@Luis P. B. (iNaturalist.org)
Scientific Name : Urogymnus asperrimus
Family : Dasyatidae
Order : Myliobatiformes
Class : Elasmobranchii
Phylum : Chrodata
Habitat : Inshore,coral reefs,coastal areas,Sandy bottom
Description : Body colour of Porcupine Ray is dark brown or greenish above and whitish below.Tail blackish in colour.Disc and trunk very robust.Snout with tip blunt.
Distribution in Bangladesh