@Sileesh Mullasseri ( inaturalist.org )
Scientific Name : Hypopleuron caninum
Family : Ophidiidae
Order : Ophidiiformes
Class : Actinopterygii
Phylum : Chrodata
Other Name : Cusk-eels
Habitat : Shallow waters,sea bottoms
Description : Whiptail cusk is an elongated and slender bodied fish with a wide mouth.It is of brown or grey in color.Dorsal and anal fin are joined to tail.All fins are lacking spine.
Distribution in Bangladesh