Verrill 1866. Synopsis of the Polyps and Corals of the North Pacific Exploring Expedition, under Commodore C. Ringgold and Captain John Rogers, U.S.N., from 1853 to 1856. Collected by Dr. Wm. Stimpson, naturalist to the Expedition. With Descriptions of some additional Species from the West Coast of North America. Parts 2 & 3. Proceedings Essex Institute, vol. iv 1866: pp. 181-196