17 Steromphala umbilicalis. H. 7.9mm, B. 12mm. Aug. 2013. Menai Strait, Wales.

Translucent, black-purple freckled, sub-rectangular, smooth-edged, right neck-lobe; flattened while releasing faeces. Circular operculum resting on yellow epipodium. Sensory tentacle at base of right eye peduncle (none on left).

 

Full SPECIES DESCRIPTION with links to images at: flic.kr/p/g3iVPG

 

Sets of OTHER SPECIES at: www.flickr.com/photos/56388191@N08/collections/.

 

Done