Browsing by Author "Ripley, Sidney Dillon, 1913-"
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Item Birds collected during the Whitney South Sea Expedition. 44, Notes on the genus Lalage Boie. American Museum novitates ; no. 1116(New York City : The American Museum of Natural History, 1941) Mayr, Ernst, 1904-; Ripley, Sidney Dillon, 1913-; Whitney South Sea Expedition of the American Museum of Natural History (1920-1941)Item Birds collected during the Whitney South Sea Expedition. 51, On the fruit pigeons of the Ptilinopus purpuratus group. American Museum novitates ; no. 1192(New York City : The American Museum of Natural History, 1942) Ripley, Sidney Dillon, 1913-; Birckhead, Hugh.; Whitney South Sea Expedition of the American Museum of Natural History (1920-1941)Item Description of a new subspecies of the white-fronted goose, Anser albifrons. American Museum novitates ; no. 2565(New York, N.Y. : American Museum of Natural History, 1975) Delacour, Jean, 1890-; Ripley, Sidney Dillon, 1913-"Anser albifrons elgasi is described as a new subspecies of the white-fronted goose from winter specimens in central California. It presumably breeds in the taiga of inland Alaska. The new form is compared with North American A.a. gambeli and A.a. frontalis"--P. [1].