Barbus apogon is a Misapplied Synonym of Oreichthys cosuatis and also a Valid Name or Synonym of another species as well.

Oreichthys cosuatis (Hamilton, 1822)

Cosuatis Barb - Kosuati punti - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Cypriniformes
Family	:	Cyprinidae
Genus	:	Oreichthys
Species	:	Oreichthys cosuatis

Common Names:

English	:	Cosuatis Barb[729]
Bangla	:	Kosuati punti[729] Kosua punti[729] Titkinda[729] Tit punti[729]

Synonyms:

Puntius cosuatis (Hamilton, 1822)
Cyprinus cosuatis Hamilton, 1822
Barbus cosuatis (Hamilton, 1822)
Leuciscus cosuatis (Hamilton, 1822)
Systomus malacopterus McClelland, 1839
Rohtee pangut Sykes, 1839 May
Barbus apogon (Non Valenciennes, 1842)
Puntius coorgensis (Non Jayaram, 1982)

Maximum Length and Weight:

60 mm (TL) ^[5]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 4.2-4.4 : 3.2-3.5 ^[5]
Body height : Total length : Standard length = 1 : 3.3-4 : 2.5-3 ^[5]
Eye Diameter : Head length = 1 : 3-3.4 ^[5]
Eye Diameter : Snout length = 1 : .7-.9 ^[5]
Eye Diameter : Inter orbial width = 1 : 1-1.3 ^[5]

Taxonomic Formula:

D. 11(3/8); P₁. 13-14; P₂. 9; A. 7(2/5) ^{[Rahman, 2005]}
D iii 8; A ii 5; P i 13; V i 8 ^{[Talwar and Jhingran, 1991]}
D iii 8; A ii 5; P i 13; V i 8 ^{[Talwar and Jhingran, 1991]}

Scales:

22-23 scales on lateral line. 5-6 scales on transverse series. 7-8 scales before dorsal fin base. 2 scales between origin of pelvic fin and lateral line. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [515]
Bangladesh	:	Endangered (EN)	(Version 3.1) [211]

Occurrence/Distribution:

Global	:	Bangladesh[70] India[37] Myanmar[37] Thailand[670]
Bangladesh	:	Padma river, Rajshahi[274] Sunamganj haor region, Sunamganj[729] Someshwari river, Netrokona[806] Dekhar haor, Sunamganj[1164]

Habitat and Environment:

Habitat: Data not available

Environment: