Bela trinacriaBela trinacria is an extinct species of sea snail, a marine gastropod mollusk in the family Mangeliidae.DescriptionThe height of the shell attains 8.5 mm, its diameter 3.5 mm. It is characterized by its distinctive shell, which places it within the Genus Bela, known for its fusiform shells with elevated spirals and a short siphonal canal.DistributionFossils of this species have been found in Pliocene strata in Sicily, Italy.