Coniophanes is a large genus of colubrid snakes, typically referred to as black-striped snakes, but they also have many other common names. The genus consists of 13 species, and despite the common name, not all of them display striping.
Snakes of the genus Coniophanes grow to a length of 31-46 cm (12-18 inches) and are typically brown in color, with black striping down the sides and center of the back, and a red or orange underside. Some of the species, such as C. alvarezi, are solid brown.
Coniophanes snakes are secretive burrowers. They spend most of their time digging into loose soils, forest leaf litter, or under rotting cactus. They are nocturnal, emerging from their underground retreats in the late evening to feed on frogs, lizards, small rodents, and smaller snakes.
They are oviparous, laying clutches of up to 10 eggs in loose soil which hatch in around 40 days, depending on relative temperature and humidity. Hatchlings are approximately 17 cm (6½ inches) in length.
- Chiapan stripeless snake, Coniophanes alvarezi (Campbell, 1989) - Mexico
- Andresen's snake, Coniophanes andresensis (Bailey, 1937) - Isla San Andres, Colombia
- two-spotted snake, Coniophanes bipunctatus - Mexico, Guatemala, Honduras, Belize, Nicaragua, Panama, El Salvador, and Costa Rica
- Peters' running snake, Coniophanes dromiciformis (Peters, 1863) - Ecuador and Peru
- yellowbelly snake, Coniophanes fissidens - Mexico, Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, Panama, Ecuador, Peru, and Colombia.
- black-striped snake, Coniophanes imperialis - United States (Texas), Mexico, Belize, Guatemala, and Honduras.
- Coniophanes joanae (Myers, 1966) - Panama
- stripeless snake, Coniophanes lateritius - Mexico
- Coniophanes longinquus (Cadle, 1989) - Peru
- Peninsula stripeless snake, Coniophanes meridanus (Schmidt & Andrews, 1936)
- Cope's black-striped snake, Coniophanes piceivittis - Mexico, Belize, Honduras, El Salvador, Nicaragua, and Costa Rica.
- five-striped snake, Coniophanes quinquevittatus (Duméril, Bibron & Duméril, 1854) - Mexico and Guatemala
- faded black-striped snake, Coniophanes schmidti (Bailey, 1937) - Mexico, Belize, and Guatemala.