Ompok bimaculatus ';
General information
Ompok bimaculatus (Bloch, 1794)
 
 
Common nameButter catfish
Synonyms
Silurus bimaculatus Bloch, 1794
Callichrous bimaculatus (Bloch, 1794)
Pseudosilurus bimaculatus (Bloch, 1794)
Wallago bimaculatus (Bloch, 1794)
Ompak bimaculatus (Bloch, 1794)
Silurus chechra Hamilton, 1822
Callichrous chechra (Hamilton, 1822)
Silurus duda Hamilton, 1822
Silurus affinis Swainson, 1839
Callichrus affinis Swainson, 1839
IUCN Red List status (2014)
Near Threatened (NT)
Habitat
Freshwater
Systematics
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Neopterygii; Teleostei; Ostariophysi; Siluriformes; Siluridae.
Geographical distribution
India; Bangladesh; Sri Lanka; Pakistan; Myanmar; Nepal; Afghanistan
Occurrence Native: India, Bangladesh, Sri Lanka, Pakistan, Myanmar, Nepal, Afghanistan
Importance
Food/ornamental
Remarks
Nil
Karyological information
Geographical area of study River Jumna and its adioining tributaries near Delhi, India
Source of chromosomes
Testicular material
Number of specimens with sex
Not reported
Diploid chromosome number
40
Karyotype formula
4m+36a
Fundamental arm number
Not reported
Chromosome length
Not reported
Sex chromosome
Not reported
Chromosome staining/banding/FISH
Not reported
Reference(s)
Nayyar RP(1966). Karyotype studies in thirteen species of fishes. Genetica, 37:78-92.