Speciation in salamanders of the plethodontid genus Ensatina.

The biology of plethodontid salamanders /
Published: (2000)

The biology of plethodontid salamanders /
Published: (2000)

Geographic variation and speciation in the Torrent salamanders of the genus Rhyacotriton (Caudata : Rhyacotritonidae) /
by: Good, David A., 1956-
Published: (1992)

Speciation in wrens of the genus Campylorhynchus /
by: Selander, Robert K.
Published: (1964)

Variation in the skinks (Reptilia: Lacertilia) of the skiltonianus group /
by: Rodgers, Thomas Lathan, 1909-
Published: (1947)

Morphological differentiation and adaptation in the Galapagos finches.
by: Bowman, Robert I.
Published: (1961)

Response of two terrestrial salamander species to spring burning in the Sierra Nevada, California /
by: Bagne, Karen Elizabeth
Published: (2009)

Cranial and bacular variation in populations of spiny rats of the genus Proechimys (Rodentia: Echimyidae) from South America /
by: Martin, Robert Eugene, 1944-
Published: (1970)

Variability and significance of parietal and ventral scales in the marine snakes of the genus Lapemis (Serpentes, Hydrophiidae), with comments on the occurance of spiny scales in the genus /
by: Gritis, Paul A.
Published: (1990)

The control of pigment formation in amphibian larvae.
by: Johnson, Myrtle Elizabeth, 1881-1967
Published: (1913)

A new salamander of the genus Bolitoglossa from Chiapas /
by: McCoy, C. J. (Clarence J.)
Published: (1966)

Variation and speciation in the grasshoppers of the Conalcaeini (Orthoptera, Acrididae, Melanoplinae) the lowland forms of western Mexico, the genus Barytettix /
by: Cohn, Theodore J.
Published: (1974)

Geographic variation and systematics of salamanders of the genus Dicamptodon Strauch (Ambystomatidae) /
by: Nussbaum, Ronald A.
Published: (1976)

Cranial and bacular variation in populations of spiny rats of the genus Proechimys (Rodentia: Echimyidae) from South America /
by: Martin, Robert Eugene, 1944-
Published: (1970)

Phylogeny, speciation, and palaeoecology of the Early Carboniferous (Mississippian) conodont genus Mestognathus /
by: Von Bitter, Peter H.
Published: (1986)

Populations and type specimens of a nomadic bird : comments on the North American crossbills, Loxia pusilla Gloger 1834 and Crucirostra minor Brehm 1845 /
by: Payne, Robert B.
Published: (1987)

Systematics of the genus Coelocnemis (Coleoptera: Tenebrionidae) ; a quantitative study of variation /
by: Doyen, John T.
Published: (1973)

The distribution, ecology, and evolutionary history of plethodontid salamanders in tropical America /
by: Wake, David B.
Published: (1976)

The evolution of parental care in salamanders /
by: Nussbaum, Ronald A.
Published: (1985)

Variation in the quail-dove Geotrygon frenata /
by: Blake, Emmet Reid, 1908-1997
Published: (1961)

Intraspecific and interspecific variation in the Cryptotis nigrescens species complex of small-eared shrews (Insectivora, Soricidae) : with the description of a new species from Colombia /
by: Woodman, Neal
Published: (1993)

An investigation of evolution in chrysomelid beetles of the genus Leptinotarsa /
by: Tower, William Lawrence, 1872-
Published: (1906)

A new unisexual salamander from Ohio /
by: Kraus, Fred
Published: (1985)

Variation within the Leptodactylus podicipinus-wagneri complex of frogs (Amphibia:Leptodactylidae) /
by: Heyer, W. Ronald
Published: (1994)

Variation in mammalian populations : the proceedings of a symposium held at the Zoological Society of London on 14 and 15 November, 1969 /
Published: (1970)

The natural history and classification of the Mount Lyell salamander, Hydromantes platycephalus.
by: Adams, Lowell, 1913-
Published: (1942)

The evolution of genetic systems /
by: Darlington, C. D. (Cyril Dean), 1903-1981
Published: (1939)

The evolution of genetic systems.
by: Darlington, C. D. (Cyril Dean), 1903-1981
Published: (1958)

The evolution of genetic systems /
by: Darlington, C. D. (Cyril Dean), 1903-1981
Published: (1958)

Variation and evolution in plants.
by: Stebbins, G. Ledyard (George Ledyard), 1906-2000
Published: (1950)

Recent progress in the study of variation, heredity, and evolution /
by: Lock, Robert Heath, 1879-1915
Published: (1906)

Biological emergences : evolution by natural experiment /
by: Reid, Robert G. B., 1939-
Published: (2007)

Biological emergences : evolution by natural experiment /
by: Reid, Robert G. B., 1939-
Published: (2007)

Recent progress in the study of variation, heredity, and evolution /
by: Lock, Robert Heath, 1879-1915
Published: (1911)

Field studies of amphibians in Colombia, South America /
by: Stebbins, Robert C. (Robert Cyril), 1915-2013
Published: (1959)

Further analysis of a population of the lizard Sceloporus graciosus gracilis /
by: Stebbins, Robert C. (Robert Cyril), 1915-2013
Published: (1946)