Reptiles, as most commonly defined, are the animals in the class Reptilia ; a paraphyletic grouping comprising all sauropsids except birds. Living reptiles comprise turtles, crocodilians, squamates and rhynchocephalians (tuatara). As of May 2023, the Reptile Database includes about 12,000 species. Reptilia has been subject to numerous conflicting taxonomic definitions. In the traditional Linnaean classification system, birds are considered a separate class to reptiles. However, crocodilians are more closely related to birds than they are to other living reptiles, and so modern cladistic classification systems include birds within Reptilia, redefining the term as a clade. Other cladistic definitions abandon the term reptile altogether in favor of the clade Sauropsida, which refers to all amniotes more closely related to modern reptiles than to mammals. The study of the traditional reptile orders, customarily in combination with the study of modern amphibians, is called herpetology.
Herpetology is the branch of zoology concerned with the study of amphibians and reptiles. Birds, which are cladistically included within Reptilia, are traditionally excluded here; the scientific study of birds is the subject of ornithology.
Dibamidae or blind skinks is a family of lizards characterized by their elongated cylindrical body and an apparent lack of limbs. Female dibamids are entirely limbless and the males retain small flap-like hind limbs, which they use to grip their partner during mating. They have a rigidly fused skull, lack pterygoid teeth and external ears. Their eyes are greatly reduced, and covered with a scale.
The Taunton River, historically also called the Taunton Great River, is a river in southeastern Massachusetts in the United States. It arises from the confluence of the Town River and Matfield River, in the town of Bridgewater. From there it meanders through the towns of Halifax, Middleborough and Raynham, through the city of Taunton for which it is named, the towns of Berkley, Dighton, Somerset, and the Assonet section of Freetown, to Fall River where it joins Mount Hope Bay, an arm of Narragansett Bay.
Garter snake is the common name for small to medium-sized snakes belonging to the genus Thamnophis in the family Colubridae. Native to North and Central America, species in the genus Thamnophis can be found in all of the lower 48 United States, and nearly all of the Canadian provinces south of the Northwest Territories and Nunavut—with the exception of Prince Edward Island and Newfoundland and Labrador. They are found from the subarctic plains of west-central Canada east through Ontario and Quebec; from the Maritime Provinces and south to Florida, across the southern and central U.S. into the arid regions of the southwest and México, Guatemala and south to the neotropics and Costa Rica.
Blanding's turtle is a semi-aquatic turtle of the family Emydidae. This species is native to central and eastern parts of Canada and the United States. It is considered to be an endangered species throughout much of its range. Blanding's turtle is of interest in longevity research, as it shows few or no common signs of aging and is physically active and capable of reproduction into eight or nine decades of life.
U.S. states, districts, and territories have representative symbols that are recognized by their state legislatures, territorial legislatures, or tradition. Some, such as flags, seals, and birds have been created or chosen by all U.S. polities, while others, such as state crustaceans, state mushrooms, and state toys have been chosen by only a few.
Pseudemys is a genus of large, herbivorous, freshwater turtles of the eastern United States and adjacent northeast Mexico. They are often referred to as cooters, which stems from kuta, the word for turtle in the Bambara and Malinké languages, brought to America by enslaved people from Africa.
The eastern massasauga is a rattlesnake species found in central and eastern North America from southern Ontario in Canada and throughout the Midwestern and Eastern United States. Like all rattlesnakes, it is a pit viper and is venomous.
Thomas Barbour was an American herpetologist. He was the first president of the Dexter School in 1926. From 1927 until 1946, he was director of the Harvard Museum of Comparative Zoology (MCZ) founded in 1859 by Louis Agassiz at Harvard University in Cambridge, Massachusetts.
The timber rattlesnake, canebrake rattlesnake, or banded rattlesnake is a species of pit viper endemic to eastern North America. Like all other pit vipers, it is venomous, with a very toxic bite. C. horridus is the only rattlesnake species in most of the populous Northeastern United States and is second only to its relatives to the west, the prairie rattlesnake, as the most northerly distributed venomous snake in North America. No subspecies are currently recognized.
Samuel Walton Garman, or "Garmann" as he sometimes styled himself, was an American naturalist and zoologist. He became noted as an ichthyologist and herpetologist.
The Florida softshell turtle is a species of turtle in the family Trionychidae. The species is native to the Southeastern United States.
The northern red-bellied turtle or American red-bellied turtle is a species of turtle in the Pseudemys (cooter) genus of the family Emydidae.
Massasoit National Wildlife Refuge was established in 1983 to conserve the federally endangered Plymouth Red-bellied Turtle, as well as other wildlife and plant species. The Refuge encompasses 195 acres (0.79 km2) in Plymouth, Massachusetts. It is made up of two parcels; the Crooked Pond parcel abuts the Myles Standish State Forest, the second largest State forest in Massachusetts, and the smaller parcel is located on the shoreline of Island Pond. Massasoit National Wildlife Refuge is located within a 3,269-acre (13.23 km2) area designated as critical habitat for the Plymouth Red-bellied Turtle.
List of Reptiles native to the United States by state or territory:
