Amphibians beginning with W

Wager's Stream Frog - The Wager's Stream Frog is a species of frog in the Ranidae family. It is found in South Africa, possibly Lesotho, and possibly Swaziland. Its natural habitats are temperate forests, temperate grassland, and rivers. It is threatened by habitat loss.

Wallace's flying frog - R. dennysii, R. maximus and Polypedates feae were once contained within Wallace's Fyling Frog as subspecies. Similar frogs also occur in Laos, Vietnam and southern China; these may be R. nigropalmatus or an undescribed closely related species.

Wandering Salamander - The Wandering Salamander lives its whole life in a Giant Redwood. It may spend its whole life in one tree, never having walked the ground beneath the tree. The Wandering Salamander has no lungs or gills, and breathes through its skin. For this reason it must keep its skin wet all the time.

Wanggao warty newt - The Wanggao Warty Newt is a species of salamander in the Salamandridae family. It is found only in China. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical seasonally wet or flooded lowland grassland, and rivers. It is threatened by habitat loss.

Warty coqui - The Locust Coqui or Coqui Martillito is a species of frog in the Leptodactylidae family. It is endemic to Puerto Rico. Its natural habitats are subtropical or tropical moist lowland forests and subtropical or tropical moist montanes.

Water Frog, Wood Frog - The Australian Wood Frog , locally simply known as "the" Wood Frog, is the only species from the family Ranidae that occurs in Australia. The species is restricted to the rainforest of northern Queensland, the eastern border of Arnhem Land, in the Northern Territory and much of New Guinea. Long placed in the "wastebin genus" Rana, it is now in Hylarana together with such species as the Common Green Frog of Southeast Asia.

Water-holding Frog - The species has populations spread across all the Australian states except Victoria and Tasmania. It occupies a wide range of habitat from forests of tropical swamp to intermittent pools and lowland grass country; all habitat is assumed to be of a low elevation. Populations are assumed to be large from frequent reports and a broad range. This range is assumed to overlap with National parks, but research has not been undertaken into the ecology and biology of the species. The water holding frog is known to lay its eggs and once hatched go back into aestivation for a period of 3 - 6 months. After this period it will lay more eggs and repeat the process

Webster's Salamander - Its natural habitat is temperate forests. It is threatened by habitat loss.

Wehrle's Salamander - Wehrle’s salamander ranges from New York south to North Carolina and Tennessee. It is possibly extirpated in Ohio.

Weidholz's Banana Frog - Afrixalus weidholzi is a species of frog in the Hyperoliidae family. It is found in Benin, Cameroon, Republic of the Congo, Democratic Republic of the Congo, Ivory Coast, Gambia, Ghana, Mali, Nigeria, Senegal, Sierra Leone, possibly Burkina Faso, possibly Central African Republic, possibly Chad, possibly Guinea, possibly Guinea-Bissau, possibly Liberia, possibly Sudan, and possibly Togo. Its natural habitats are dry savanna, moist savanna, intermittent freshwater marshes, pastureland, rural gardens, ponds, and canals and ditches. It is threatened by habitat loss.

Weigel’s toad - The Weigel's Toad is a species of frog in the Limnodynastidae family. It is endemic to Australia. Its natural habitats are subtropical or tropical dry shrubland, subtropical or tropical dry lowland grassland, intermittent freshwater marshes, and rocky areas.

Weller's Salamander - Its natural habitats are temperate forests and rocky areas. It is threatened by habitat loss.

Wenxian knobby newt - The Wenxian Knobby Newt is a species of salamander in the Salamandridae family. It is found only in China. Its natural habitats are temperate forests, freshwater marshes, intermittent freshwater marches, and ponds. It is threatened by habitat loss.

West virginia spring salamander - Its natural habitats are inland karsts and caves. It is threatened by habitat loss.

Western Dwarf Clawed Frog - Ken Livingstone was the first ever person to breed Hymenochirus curtipes in captivity.

Western Leopard Toad - The Western Leopard Toad is a species of toad in the Bufonidae family. It is endemic to South Africa. Its natural habitats are Mediterranean-type shrubby vegetation, swamps, freshwater lakes, intermittent freshwater lakes, freshwater marshes, intermittent freshwater marshes, arable land, pastureland, urban areas, and ponds. It is threatened by habitat loss.

Western narrow-mouthed toad - The Great Plains Narrowmouth Toad is a species of microhylid frog. They are found throughout much of the south central United States from the state of Nebraska south through Texas, and into northern Mexico. Though not a true toad, they are often referred to as toads, because they are terrestrial.

Western Nimba toad - IUCN

Western Slimy Salamander - The Western Slimy Salamander is a species of salamander found in two disjunct populations in the United States, one from Missouri to Oklahoma, and Arkansas, and another in south-central Texas. It is sometimes referred to as the Whitethroat Slimy Salamander, because it was once considered to be a subspecies of the Northern Slimy Salamander, Plethodon glutinosus.

Western Spadefoot - Pelobates cultripes is a big smooth-skinned toad with a silvery gold or greenish eye and a vertical pupil. It has a black spade on the hind foot, hence its name. The edged callus internus of the hind foot is converted to allow digging. The upperside is greyish-yellowish with dark brown or greenish blotches and spots. It grows up to 11 cm and is larger and greener than the Common Spadefoot. The tadpoles are larger than those of most other toad species.

Western spadefoot - The Plains Spadefoot Toad generally grows from 1.5 to 2.5 inches in length, has a round body, with relatively short legs. They vary in color from greys to browns, usually reflecting the color of the soil in their native habitat, with a white underside. Sometimes they have light striping on their back.

Western spadefoot - Juveniles western spadefoot toads look similar to adults, but have more distinct spotting.

Whistling frog - The Whistling Coquí is a species of frog native to Puerto Rico, the US.

Whistling frog - Leptodactylus wagneri is a species of frog in the Leptodactylidae family. It is found in Brazil, Colombia, Ecuador, and Peru. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montanes, subtropical or tropical dry lowland grassland, subtropical or tropical seasonally wet or flooded lowland grassland, rivers, swamps, freshwater lakes, freshwater marshes, intermittent freshwater marches, arable land, pastureland, rural gardens, and heavily degraded former forest.

Whistling rain frog - The Whistling Rain Frog is a species of frog in the Microhylidae family. It is found in South Africa, Swaziland, and possibly Mozambique. Its natural habitats are temperate forests, dry savanna, moist savanna, and sandy shores. It is threatened by habitat loss.

White-bellied frog - G. alba is very similar in appearance to Geocrinia vitellina ; having spots of dark brown on a light brown or grey back and a snout-vent length of 17–24 mm. The underparts, however, are white. It is part of the Geocrinia rosea frog complex.

White-lipped Frog - It is found in Argentina, Bolivia, Brazil, Paraguay, and Uruguay. Its natural habitats are subtropical or tropical moist lowland forests, moist savanna, subtropical or tropical dry shrubland, subtropical or tropical moist shrubland, subtropical or tropical high-altitude shrubland, temperate grassland, subtropical or tropical dry lowland grassland, subtropical or tropical seasonally wet or flooded lowland grassland, freshwater lakes, intermittent freshwater lakes, pastureland, rural gardens, heavily degraded former forest, and ponds. It is not considered threatened by the IUCN.

White-snouted reed frog - Hyperolius frontalis is a species of frog in the Hyperoliidae family. It is found in Democratic Republic of the Congo and Uganda. Its natural habitats are subtropical or tropical moist lowland forests, subtropical or tropical moist montanes, rivers, swamps, and heavily degraded former forest. It is threatened by habitat loss.

White-spotted Salamander - Its natural habitats are temperate forests and rocky areas. It is threatened by habitat loss.

White-spotted Slimy Salamander - Its natural habitat is temperate forests. It is threatened by habitat loss.

WIDE MOUTH TOAD - Calyptocephalella gayi or the Helmeted Water Toad is a the sole species of the genus Calyptocephalella in the family Calyptocephalellidae. It is found in Chile and possibly Argentina. Its natural habitats are rivers and freshwater marshes. It is threatened by habitat loss.

Wood Frog - Similar to other northern frogs that hibernate close to the surface in soil and/or leaf litter, wood frogs can tolerate the freezing of their blood and other tissues. Urea is accumulated in tissues in preparation for overwintering, and liver glycogen is converted in large quantities to glucose in response to internal ice formation. Both urea and glucose act as "cryoprotectants" to limit the amount of ice that forms and to reduce osmotic shrinkage of cells. Frogs can survive many freeze/thaw events during winter if not more than about 65% of the total body water freezes.

Woodhouse's Toad - The Woodhouse's Toad, is a medium-sized true toad, which is native to the United States and Mexico. There are two recognized subspecies. The epithet woodhousii is in honor of the American physician and naturalist Samuel Washington Woodhouse. B. woodhousii tends to hybridize with Bufo americanus in their overlapping ranges.

Woodworker Frog - The Woodworker Frog is a species of frog in the Limnodynastidae family. It is endemic to Australia. Its natural habitats are subtropical or tropical dry shrubland, subtropical or tropical dry lowland grassland, rivers, intermittent rivers, rocky areas, and caves.

Wotjulum Frog - Litoria watjulumensis, the Wotjulum Frog, is a species of frog in the Hylidae family.

Wrinkled Toadlet - The Wrinkled Toadlet is a small frog, which varies largely in size. It is smaller on the coast of eastern Australia, and larger inland, ranging from 1.8 to 3.2 centimetres . The dorsal surface is warty, and grey to brown, with dark markings. The ventral surface is smooth and grey. The parotoid glands and inguinal glands are large in comparison to the size of the frog, and yellowish in colour. Behind each knee, and in the groin are bright orange.

Wuliangshan horned toad - Xenophrys wuliangshanensis is a species of toad found in Asia. It has been found in Yunnan province in China and the state of Nagaland in India and it is thought to occur in the Union of Myanmar , although there are no records from there as yet.

Wyoming Toad - The Wyoming Toad is an extremely rare amphibian that exists only in captivity and within Mortenson Lake National Wildlife Refuge in the US.