An impressive coral (Primnoa pacifica) provides shelter to large nudibranchs, small white snails, and a fish. This was just one of many very large Primnoa coral colonies seen along a rocky ridge in Cordova Bay. This was observed during Dive 11 of the Seascape Alaska 5 expedition.
Coral and Associates
Image courtesy of NOAA Ocean Exploration, Seascape Alaska. Download larger version (jpg, 15.2 MB).

An impressive coral (Primnoa pacifica) provides shelter to large nudibranchs, small white snails, and a fish. This was just one of many very large Primnoa coral colonies seen along a rocky ridge in Cordova Bay during Dive 11 of the Seascape Alaska 5 expedition.