Bela nebula
Bela nebula, also known as the nebular needle conch is a species of sea snail, a marine gastropod mollusk in the family Mangeliidae. It is the type species of the genus "Bela". Taxonomy. Probably "Bela nebula" forms a complex, which "Bela laevigata" also belongs to (Ankel 1936, Van Aartsen et al. 1984) Description. The shell size varies between 5 mm and 14 mm, characteristic of the "Bela" genus, with smooth protoconch whorls, except for the last, which features low, curved axial riblets overrun by a few rows of obsolete spiral elements, which form swolen tubercles at the intersection . The aperture of the shell is lanceolate and elongated, with a thin outer lip. Distribution. This species occurs in European waters off Belgium and the British Isles, in the Northeast Atlantic Ocean off Norway, in the Atlantic Ocean off Spain, Portugal, the Azores and Madeira and in the Mediterranean Sea