Within the mantle cavity behind the right tentacle, males have large, curved, buff-white penis (1) with a few dark marks basally.
Shell height 27.1 mm, Llŷn Peninsula, Wales, March 2016.
Within the mantle cavity behind the right tentacle, males have large, curved, buff-white penis (1) with a few dark marks basally.
Shell height 27.1 mm, Llŷn Peninsula, Wales, March 2016.