Verrill, A. E. (1865). Classification of polyps. (Extract condensed from a Synopsis of the Polypi of the North Pacific Exploring Expedition under Captains Ringgold and Rodgers, U.S.N.). Annals and Magazine of Natural History, 16, 3, 191-197
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Verrill, A. E.
1865
Classification of polyps. (Extract condensed from a Synopsis of the Polypi of the North Pacific Exploring Expedition under Captains Ringgold and Rodgers, U.S.N.)