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Cogger, Harold G. [Other]; Kirshner, David [Illustrator]; Zweifel, Richard G. [Other]

Enzyklopädie der Reptilien und Amphibien

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Augsburg: Bechtermünz Verl., 1999
Zweifel, Richard George, 1926- [Author]; Cogger, Harold G. [Author]; Richards, Stephen J. [Author]

Systematics of microhylid frogs, genus Oreophryne, living at high elevations in New Guinea. American Museum novitates ; no. 3495 ; Systematics of Oreophryne

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http://hdl.handle.net/2246/5664

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New York, NY : American Museum of Natural History, 2005
ZWEIFEL, RICHARD G.

A New Species of Microhylid Frog, Genus Oreophryne, from Papua New Guinea

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American Museum of Natural History (BioOne sponsored), 2003

Published in: American Museum Novitates
ZWEIFEL, RICHARD G.

PARTITION OF THE AUSTRALOPAPUAN MICROHYLID FROG GENUS SPHENOPHRYNE WITH DESCRIPTIONS OF NEW SPECIES

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American Museum of Natural History (BioOne sponsored), 2000

Published in: Bulletin of the American Museum of Natural History
Zweifel, Richard G.

Apparent Non-Mendelian Inheritance of Melanism in the Garter Snake Thamnophis sirtalis

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Herpetologists' League, 1998

Published in: Herpetologica
Zweifel, Richard G.

Alternating Use of Hemipenes in the Kingsnake, Lampropeltis getula

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JSTOR, 1997

Published in: Journal of Herpetology
Zweifel, Richard G.

Alternating Use of Hemipenes in the Kingsnake, Lampropeltis getula

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Society for the Study of Amphibians and Reptiles, 1997

Published in: Journal of Herpetology
Zweifel, Richard G.

Calling by the Frog, Rana sylvatica, outside the Breeding Season

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JSTOR, 1989

Published in: Journal of Herpetology
Zweifel, Richard G.

Calling by the Frog, Rana sylvatica, outside the Breeding Season

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Society for the Study of Amphibians and Reptiles, 1989

Published in: Journal of Herpetology
Zweifel, Richard G.

Identity of a Supposed South American Microhylid Frog, Ctenophryne marmorata

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JSTOR, 1989

Published in: Copeia
Zweifel, Richard G.

Review: Advances in Herpetology and Evolutionary Biology: Essays in Honor of Ernest E. Williams

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Herpetologists' League, 1984

Published in: Herpetologica
Zweifel, Richard G.

Genetics of color pattern polymorphism in the California kingsnake

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Oxford University Press (OUP), 1981

Published in: Journal of Heredity
Zweifel, Richard G.

Review: This Broken Archipelago: Cape Cod and the Islands, Amphibians and Reptiles

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Society of Systematic Zoology, 1977

Published in: Systematic Zoology
Zweifel, Richard G.

Desert Biology. Special Topics on The Physical and Biological Aspects of Arid Regions. Volume II.G. W. Brown, Jr

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University of Chicago Press, 1975

Published in: The Quarterly Review of Biology
Zweifel, Richard G.

Review: Desert Biology. Special Topics on The Physical and Biological Aspects of Arid Regions. Volume II

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Stony Brook Foundation, Inc., 1975

Published in: The Quarterly Review of Biology
Zweifel, Richard G.

Distribution and Mating Call of the Treefrog, Hyla chrysoscelis, at the Northeastern Edge of Its Range

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Springer Science and Business Media LLC, 1970

Published in: Chesapeake Science
Zweifel, Richard G.

Distribution and Mating Call of the Treefrog, Hyla chrysoscelis, at the Northeastern Edge of Its Range

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Natural Resources Institute of the University of Maryland, Chesapeake Biological Laboratory, 1970

Published in: Chesapeake Science
Zweifel, Richard G.

Effects of Temperature, Body Size, and Hybridization on Mating Calls of Toads, Bufo a. americanus and Bufo woodhousii fowleri

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JSTOR, 1968

Published in: Copeia
Zweifel, Richard G.

Identity of the Frog Cornufer unicolor and Application of the Generic Name Cornufer

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JSTOR, 1967

Published in: Copeia
Zweifel, Richard G.

Review: The World of Reptiles

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Society of the Sigma Xi, 1966

Published in: American Scientist

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