35 Littorina compressa album. Comparison image of Littorina saxatilis s.s. Height 6.5mm. Dee Estuary, Cheshire, England.

35 Littorina compressa album. Comparison image of Littorina saxatilis s.s. Height 6.5mm. Dee Estuary, Cheshire, England.

Black or dark brown spiral lines not confined to groove. Columellar lip not white; it and other lips with much dark brown. Though small and thin lipped, this specimen was mature with embryos in the broodpouch, see image 36 Littorina compressa album. Comparison image of Littorina saxatilis s.s. Shell height 6.5mm. Dee Estuary, Cheshire, England. .