Chaca buchanani is a Junior Synonym of Chaca chaca.

Chaca chaca (Hamilton, 1822)

Squarehead - Checka - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Siluriformes
Family	:	Chacidae
Genus	:	Chaca
Species	:	Chaca chaca

Common Names:

English	:	Squarehead[729] Angler Catfish[729]
Bangla	:	Checka[5] Checa-veca[274] Chaga[274] Beng-sava[274] Cotcote[274] Kaua[729] Bangra[729] Beng chakkua[729] Chaka[729] Chapa[729] Bengseba[729] Kotkoti[729] Chekvega[729]

Synonyms:

Platystacus chaca Hamilton, 1822
Chaca lophioides Cuvier and Valenciennes, 1832
Chaca buchanani Günther, 1864
Chaca bankanensis (Non Bleeker, 1852 Sep)

Maximum Length and Weight:

20.5 cm (TL) ^[347] 20 cm (TL) ^[6]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 3.1-3.7 : 2.7-3.3 ^[5]
Body height : Total length : Standard length = 1 : 6.4-7.4 : 5.6-6.5 ^[5]
Eye Diameter : Head length = 1 : 4 ^[5]

Taxonomic Formula:

D II 4; A i 8-10; P I 5; V i 5 ^{[Talwar and Jhingran, 1991]}
B vi; D₁ I/3-4; D₂ 19-25; A 8-10; P I/5; V 6; C 11 ^{[Bhuiyan, 1964]}D. 5 (1/4); P₁. 6 (1/5); P₂. 6 ^{[Rahman, 2005]}

Scales:

Scaleless. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [522]
Bangladesh	:	Endangered (EN)	(Version 3.1) [218]

Occurrence/Distribution:

Global	:	Bangladesh[70] India[6] Indonesia[37] Nepal[134]
Bangladesh	:	Padma river, Rajshahi[274] Chalan beel, Natore[490] Sunamganj haor region, Sunamganj[729] Passur River, Khulna[752] Mahananda River, Chapainawabganj[775] Meghna river, Narsingdi[781] Someshwari river, Netrokona[806] Bhairab river, Jashore[807] Tanguar Haor, Sunamganj[1025] Punarbhaba, Dinajpur[1161] Dekhar haor, Sunamganj[1164] Belua river, Pirojpur[1207]

Habitat and Environment:

Habitat:
Canal, Beel, Haor, Baor, Pond ^[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