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Pictures of amphibians and retpiles from our field trips

Amphibians

Hellbenders (Cryptobranchus alleghaniensis). Photo Mo Donnelly. This species belongs to the family Cryptobranchoidea, which contains the most primitive of the living salamanders. These fully aquatic salamanders inhabit cool shallow streams throughout the central and northeastern United States (Ozarks and Allegheny mountains). They can reach a length of 75 cm

Eurycea longicauda. Photo Mo Donnelly Picture taken in the Allegheny mountains, PA. This species was found living in small burrows in moist areas adjacent to a stream. Members of this genus belong to the largest family of Salamanders, Plethodontidae, the lungless salamanders.

The eastern newt, Notopthalamus viridescens. Photo Mo Donnelly. This is the juvenile (non-reproductive) phase of this species known as a red eft. Picture taken in West Virginia, in hemlock forest.

Phyllomedusa tomopterna. Photo Mo Donnelly This species is a member of the Hylidae family, subfamily Phyllomedusinae. Members of this group are mostly large, brightly colored frogs found in lowland rainforest and montane cloud forest from Central America to South America. This photo was taken in Iwokrama Reserve,Guiana. Reptiles

Sceloporus variabilis, family Phrynosomatidae. Photo Mo Donnelly. This genus also known as the fence lizards, is the largest genus of this family. Photo taken in Cabo Blanco, Costa Rica.

Ameiva undulata Photo Mo Donnelly. Belongs to the family Teiidae. These lizards are diurnal and inhabit various habitats. Males usually exhibit bright colors during the breeding season. Some populations are only female. Photo taken at Palo Verde National Park, Costa Rica.

Basiliscus plumifrons. Photo Mo Donnelly. These lizards belong to the family Corytophanidae. These are moderately large lizards that occur in forests from Mexico,Central America through to Ecuador. They have also been introduced to South Florida.

Corallus hortulanus, american tree boa. Photo Mo Donnelly. Belongs to the family Boidae. Members of this genus occur throughout Mexico, Central and South America. This photo was taken in Iwokrama Reserve, Guiana.

American crocodile, Crocodylus acutus. Family: Crocodylidae. This species occurs from Florida, West Indies through Central America. They are distinguished from Alligators by their narrow snout and exposed teeth