18 Rissoa parva

18 Rissoa parva

1: snout translucent whitish as salivary glands and buccal mass retracted into head. 2: pale-yellow salivary gland on either side of radula tube. 3: bright-yellow buccal mass containing odontophore. Shell height 3.2 mm. Llŷn, Wales, March 2015.

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