31 Trivia arctica

31 Trivia arctica

Late-stage post-veliger juvenile.

1: large pitchy brown/black blotches develop near edge of mantle late in juvenile development.
2: unobtrusive yellowish border on rim of mantle.
3: smooth white juvenile shell with adult ribs beginning to develop.

Sublittoral. Kristiansund, Norway. December 2015. Leg. & © Nils Aukan.