Aldisa tara
Aldisa tara is a species of sea slug, a dorid nudibranch, a marine gastropod mollusk in the family Cadlinidae. Distribution 
This species was described from British Columbia, Canada. Ecology
Aldisa tara feeds on a red Hymedesmiid sponge, a Hamigera sp. Etymology
The name tara refers to the Hill of Tara, the mythological seat of the high-kings of Ireland. References

Cadlinidae
Gastropods described in 1984