Diodora fragilis is a species of sea snail, a marine gastropod mollusk in the family Fissurellidae, the keyhole limpets.
Description
The size of the shell reaches 20 mm.
It consists of a conical shell, straight lateral slopes & slightly concave anterior and posterior slopes. The foramen is slightly constricted. Distribution This species occurs in the Caribbean Sea off Cuba, in the Western Central Atlantic
References
Pérez Farfante, I. and D. L. Henríquez. 1946. Nueva especie de Diodora. Revista de la Sociedad Malacológica "Carlos de la Torre" 4: 54.