BorsonellopsisBorsonellopsis is a genus of sea snails, marine gastropod mollusks in the family Borsoniidae.DescriptionIn contrast with Borsonella, the shells in this genus are larger in size, have a weakly plicate columella and have a vestigial operculum with an apical nucleus.SpeciesMcLean included the following species within the genus Borsonellopsis but the database WoRMS still considers them as belonging to Borsonella.Borsonella callicesta Borsonella diegensis ''Borsonella erosina''