Hydrobia ulvae. Arrow indicates black subterminal band on the left tentacle which is thicker and less smooth than the right tentacle. Shell height 5.4 mm. Mouth of Dee Estuary, Cheshire.
Hydrobia ulvae. Arrow indicates black subterminal band on the left tentacle which is thicker and less smooth than the right tentacle. Shell height 5.4 mm. Mouth of Dee Estuary, Cheshire.
Hydrobia ulvae. Arrow indicates black subterminal band on the left tentacle which is thicker and less smooth than the right tentacle. Shell height 5.4 mm. Mouth of Dee Estuary, Cheshire.
