Ondina warreni

Ondina warreni is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their allies.

Description
Compared with Ondina obliqua, the shell of Ondina warreni is smaller, its length varying between 0.8 mm and 3.2 mm. The basal striae are more distinct, and the umbilicus is more developed.

Distribution
This species occurs in the following locations:
 * European waters (ERMS scope): Atlantic European coasts
 * United Kingdom Exclusive Economic Zone
 * Portuguese Exclusive Economic Zone : Madeira
 * Spanish Exclusive Economic Zone : Canary Islands
 * Mediterranean Sea : Greece, off Apulia, Italy