1: short snout with pale tip. 2: small rudimentary cephalic lappet. 3; small, exposed black eye is surrounded by blue-grey of rest of eye within translucent peduncle. 4: small sensorytentacle at base of right eye peduncle (none on left). 5: cephalic tentacle with orange-brown median line
Jeffreys (1865) says "foot — slightly cloven in front ". Appears so when foot folded along medial furrow, as here, but no cleft when foot unfolded – see image 13.
Shell height 23 mm. Portland Harbour. April 2012.