19 Boreochiton ruber

19 Boreochiton ruber

Unusually large specimen, length 20 mm. Anglesey, Wales. April 2020. © A. Rowat.
Large B. ruber like this often resemble Tonicella marmorea, but B. ruber’s girdle has crowded ‘mealy’ granules (right), with pale bands thinner than the dark ones.

KEY ID FEATURES and similar species at: 01 Boreochiton ruber. Length 12mm. North Yorkshire. September 2014. (leg. Paula Lightfoot).