Dr. James R. Dixon

Curator Emeritus of Amphibians and Reptiles
Professor Emeritus
Mailing Address: Dept. of Wildlife and Fisheries Sciences
Texas A&M University
210 Nagle Hall
College Station, TX 77843-2258
Phone: (979) 845-5783


  • B.A., Howard Payne University, 1950
  • M.S., Texas A&M University, 1957
  • Ph.D., Texas A&M University, 1961

Current Research:

  • Ecology of Big Thicket Amphibians and Reptiles
  • Systematics of Tantilla rubra and Leptotyphlops dulcis
  • Ecology of NE/Argentinan and Paraguayan Amphibians
  • Systematics of the South American snake (genus Liophis)
  • Ecology of Nerodia harteri
  • Systematics of Elaphe guttata

Main Interest:

Systematics of amphibians and reptiles worldwide with emphasis on South America, Central America, Mexico, and USA.

Other Professional Experience:

Board of Directors, Texas Systems of Natural Laboratories; Past-President, Herpetologist League; Past-President, Texas Herpetological Society; Past-President, Texas Academy of Science; Past-President, Society for the Study of Amphibians and Reptiles; Past-President, Southwestern Association of Naturalists; Faculty, University of Southern California; Curator, Los Angeles Museum of Natural History; Faculty, New Mexico State University; Faculty, Stephen F. Austin State University; Faculty, Veterinary College, Texas A&M University.
Research Direction:

Systematics and natural history of Texas amphibians and reptiles, and neotropical amphibians and reptiles. Special interests include the systematics of xenodontine snakes, teiid lizards, phyllodactyline geckos, and skinks. Ancillary interests include life history studies of Texas endangered reptiles and amphibians, and geographic variation, zoogeography, and speciation among Amazonian reptiles using modern statistical techniques and modeling.

Selected Publications :

DIXON, J. R. and P. SOINI. 1986. The reptiles of the upper Amazon Basin, Iquitos region, Peru. 2nd revised edition, 2 parts combined into one, 162 pp. Milwaukee Public Museum, Wisconsin. 154 pp.

DIXON, J. R. 1987. Amphibians and Reptiles of Texas. Texas A&M University Press, College Station. 434 pp.

MCCRYSTAL, H. K. and J. R. DIXON. 1987. A new species of whiptail lizard, genus Cnemidophorus (Sauria; Teiidae) from the Llanos of Colombia and Venezuela, South America. Journal of Herpetology, 21(4):245-254.

GALLAGHER, D. S. and J. R. DIXON. 1992. Taxonomic revision of the South American lizard genus Kentropyx Spix (Sauria: Teiidae). Museo Regionale di Scienze Naturali – Torino, 10(1):125-171.

GOLAY, P., H. M. SMITH, D. G. BROADLEY, J. R. DIXON, C. McCARTHY, J. C. RAGE, B. SCHATTI, and M. TORIBA. 1993. Endoglyphs and other major venomous snakes of the world. Azemiops, S. A. Islamic Printing and Publishing Co., Egypt. 478 pp.

CAMPER, J. D. and J. R. DIXON. 1994. Geographic variation and systematics of the striped whipsnakes (Masticophis taeniatus complex; Reptilia: Serpentes: Colubridae). Annals of the Carnegie Museum, 63(1):1-48.

WIEST, J. A., J. R. DIXON and C. M. CEI. [1993] 1995. Revision of the neotropical snake genus Chironius Fitzinger (Serpentes, Colubridae). Mongr. XIII, Museo Regionale di Scienze Naturali – Torino, 279 pp.

J. R. DIXON, C. MERCOLLI, and A. A. YANOSKY. 1995. Some aspects of the ecology of Pseudis paradoxa from Northeastern Argentina. Herpetological Review, 26(4):183-185.

Comments are closed.