15; P₂. 9; A. 12-14 (2-3/10-11) ^{[Rahman, 2005]}

Scales:

Data not available

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [508]
Bangladesh	:	Endangered (EN)	(Version 3.1) [190]

Occurrence/Distribution:

Global	:	Bangladesh[70] Bhutan[847] India[37] Laos[851] Myanmar[742] Nepal[740]
Bangladesh	:	Dhepa river, Dinajpur[779] Atrai River, Dinajpur[815]

Habitat and Environment:

Habitat:
River ^[347]

Environment:

Parameters	Units	Minimum	Maximum	Optimum	Ref.
Temperature	-	-	-	-	-
pH	-	-	-	-	-
DO	-	-	-	-	-
Free CO2	-	-	-	-	-

Breeding Maturity:

Data not available

Breeding Season: (red background)

Data not available

Fecundity:

Data not available

Food and Feeding Habit:

Diet composition (%): Data not available

Importance:

Production and Marketing:
Production/Harvesting Season: Data not available
Harvesting Gears: Data not available
Market price: Data not available