Adinassa barcai is a species of sea snail, a marine gastropod mollusk in the family Nassariidae, the Nassa mud snails or dog whelks. Description The length of the shell attains 29.6 mm. Distribution This marine species occurs off Angola at depths between 40 m and 50 m. References Horro J. , Schönherr C. & Rolán E. (2018). Two new Nassariidae (Gastropoda) from West Africa with the substitution of Adinopsis Odhner, 1923 by Adinassa n. nom. Conchylia. 49(3-4): 25–34. Endemic fauna of Angola barcai Gastropods described in 2018