Black-necked Garter Snake
Thamnophis cyrtopsis (Kennicott, 1860)
| Spanish Name | Culebra Lineada de Bosque |
|---|---|
| Subspecies | 3 (see below) |
| Max. Recorded Length | 114.4 cm; 45 inches |
| Pet Trade Availability | ★★★☆ (frequently available) |
| Captivity Rating | ★★★☆ (good captive) |
Range
USA: Arizona, Colorado, New Mexico, Texas, Utah.
Mexico: Aguascalientes, Chiapas, Chihuahua, Coahuila, Colima, Distrito Federal, Durango, Guanajuato, Guerrero, Hidalgo, Jalisco, México, Michoacán, Morelos, Nayarit, Nuevo León, Oaxaca, Puebla, Querétaro, San Luis Potosí, Sinaloa, Sonora, Tamaulipas, Tlaxcala, Veracruz, Zacatecas.
Description
Subspecies
- Tropical Black-necked Garter Snake
Thamnophis cyrtopsis collaris (Jan, 1863) - Southwestern and southern Mexico; Guatemala.
- Western Black-necked Garter Snake
Thamnophis cyrtopsis cyrtopsis (Kennicott, 1860) - West Texas, western U.S., and north-central Mexico.
- Eastern Black-necked Garter Snake
Thamnophis cyrtopsis ocellatus (Cope, 1880) - Central Texas. A brilliantly colored subspecies.
Invalid Subspecies
- (No common name found)
Thamnophis cyrtopsis cyclides Cope, 1861 - Synonymized with T. c. collaris.
- Mesoamerican Highlands Garter Snake
Thamnophis cyrtopsis fulvus (Bocourt, 1893) - Now recognized as a separate species, T. fulvus.
- Tepalcatepec Valley Garter Snake
Thamnophis cyrtopsis postremus H. M. Smith, 1942 - Now recognized as a separate species, T. postremus.
- Yellow-throated Garter Snake
Thamnophis cyrtopsis pulchrilatus (Cope, 1885) - Now recognized as a separate species, T. pulchrilatus.
- (No common name found)
Thamnophis cyrtopsis vicinus H. M. Smith, 1942 - Now considered a morph of T. c. collaris.
Snakes of the United States and Canada: Natural History and Care in Captivity
Garter and Water Snakes