Cassiella abylensis n. sp. is the type species of a new cerithiacean genus. It is a small littoral species, at present known from a restricted range in the Strait of Gibraltar. The genus shows no direct affinity to any other Mediterranean or Atlantic taxa; definitive assignment at family level should await a forthcoming anatomical study.

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Nederlandse Malacologische Vereniging

S. Gofas. (1987). Cassiella nov. gen., a cerithiacean endemic to the Strait of Gibraltar. Basteria, 51(4/6), 109–119.