About Thamnophis marcianus (Baird & Girard, 1853)
The checkered garter snake, with the scientific name Thamnophis marcianus, is typically greenish in color, with a distinct black checkerboard pattern running along its back. This species can reach a total length including the tail of 42 inches (107 cm), though most individuals grow between 18 to 24 inches (46 to 61 cm). The natural habitats preferred by Thamnophis marcianus are desert, grassland, shrubland, and forest, and these snakes are usually found close to water. They occur at altitudes ranging from sea level up to 2,200 m (7,200 ft). Thamnophis marcianus is ovoviviparous, and may also be capable of parthenogenetic reproduction.