Search results
Results from the WOW.Com Content Network
This is a list of amphibians of Pennsylvania as listed by the Pennsylvania Fish and Boat Commission. [1] Notes on ranges provided by Pennsylvania Amphibian & Reptile Survey . [ 2 ] Pennsylvania has 41 native species of amphibians, with 23 salamanders and newts, and 18 species of frogs and toads.
The mudpuppy jaw is considered metaautostyly, like most amphibians, meaning the jaw is more stable and that the salamander has a dentary. [15] This affects their diet by limiting the flexibility of the jaw to take in larger prey. The mudpuppy has few predators which may include fish, crayfish, turtles, and water snakes. Fishermen also ...
This is a list of reptiles of Pennsylvania as listed by the Pennsylvania Fish and Boat Commission. [1] As of 2024, there are 38 native reptiles in Pennsylvania. The species are listed as in the PFBC list, with the exception of introduced species, which are derived from other sources. Notes on ranges provided by Pennsylvania Amphibian & Reptile ...
The skin of salamanders, in common with other amphibians, is thin, permeable to water, serves as a respiratory membrane, and is well-supplied with glands. It has highly cornified outer layers, renewed periodically through a skin shedding process controlled by hormones from the pituitary and thyroid glands.
Reptiles, on the other hand, are shown only in list format in a chapter titled "Miscellaneous", where the other non-bird animals (and many non-animals) are listed. Shearer and Shearer consider the state reptiles to be part of a "last thirty years" phenomenon (written in 2003) that includes such particular items as a state's "official beverage ...
The Jefferson salamander (Ambystoma jeffersonianum) is a mole salamander native to the northeastern United States, southern and central Ontario, and southwestern Quebec. It was named after Jefferson College in Pennsylvania. [2] [3] It is typically dark gray, brown, or black on its dorsal surface, but a lighter shade on its anterior.
The mole salamanders (genus Ambystoma) are a group of advanced salamanders endemic to North America. The group has become famous due to the study of the axolotl (A. mexicanum) in research on paedomorphosis, and the tiger salamander (A. tigrinum, A. mavortium) which is often sold as a pet, and is the official amphibian of four US states.
The Audubon Society Field Guide to North American Reptiles and Amphibians. New York: Alfred A. Knopf. 743 pp. ISBN 0-394-50824-6. (Plethodon richmondi, pp. 346–347 + Plate 72). Netting, M. Graham, and M.B. Mittleman (1938). "Description of Plethodon richmondi, a new salamander from West Virginia and Ohio". Annals of the Carnegie Museum 27: ...