The milk snake or milksnake, is a species of kingsnake; 24 subspecies are currently recognized. Lampropeltis elapsoides, the scarlet kingsnake, was formerly classified as a 25th subspecies, but is now recognized as a distinct species. The subspecies have strikingly different appearances, and many of them have their own common names. Some authorities suggest that this species could be split into several separate species. They are not venomous to humans.
Spiny lizards is a common name for the genus Sceloporus in the family Phrynosomatidae. The genus is endemic to North America, with various species ranging from New York, to Washington, and one occurring as far south as northern Panama. The greatest diversity is found in Mexico. This genus includes some of the most commonly seen lizards in the United States. Other common names for lizards in this genus include fence lizards, scaly lizards, bunchgrass lizards, and swifts.
Gerrhonotus is a genus of anguid lizards that are commonly referred to as alligator lizards, due to a vague resemblance to an alligator. Most species are restricted to Mexico, but a few range into Guatemala or Texas, and G. rhombifer is from Costa Rica and Panama. Along with glass lizards (Ophisaurus) and many other lizards, alligator lizards have the ability to regrow their tail.
Marie Firmin Bocourt was a French zoologist and artist.
Sceloporus grammicus is a species of lizard from Mexico and the southern United States. It is sometimes referred to as the mesquite lizard or graphic spiny lizard.
Sceloporus serrifer, the rough-scaled lizard or Yucatecan rough-scaled lizard, is a species of phrynosomatid lizard.
Hobart Muir Smith, born Frederick William Stouffer, was an American herpetologist. He is credited with describing more than 100 new species of American reptiles and amphibians. In addition, he has been honored by having at least six species named after him, including the southwestern blackhead snake, Smith's earth snake, Smith's arboreal alligator lizard, Hobart's anadia, Hobart Smith's anole, and Smith's rose-bellied lizard. At 100 years of age, Smith continued to be an active and productive herpetologist. Although he published on a wide range of herpetological subjects, his main focus throughout his career was on the amphibians and reptiles of Mexico, including taxonomy, bibliographies, and history. Having published more than 1,600 manuscripts, he surpassed all contemporaries and remains the most published herpetologist of all time.
Norman Edouard "Kibe" Hartweg was an American herpetologist, Curator of Herpetology for the Museum of Zoology at the University of Michigan, and president of the American Society of Ichthyologists and Herpetologists. He was a specialist in the taxonomy and distribution of turtles, and is honored by having a subspecies of turtle named after him: the western spiny softshell turtle, Apalone spinifera hartwegi. He is also credited with having described several new species, including the Big Bend slider, Trachemys gaigeae, the Oaxacan patchnose snake, Salvadora intermedia, and Dunn's hognose pit viper, Porthidium dunni.
Kenneth Lee Williams was an American herpetologist and author of books on the subject of snake biology and classification. Williams retired from teaching in Northwestern State University's biology department and received emeritus status in 2001. Williams is considered an authority on the milk snake and the herpetology of the Honduran Cloud Forest.
The yellow-red rat snake is a species of snake in the family Colubridae. The species is endemic to Mexico and Central America. Three subspecies are recognized.
Sceloporus jarrovii, also known commonly as Yarrow's spiny lizard, is a species of lizard in the family Phrynosomatidae. The species is native to the southwestern United States and northern Mexico. There are two recognized subspecies.
Cnemidophorus deppii, known commonly as the blackbelly racerunner, is a species of lizard in the family Teiidae. The species is native to Central America and southern Mexico. There are three recognized subspecies.
Holcosus chaitzami, also known commonly as Chaitzam's ameiva, is a species of lizard in the family Teiidae. The species is native to extreme southern North America and Central America.
Pituophis lineaticollis, commonly known as the Middle American gopher snake or the cincuate bull snake, is a species of nonvenomous snake in the family Colubridae. The species is native to Guatemala and southeastern Mexico. There are two recognized subspecies.
Scincella cherriei, commonly known as the brown forest skink and Cope's brown forest skink, is a species of lizard in the family Scincidae. The species is native to Central America and adjacent southeastern Mexico. Three subspecies are recognized.
Laemanctus serratus, also known commonly as the serrated casquehead iguana, is a species of lizard in the family Corytophanidae. The species is native to southeastern Mexico and Central America. There are two recognized subspecies.
Sceloporus dugesii, also known commonly as Dugès' spiny lizard and la lagartija espinosa de Dugès del este in Mexican Spanish, is a species of lizard in the family Phrynosomatidae. The species is endemic to Mexico.
Sceloporus halli, also known commonly as Hall's spiny lizard and la espinosa de Hall in Mexican Spanish, is a species of lizard in the family Phrynosomatidae. The species is endemic to Mexico.
Sceloporus lundelli, also known commonly as Lundell's spiny lizard and la espinosa de Lundell in Mexican Spanish, is a species of lizard in the family Phrynosomatidae. The species is native to the Yucatán Peninsula in Mexico, Belize, and Guatemala. There are two recognized subspecies.
