04 Littorina compressa

Arrows indicate medial, shallow, secondary groove on broad, flat-topped, strap-like, spiral ribs.

9.1 mm high. Anglesey, March 2014.

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

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

 

Done