15 Peringia ulvae

15 Peringia ulvae

Dark head un-patterned apart from light tip on bifid snout.
Anterior edge of foot bilaminate.
Black subterminal band on cephalic tentacles.
Shell height 5.4 mm. From puddle in wet sand at mouth of Dee Estuary, Cheshire. Salinity 33p.p.t. Aug. 2011.