UIBRARY NOV 2 2 1977 MAfs?VARD Occasional Papers On Mollusks ^••^'^ I'ublislied by The Department of Mollusks Museum of Comparative Zoology, Harvard University Cambridge, Massachusetts VOLUME 4 OCTOBER 21, 1977 NUMBER 58 Arnold Edward Ortmann, A Bibliography of his Work on Mollusks, with a Catalogue of his Recent Molluscan Taxa By Richard I. Johnson Arnold Edward Ortmann was the foremost student of the Unionacea, or freshwater mussels, of the United States during the first quarter of this century. Simpson completed his important world-wide revision of the Unionacea, "Syn-opsis of the Naiades," in 1900 which was expanded, with little change, into "A Descriptive Catalogue of the Naiades" (1914). Ortmann augmented Simpson's system, with his careful work on the morphology and classification of the Unionacea based on anatomy, expecially the structure of the gills (1912). He also studied the zoogeography of the unionid species in, "The Alleghenian Divide, and its Influ-ence upon the Freshwater Fauna" (1913). These works quickly established Ortmann as America's leading unionid expert. Ortmann was born in Magdeburg, Saxony, April 8, 1863. He studied at the universities of Kiel, Strasbourg and Jena. At Jena he received his Ph.D. in 1885. He was one of Ernst Haeckel's favorite pupils. When Haeckel went on an expedition to Zanzibar, he took Ortmann with him as an assistant. For a time Ortmann was an instructor in the University of Strassburg. His first two works on mol-lusks concerned collections of Cephalopods at the Strasbourg Museum made by Doderlein in Japan (1888) and the Sarasins in Ceylon (1891). Ortmann came to the United States in 1894 and became 229
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