Slender, soft shark with relatively small dorsal fins. Origin of first dorsal fin over the origin of the pelvic fins. Second dorsal fin opposite the anal fin, both of same size. Broad snout, rounded. Gill slits are concavely shaped.
Uniformly colored, grey-brown to grey-black, without conspicuous pattern. Ventral surface very light.
Western Atlantic: Mexico.
A little-known deepwater species of the Atlantic shelf region. Probably prefers bottom areas down to about 1000 m.
Only one specimen has been found and its size was 16 cm. (holotype: based on this specimen the species has been described).
Probably oviparous (egg laying).
Similar species of this family exist and taxonomic features have to be used to clearly distinguish among them.