Brazilian filetail catshark

The Brazilian filetail catshark is a species of shark belonging to the family Pentanchidae, the deepwater catsharks, found in southern Brazil. It lives on the continental slopes at the depths of.
This catshark has numerous characteristics which differ from all congeners in Western Atlantic Ocean, such as proportional dimensions, vertebral counts, dorsal fins subequal, and the presence of well-developed lower and upper caudal crests of denticles. Little is known about the biology of this species, aside from its oviparous reproduction system.