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Richard G. Zweifel
Richard George Zweifel (born November 5, 1926 in Los Angeles, died November 25, 2019 ) was an American herpetologist, who classified several species in the American Southwest and in Australia, including the rattling frog. Zweifel worked at the American Museum of Natural History from 1954 to 1989, and was Herpetology Department Chairman from 1968 to 1980. 
Zweifel was a resident of
Northvale, New Jersey, and in Arizona.  
Bibliography Zweifel RG (1955). "Ecology, distribution and systematics of frogs of the
Rana boylei group". Univ. California Pub. Zool. 54 (4): 207-292. Zweifel RG (1985).
Australian Frogs of the Family Microhylidae. ISBN 99953-48-60-8. Zweifel RG (1998).
Encyclopedia of Reptiles & Amphibians. (with Harold George Cogger and David Kirshner) ISBN 0-12-178560-2. Zweifel RG (2001). Encyclopedia of Animals: Mammals, Birds, Reptiles, Amphibians. (with Harold George Cogger, Joseph Forshaw, Edwin Gould, and George McKay) ISBN 1-875137-99-8.
In 1984, he was honored by the naming of "
Zweifel's frog" ( Lithobates zweifeli ), found in Mexico, and in 1998 a microhylid frog  was named after him. Cophixalus zweifeli Several other amphibians have been named for him:  , Nyctimystes zweifeli , and Xenorhina zweifeli , as is the proposed (sub)genus Oscaecilia zweifeli . Zweifelia 
"About the Department". American Museum of Natural History, Division of Vertebrate Zoology, Department of Herpetology . Retrieved .
^ Stock, Robert W. (1969).
"At 100, the Museum Of Natural History Is No Fossil; Behind the scenes, a great institution is striving to make its second century even better". , June 29, 1969. Accessed November 22, 2017. "Dr. Zweifel's specialty is frogs, and he pursues them in the swamps of New Jersey (he lives in Northvale, N. J.) and the jungles of New Guinea." The New York Times
^ a b
Beolens, Bo; Watkins, Michael & Grayson, Michael (2013). . Pelagic Publishing. p. 241. The Eponym Dictionary of Amphibians ISBN . 978-1-907807-42-8
Hillis, David M.; Frost, John S.; Webb, Robert G. (1984-05-01). "A new species of frog of the Rana tarahumarae group from southwestern Mexico" (PDF). Copeia. 1984 (2): 398-403. doi: 10.2307/1445197. Archived from the original (PDF) on 2011-07-26 . Retrieved .
Davies MM; McDonald KR (1998). "A new species of frog (Anura: Microhylidae) from Cape Melville, Queensland". Transactions of the Royal Society of South Australia. 122: 159-164.