Ariadnaria willetti is a species of small sea snail, a marine gastropod mollusk in the family Capulidae, the cap snails.
Distribution The holotype was found in the coastal waters of Southeast Alaska and British Columbia.
References
Clark, R.N. (2022). Three new trichotropid gastropods (Capulidae: Trichotopinae) from Alaska. The Festivus. 54(2): 174–178.