Gunther, Albert Catalogue of the physostonic contain the families in the collection of the British Museum volume 5 and 6 Albert Gunther - New York Wheldon and Wesley Limited 1964 - xxii,368p. ill. 19cm. Includes index Subjects--Topical Terms: PhysostonmiBritish museum, Classification LC Class. No.: ZOO QK666.P67G45