25 Diodora graeca

25 Diodora graeca

Mantle extends from apical slit as pale yellow exhalent siphon and rounded, densely lobular, anterior and posterior lappets (brown on adults). Surviving protoconch to posterior of siphon concealed by growths and debris.
Juvenile, length 5.5 mm. Menai Strait, Wales. March 2015.