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Adult, 100′, Oaxaca, Mexico
Adult, 100′, Oaxaca, Mexico
Adult, 100′, Oaxaca, Mexico
Adult Female, 100′, Oaxaca, Mexico
Close-Up of Head
DUNN’S HOG-NOSED VIPER
Porthidium dunni – Hartweg & Oliver 1938
IDENTIFICATION:
DISTRIBUTION:
This beautiful species is found in the coastal lowlands of Oaxaca and within a few kilometers of the Oaxaca border in extreme western Chiapas, Mexico. In Oaxaca it occurs [...]
Adult, 2,200′, Pima County, Arizona
Adult, Kern Co., California
WESTERN LONG-NOSED SNAKE
Rhinocheilus lecontei – Baird & Girard 1853
Rhinocheilus lecontei lecontei – Baird & Girard 1853
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YUCATAN BLIND SNAKE
Typhlops microstomus – Cope 1866
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Sub-Adult, 5,371′, Puebla, Mexico
BLACK-HEADED LYRE SNAKE
Trimorphodon tau – Cope 1870
Trimorphodon tau latifasciata – Peters 1869
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Habitat, 5,000′, Puebla, Mexico
Capture Site of Pictured Animal, 5,371′, Puebla, Mexico
Microhabitat, 5,000′, Puebla, Mexico
Habitat, Northern Oaxaca, Mexico
Habitat, Northern Oaxaca, Mexico
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I have found this snake only twice to date. Both were found in July, 2005 during the summer rainy season; [...]
Adult, 2,000′, Sonora, Mexico
Adult, 2,000′, Sonora, Mexico
Neonate, 2,600′, Pima County, Arizona
SONORAN LYRE SNAKE
Trimorphodon lambda – Cope 1886
IDENTIFICATION:
DISTRIBUTION:
Trimorphodon biscutatus lambda is found nearly statewide in Sonora, from the Sierra Pinacate and associated Lava Flow near Sonoyta, to the foothills of the Sierra Madre Occidental along the Chihuahua border; it also occurs in [...]
Juvenile, 200′, Colima, Mexico
MEXICO LYRE SNAKE
Trimorphodon biscutatus – Dumeril, Bibron & Dumeril 1854
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Habitat, 500′, Oaxaca, Mexico
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I have been fortunate in encountering this snake many times in the wild. I have seen it in the states of Jalisco, Colima, Michoacan and Oaxaca; often times a single nights’ drive will turn up several of these [...]
SAN FELIPE GROUND SNAKE
Conopsis megalodon – Taylor & Smith 1942
IDENTIFICATION:
DISTRIBUTION:
Conopsis megalodon is found only in the highlands of the Sierra Madre del Sur of Guerrero and Oaxaca, as well as the mountains surrounding Ciudad Oaxaca and Cerro San Felipe, Oaxaca, Mexico. It’s elevational distribution is between 1730 and 3200 m.
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This species is found in and [...]
Adult, El Chico Parque Nacional, Hidalgo, Mexico
LINED TOLUCAN GROUND SNAKE
Conopsis lineata – Kennicott 1859
IDENTIFICATION:
DISTRIBUTION:
Conopsis lineata is a wide-ranging species; it is found from Durango and San Luis Potosà south through the Sierra Madre Occidental and Sierra Madre Oriental (respectively) to the Mexican Plateau and Cordillera Volcanica and as far south as the highlands of northwestern [...]
Adult, 5,800′, Puebla, Mexico
Adult, 7,000′, Puebla, Mexico
SPOTTED GROUND SNAKE
Conopsis acuta – Cope 1886
IDENTIFICATION:
DISTRIBUTION:
Conopsis acuta is distributed in the highlands of northern Oaxaca, southern Puebla and adjacent Veracruz (in the vicinity of los Cumbres de Acultzingo), Mexico at elevations of 1800-2600 m.
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Conopsis acuta is found in a wide variety of habitats, including xeric desert mountains, [...]
Adult, 7,500′, Tamaulipas, Mexico
MEXICO HIGHLAND GARTER SNAKE
Thamnophis pulchrilatus – Cope 1885
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This species was long confused with Thamnophis cyrtopsis, a species with which it shares a striking resemblance (and is clearly closely allied to).
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My experiences with this species are limited. In August, 2004 I found two large adult snakes (one pictured above) 1/4 [...]
LOWE’S GARTER SNAKE
Thamnophis sirtalis – Linnaeus 1758
Thamnophis sirtalis lowei – Tanner 1988
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Distributed throughout the Rio Casas Grandes drainage of northwestern Chihuahua, to around 2,050 m Elevation.
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Some authorities consider lowei to be a synonym of the subspecies dorsalis, which occurs along the Rio Grande of New Mexico.
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I have no experience with this [...]
NEW MEXICO GARTER SNAKE
Thamnophis sirtalis – Linnaeus 1758
Thamnophis sirtalis dorsalis – Baird & Girard 1853
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The New Mexico Garter Snake has never been recorded from Mexico. Habitat along the Rio Grande is highly altered by agriculture and industry, but snakes may persist along canals in the immediate vicinity of Cuidad Juarez. In the United States this [...]
Adult, DOR, 100′, Guerrero, Mexico
MEXICO RIBBON SNAKE
Thamnophis proximus – Say 1823
Thamnophis proximus rutiloris – Cope 1885
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DISTRIBUTION:
Thamnophis proximus rutiloris is the most widespread Ribbon Snake in Mexico. It occurs along the Atlantic Coastal Plain from southern Tamaulipas (where it intergrades with the northern subspecies orarius around Soto la Marina and Cuidad Victoria), southward through San Luis [...]
CHIAPAS HIGHLAND RIBBON SNAKE
Thamnophis proximus – Say 1823
Thamnophis proximus alpinus – Rossman 1963
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RIO TEPALCATEPEC GARTER SNAKE
Thamnophis postremus – Smith 1942
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