Cheilodipterus butis is a Senior Synonym of Butis butis.

Butis butis (Hamilton, 1822)

Duckbill sleeper - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Perciformes
Family	:	Eleotridae
Genus	:	Butis
Species	:	Butis butis

Common Names:

English	:	Duckbill sleeper[6] Blackspot sleeper[6]
Bangla	:	Data not available

Synonyms:

Cheilodipterus butis Hamilton, 1822
Eleotris butis (Hamilton, 1822)
Elestris butis (Hamilton, 1822)
Eleotris melanopterus (Non Bleeker, 1852 Sep)
Eleotris amboinensis (Non Bleeker, 1853 Nov)

Maximum Length and Weight:

8 cm (TL) ^[6]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 3.7-4 : 2.7-3 ^[5]
Body height : Total length : Standard length = 1 : 6-7 : 5-6 ^[5]
Eye Diameter : Head length = 1 : 5-6 ^[5]
Eye Diameter : Snout length = 1 : 1.7-1.8 ^[5]
Eye Diameter : Inter orbial width = 1 : 1.2-1.3 ^[5]

Taxonomic Formula:

D₁. VI; D₂. I/9; P₁. 19; P₂. 6; A. 1/8 ^{[Rahman, 2005]}
D₁ VI; D₂ I 8; A I 8; P 18-20; V I 5 ^{[Talwar and Jhingran, 1991]}
B 5; D 6/1/8; A 1/8; P 18-21; V 1/5; C 13; L.ls 28-30; L.tr 9-10 ^{[Shafi and Quddus, 1982]}

Scales:

28-30 scales on lateral line. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [634]
Bangladesh	:	Least Concern (LC)	(Version 3.1) [326]

Occurrence/Distribution:

Global	:	Comoros[861] Kenya[862] Madagascar[863] Mayotte[864] Mozambique[865] Reunion[866] South Africa[167] Andaman Island[746] Bangladesh[70] Cambodia[823] Hong Kong[868] India[6] Indonesia[449] Philippines[869] Sri Lanka[90] Thailand[870] Vietnam[871] Australia[872] Fiji[873] New Caledonia[861] Palau[874] Papua New Guinea[875]
Bangladesh	:	Meghna river estuary, Noakhali[774]

Habitat and Environment:

Habitat: Data not available

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