26 Rissoa membranacea.

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26 Rissoa membranacea.

A long, translucent-white, metapodial tentacle extends obliquely upwards from below the posterior of the opercular disc; sometimes a smaller tentacle is visible on each side of it (1). Shell height 4.9mm. Orkney, Scotland. May 2017. Leg. S. Taylor.

Imprint

Photographic guide to the identification and biology of European marine invertebrates

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