Scaphiodontophis annulatus

Scaphiodontophis annulatus, commonly known as the Guatemala neckband snake, is a species of snake in the family Colubridae. The species is native to southern Mexico, Central America, and Colombia. There are four recognized subspecies.

Taxonomy
The following four subspecies are recognized as being valid. The subspecific name, dugandi, is in honor of Colombian biologist Armando Dugand.
 * Scaphiodontophis annulatus annulatus (A.M.C. Duméril, Bibron & A.H.A. Duméril, 1854)
 * Scaphiodontophis annulatus dugandi Roze, 1969
 * Scaphiodontophis annulatus hondurensis (Schmidt, 1936)
 * Scaphiodontophis annulatus nothus Taylor & H.M. Smith, 1943

Distribution and habitat
S. annulatus is found in Mexico, Belize, Colombia, El Salvador, Guatemala, Honduras, and Nicaragua.

The preferred natural habitat of S. annulatus is forest at altitudes from sea level to 1,200 m.

Reproduction
''S. annulatus is oviparous.