1. Potamopyrgus antipodarum. Sole of foot. White pigment spots on tentacle restricted to just in front of eyes. From slowly flowing freshwater pool at top of salting, Dee Estuary, Cheshire.
2. Potamopyrgus antipodarum. Sole of foot. White pigment spots on tentacle restricted to just in front of eyes. From slowly flowing freshwater pool at top of salting, Dee Estuary, Cheshire.

Potamopyrgus antipodarum. Sole of foot. White pigment spots on tentacle restricted to just in front of eyes. From slowly flowing freshwater pool at top of salting, Dee Estuary, Cheshire.