About Catriona columbiana (O'Donoghue, 1922)
Catriona columbiana, commonly known as the British Columbia aeolid, is a species of sea slug. It is classified as an aeolid nudibranch, a type of marine gastropod mollusc that belongs to the family Trinchesiidae. This species was first described from Gabriola Pass, Nanaimo, Vancouver Island, British Columbia, Canada. It has been recorded along the Eastern Pacific coastline of North America, ranging from Cutter Rock, Ketchikan, Alaska, south to San Diego, California. In its ecosystem, Catriona columbiana feeds on athecate hydroids from the genera Tubularia and Syncoryne.
