Chela cachius is a valid scientific name.

Chela cachius (Hamilton, 1822)

Silver hatchet chela - Chep Chela - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Cypriniformes
Family	:	Cyprinidae
Genus	:	Chela
Species	:	Chela cachius

Common Names:

English	:	Silver hatchet chela[6]
Bangla	:	Chep Chela[5]

Synonyms:

Cyprinus cachius Hamilton, 1822
Leuciscus cachius (Hamilton, 1822)
Perilampus cachius (Hamilton, 1822)
Cyprinus atpar Hamilton, 1822
Cachius atpar (Hamilton, 1822)
Chela atpar (Hamilton, 1822)
Laubuca atpar (Hamilton, 1822)
Leuciscus atpar (Hamilton, 1822)
Perilampus atpar (Hamilton, 1822)
Perilampus psilopteromus McClelland, 1839
Leuciscus anastoma Swainson, 1839
Chela anastoma (Swainson, 1839)
Perilampus macropodus Jerdon, 1849
Paradanio elegans Day, 1867 Oct

Maximum Length and Weight:

>90 mm (TL) ^[5] 6 cm (TL) ^[6]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 5.5-5.8 : 4.4-4.6 ^[5]
Body height : Total length : Standard length = 1 : 4.1-4.3 : 3.3-3.4 ^[5]
Eye Diameter : Head length = 1 : 3 ^[5]
Eye Diameter : Snout length = 1 : .7 ^[5]
Eye Diameter : Inter orbial width = 1 : 1 ^[5]
Inter orbial width : Eye Diameter = 1 : 1 ^[5]

Taxonomic Formula:

D. 9(2/7); P₁. 10; P₂. 7; A. 23-24(2/21-22) ^{[Rahman, 2005]}
D ii 7-8; A ii-iii 19-23; P i 8-11; V i 5-6 ^{[Talwar and Jhingran, 1991]}
B III; D 9(2/7); A 22-24(2/21-22); P 10; V 7; L.ls 55-65 ^{[Shafi and Quddus, 1982]}

Scales:

55-66 scales on lateral line. 4 scales between origin of pelvic fin and lateral line. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [533]
Bangladesh	:	Vulnerable (VU)	(Version 3.1) [230]

Occurrence/Distribution:

Global	:	Bangladesh[70] India[37] Myanmar[6] Pakistan[741]
Bangladesh	:	Padma river, Rajshahi[274] Chalan beel, Natore[490] Passur River, Khulna[752] Mahananda River, Chapainawabganj[775] Talma River, Panchagarh[800] Someshwari river, Netrokona[806] Nabaganga river, Narail[809] Banar River, Mymensingh[1023] Punarbhaba, Dinajpur[1161] Feni river, Feni[1165] Muhuri river, Feni[1165] Titas river, Brahmanbaria[1169] Betna river, Satkhira[1201] Sandha river, Pirojpur[1206]

Habitat and Environment:

Habitat:
Canal, Beel, Baor, 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: (Green = Peak, Yellow = Off, Lemon = Moderate)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

[792]

Harvesting Gears:
Seine net, Push net, Fixed net ^[792]
Market price:
200-300 BDT/kg (Size: 5-6 cm, Weight: 8-10 g, Place: Noakhali, Bangladesh) ^[792]