Johnius laevis is a Misapplied Synonym of Johnius coitor and also a Valid Name or Synonym of another species as well.

Johnius coitor (Hamilton, 1822)

Coitor Croaker - Koitor poa - Native Fish - Wild (Freshwater)

Systematic Position: [2]

Kingdom	:	Animalia
Phylum	:	Chordata
Class	:	Teleostei
Order	:	Perciformes
Family	:	Sciaenidae
Genus	:	Johnius
Species	:	Johnius coitor

Common Names:

English	:	Coitor Croaker[729]
Bangla	:	Koitor poa[5] Koitor[5] Decre poa[5] Bodor gola[729] Motor[729]

Synonyms:

Bola coitor Hamilton, 1822
Jonius coitor (Hamilton, 1822)
Sciaena coitor (Hamilton, 1822)
Johnius coibor (Hamilton, 1822)
Johnius laevis (Non Sasaki and Kailola, 1991 Oct)

Maximum Length and Weight:

190 mm (TL) ^[5]

Inter-Length Relationship:

Head length : Total length : Standard length = 1 : 4.4-4.6 : 3.6-3.7 ^[5]
Body height : Total length : Standard length = 1 : 4.8-5 : 3.8-4 ^[5]
Eye Diameter : Head length = 1 : 4-5 ^[5]
Eye Diameter : Snout length = 1 : 1.2-1.5 ^[5]
Eye Diameter : Inter orbial width = 1 : 1-1.4 ^[5]

Taxonomic Formula:

D. IX-XI ; I/27-31; P₁. 16-17; P₂. 6 (I/5); A. II/7 ^{[Rahman, 2005]}
D X + I 26-29; A II 7; P i 15-16; V I 5 ^{[Talwar and Jhingran, 1991]}

Scales:

52-58 scales on lateral line. 5.5-7.5 scales between origin of dorsal fin and lateral line. [5]

Chemistry:

Data not available

Conservation Status:

Global	:	Least Concern (LC)	(Version 3.1) [647]
Bangladesh	:	Least Concern (LC)	(Version 3.1) [354]

Occurrence/Distribution:

Global	:	Bangladesh[70] Brunei[1020] India[6] Indonesia[449] Malaysia[1020] Myanmar[6] Nepal[134] Myanmar[912] Vietnam[912] Australia[449] Papua New Guinea[750]
Bangladesh	:	Halda River, Chittagong Hill Tracts[598] Andharmanik river, Patuakhali[751] Sunamganj haor region, Sunamganj[729] Passur River, Khulna[752] Kaptai reservoir (Kaptai lake), Rangamati[753] Meghna river, Narsingdi[781] Feni river, Feni[1165]

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