Drymarchon melanurus erebennus, commonly known as the Texas indigo snake, is a large, nonvenomous, colubrid snake native to Texas and Mexico. (Source. Drymarchon melanurus – (Dumeril, Bibron, and Dumeril, ) Central American Indigo Snake Other English Common Names: Central American indigo snake. Range Description. The range extends in the United States from southern Texas and Sonora south through the Gulf Coast of Mexico through the Yucatan.

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In Central America, Smith noted the existence of hybrid zones between melanurus on one hand and the taxa erebennus, orizabensis and rubidus on the other. Eastern indigo snake Drymarchon corais couperi Holbrook.

Comprehensive Report Species – Drymarchon melanurus

NatureServe may update or make changes to the documents provided by this server at any time without notice; however, NatureServe makes no commitment to update the information contained herein. Mesoamerican Herpetology 4 2: Occurrences are based on evidence of historical presence, or current and likely recurring presence, at a given location.

Van Devender, Robert L. Rare and endangered biota of Florida. The herpetofauna of Puebla, Mexico: Looking for Macanches in the dry forest of Peru.

Drymarchon melanurus

Animals, Vertebrates – Reptiles – Snakes. Snakes of the United States and Canada.

A field guide to reptiles and amphibians: Elevational range in Guatemala is from near sea level to around 1, meters 6, feet Campbell Check List 2 1: Etymology The specific epithet is Greek, from the words melano, meaning “black” and urus, meaning “tail”. Reproductive cycles of lizards and snakes.


This page was last edited on 17 Aprilat Central Venezuela, pp. The species has declined in distribution and abundance at the northern end of the range in Texas, but it remains locally common there in some areas Irwin Permission to use, copy and distribute documents delivered from this server is hereby granted under the following conditions: Retrieved 8 February Except as expressly provided above, nothing contained herein shall be construed as conferring any license or right under any NatureServe copyright.

Wikimedia Commons has mdlanurus related to Drymarchon melanurus. An updated checklist of the herpetofauna from Guerrero, Mexico. By using this site, you agree to the Terms of Use and Privacy Policy. Indigo snakes are listed as threatened by the Texas Parks and Wildlife Department and are protected by the state of Texas.

Separation Distance for Unsuitable Habitat: Each document delivered from this server or web site may contain other proprietary notices and copyright information relating to that document. Pantherophis and probably other colubrids exhibit high fidelity to hibernacula and shift even to nearby drymarhon only rarely Prior et al.

Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. Online with updates at: The following citation should be used in any published materials which reference the web site.


Integrated Taxonomic Information System. Reptarium The Reptile Database. Johnson and Larry David Wilson.

Middle American indigo snake

University of Oklahoma Press, Norman. Since the data in the central databases are continually being updated, it is advisable to refresh data retrieved at least once a year after its receipt. A heavy-bodied snake, blue-black or mixed brown and black above; chin, throat, and sides of head variably suffused with cream, orange, or red; scales unkeeled males may have partial keel on scales of the middorsal scale rows ; anal undivided; 17 scale rows at mid-body; 1 preocular; third from last upper labial distinctly narrowed at the top; adult total length usually cm to cm south of the U.

The Herpetofauna of Chiapas, Mexico: Site specific projects or activities should be reviewed for potential environmental impacts with appropriate regulatory agencies. The Middle American indigo snake Drymarchon melanurusalso known as the blacktail cribois a large, non venomouscolubrid snake species found in the southwestern United StatesMexicoCentral Americaand northern South America. In most of the range, this species does not appear to be significantly threatened.