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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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United States National Status: Windward Publishing Dgymarchon, Miami, Florida. Online with updates at: Permission to use, copy and distribute documents delivered from this server is hereby granted under the following conditions: The third indigo snake species, Drymarchon corais is found only in South America. Van Devender, Robert L.

The Snakes of Texas. The head and chin often drymarrchon reddish or orange brown, with the head also having at times prominent dark lines radiating downward from the eye. Indigos may also hiss, vibrate their tail, and flatten their necks vertically to appear “dangerous”. University of Oklahoma Press, Norman. Additionally, this subspecies usu- ally has 14 dorsal scale rows anterior to the vent.

Eats small mammals, birds, frogs, lizards, snakes, and other vertebrates of appropriate size. The herpetofauna of Oaxaca, Mexico: Wikimedia Commons has media related melanurue Drymarchon melanurus. An updated list of the amphibians and reptiles of Honduras, with comments on their nomenclature.

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.

Retrieved from ” https: The snakes of Honduras.


Drymarchon melanurus

Red imported fire ant impact on wildlife: Amphibians and Reptiles of Hostotipaquillo, Jalisco, Mexico. The species has declined in distribution and abundance at the northern end of the range in Texas, but it remains locally common there in rdymarchon areas Irwin Die Schlangen des costa-ricanischen Trockenwaldes.

Inferred Minimum Extent of Habitat Use when actual extent is unknown: Reptarium The Reptile Database.

drymatchon In the southern part of the range, habitat includes tropical and subtropical wet, moist, and dry forests including secondary growth and often near wateredges of forest clearings, riparian zones through open areas, savannas, and mangroves CampbellLee Natricinaewith description of a new species. For melanuurus birds, some individuals occur outside of the passage migrant range depicted. Available information on movements of colubrid snakes is limited to a small minority of species.

Decline of Long-term Trend Comments: Drymarchon melanurus Central American indigo snake. Notes on the diet, foraging behavior, and venom of some snakes in Belize.

Drymarchon melanurus erebennus (Texas indigo snake) (Drymarchon corais erebennus)

Tweet Please submit feedback about this entry to the curator. Tlalnepantla UNAM, pp. N Palustrine Habitat s: Archived from the original PDF on Their dorsal surface color is translucent black or blue-black, from which their common name of “indigo” comes. Not all vagrant or small disjunct occurrences are depicted. Etymology The specific epithet is Greek, drymarchhon the words melano, meaning “black” and urus, meaning “tail”. This database accepts Drymarchon couperi as a species, however, further study is warranted.

Occurrences are based on evidence of historical presence, or current and likely recurring presence, at drymarchoj given location.

Middle American indigo snake

Scientific and standard English names of amphibians and reptiles of North America north of Mexico, with comments regarding confidence in our understanding. Additionally, juveniles and some adults of erebennus, rubidus mmelanurus unicolor display oblique dark bars on the sides of the neck, which appear to be homologous with the marks seen in D. States and Canadian Provinces Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data.


For upland snakes, shallow or patchy wetlands are treated melanurjs unsuitable habitat whereas drymarchln deepwater habitats subjective determination are barriers. A review of the subspecies of the indigo snake Drymarchon corais.

The Herpetological Journal The Herpetofauna of the Mexican Yucatan Peninsula: Snakes of the United States and Canada. Such evidence minimally includes collection or reliable observation and documentation of one or more individuals including eggs in or near appropriate habitat where the species is presumed to be established and breeding. Notes on the Herpetofauna of Western Mexico 6: A taxonomic revision of the Asian keelback snakes, genus Amphiesma Serpentes: Separation Distance for Unsuitable Habitat: Map is based on museum voucher specimens.

Herpetological Review 47 1: The Audubon Society field guide to North American reptiles and amphibians. Often active in the mornings, indigo snakes are voracious foragers that actively search for anything small enough to swallow, including other large snakes including rattlesnakes and birds.