08 Littorina littorea

08 Littorina littorea

Height 19.9mm. N. Wirral, Cheshire, England. June 2011.
Distinct transverse lines on cephalic tentacles distinguish L. littorea from other Littorina species in Britain, but on very young ones with weakly developed transverse lines the single longitudinal groove is sometimes black and could be mistaken for one of the two blackish dorso-lateral lines on tentacles in the L. saxatilis complex, see Ll 0654 10 Littorina littorea .

No full account yet of this species; more images of it at flic.kr/s/aHBqjzCEPW

marinvert.senckenberg.science/image-browse/7215763361…