28 Callochiton septemvalvis COMPARE  Boreochiton ruber

28 Callochiton septemvalvis COMPARE  Boreochiton ruber

Boreochiton ruber  Dorsal surface of pink to brick-red valves smooth to naked eye, apart from growth lines. Girdle has often fragmentary, pale bands roughly in line with shell-sutures. North Yorkshire, England, September 2014. Leg. P. Lightfoot.