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Woodhouse's toad is a robust amphibian and can grow to a maximum snout-vent length of 127 mm (5 in). The head has prominent cranial crests in front of and in between the eyes. The parotoid glands are long and large. The dorsal surface of this toad is grayish-brown or yellowish-brown and it is speckled with small dark spots.
The largest living amphibian is the 1.8 m (5 ft 11 in) Chinese giant salamander (Andrias davidianus) [40] but this is a great deal smaller than the largest amphibian that ever existed—the extinct 9 m (30 ft) Prionosuchus, a crocodile-like temnospondyl dating to 270 million years ago from the middle Permian of Brazil. [41]
This is a checklist of amphibians found in Northern America, based mainly on publications by the Society for the Study of Amphibians and Reptiles. [1] [2] [3] The information about range and status of almost all of these species can be found also for example in the IUCN Red List of Threatened Species site. [4]
Amphibian common names (12 P) Amphibian diseases (1 P) Amphibian hormones (1 P) Amphibian redirects (5 C) Amphibians by year of formal description (4 C) C.
The Audubon Society Field Guide to North American Reptiles and Amphibians. New York: Alfred A. Knopf. 743 pp. ISBN 0-394-50824-6. (Osteopilus septentrionalis, pp. 410–411 + Plates 155, 178). Conant R. 1975. A Field Guide to Reptiles and Amphibians of Eastern and Central North America, Second Edition.
Amphibian Species of the World 6.2: An Online Reference (ASW) is a herpetology database. It lists the names of frogs, salamanders and other amphibians , which scientists first described each species and what year, and the animal's known range.
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Scientific name Common name Description Image Notes Ambystoma laterale: Blue-spotted salamander: Adults are 3.5 to 5.5 inches (8.9 to 14.0 cm) long and are colored black with turquoise or pale blue spots. Ambystoma maculatum: Spotted salamander: Adults are 4.3 to 9.8 inches (11 to 25 cm) long and are colored black or dark gray with round yellow ...