Ailinzebina onobiformis is a species of minute sea snail, a marine gastropod mollusk or micromollusk in the family Rissoinidae. Description The height of the shell attains 3.5 mm. Distribution This species occurs in the Atlantic Ocean on the coast of the Cape Verde islands. References Rolán E., 2005. Malacological Fauna From The Cape Verde Archipelago. Part 1, Polyplacophora and Gastropoda Rissoinidae Gastropods described in 2000 Gastropods of Cape Verde