Trimorphodon is a genus of mildly venomous, rear-fanged, colubrid snakes. They are commonly known as lyre snakes, named after the distinctive V-shaped pattern on their head that is said to resemble the shape of a lyre. In Mexico, they are commonly called "víbora de uña," or "nail viper."[2] The word Trimorphodon is a combination of three Greek words, 'tri' - three, 'morph' - shape, and 'odon' - teeth, which refers to the three distinct kinds of teeth that lyre snakes have: recurved anterior teeth; shorter middle teeth, and large grooved fangs at the rear of the jaw. There are seven distinct species in the genus Trimorphodon.
^Wright, A.H. and A.A. Wright. 1957. Handbook of Snakes of the United States and Canada. Comstock. Ithaca and London.
^SOS SIERRA LOS HUICHOLES, JALISCO[permanent dead link]. Under "Listado de Fauna"
Trimorphodon is a genus of mildly venomous, rear-fanged, colubrid snakes. They are commonly known as lyre snakes, named after the distinctive V-shaped...
The western lyre snake (Trimorphodon biscutatus) is a mildly venomous colubrid snake native to Mexico and Guatemala. They are a moderately sized snake...
The Texas lyre snake (Trimorphodon vilkinsonii) is a species of mildly venomous, rear-fanged snake in the family Colubridae. The species is endemic to...
Trimorphodon tau, the Mexican lyre snake, is a species of snake of the family Colubridae. The snake is found in Mexico. Mendoza-Quijano, F.; Hammerson...
Trimorphodon lambda, the Sonoran lyre snake, is a species of snake of the family Colubridae. The snake is found in the United States and Mexico. Hammerson...
Trimorphodon lyrophanes, the Baja California lyre snake, is a species of snake of the family Colubridae. The snake is found in the United States and Mexico...
Trimorphodon quadruplex, the Central American lyre snake, is a species of snake of the family Colubridae. The snake is found in Nicaragua, Honduras, El...
Trimorphodon paucimaculatus, the Sinaloan lyre snake, is a species of snake of the family Colubridae. The snake is found in Mexico. "Trimorphodon paucimaculatus"...
include Oxyrhopus trigeminus, Philodryas patagoniensis, Spilotes pullatus, Trimorphodon biscutatus, Philodryas baroni, and Oxyrhopus guibei. It is thought that...
ochrorhynchus texana, p. 93). Taylor EH (1938). "On Mexican Snakes of the Genera Trimorphodon and Hypsiglena ". Univ. Kansas Sci. Bull. 25 (16): 357-383. (Hypsiglena...
Trachischium Genus Tretanorhinus Genus Trimerodytes Genus Trimetopon Genus Trimorphodon Genus Tropidoclonion Genus Tropidodipsas Genus Tropidodryas Genus Tropidonophis...
occidentalis) Western ground snake (Sonora semiannulata) Western lyre snake (Trimorphodon biscutatus) Western patch-nosed snake (Salvadora hexalepis) Western skink...
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