Torrent salamander

Rhyacotriton variegatus

Rhyacotriton is an amphibian genus of the order Caudata, and the only genus of the family Rhyacotritonidae.

Description

Rhyacotriton species are relatively small salamander with body lengths of less than 10 cm, relatively short tails and small heads with eye-catching big eyes. Your coloring is brown on top, sometimes gray marbled, on the ventral side yellow -orange, sometimes dotted black. The fuselage is laterally segmented by 14 to 15 ribs clearly visible furrows. Rhyacotriton species possess an annular otoglossalen cartilage. There is no second Epibranchiale available. The lungs have been reduced for the most part. The 4 or 5 toes are not connected by webbing. The columella, a ossicles, is broad and plate-like spread and not adherent to the walls of the otic capsule. The dorsal fin of the larvae has no pleat.

Occurrence

The genus is in the northwest of the United States, in the west of Washington, Oregon and coastal, northwestern California and lived there before the moist coniferous forests in the Cascade Range with oxygen-rich springs and streams.

System

The genus was first described in 1920 by Rhyacotriton Emmett Reid Dunn. In 1958, YES Tihen it into its own family Rhyacotritonidae. It includes four types:

  • Rhyacotriton cascadae Good and Wake, 1992
  • Rhyacotriton kezeri Good and Wake, 1992
  • Rhyacotriton olympicus ( Gaige, 1917)

Swell

  • Darrel R. Frost: Rhyacotriton. In: Amphibian Species of the World: an Online Reference. Version 5.6 (January 9, 2013). American Museum of Natural History, New York, USA. online
  • Larson, Allan. In 1996. Rhyacotritonidae. Torrent salamander. Version 01 January 1996 The Tree of Life Web Project
Lissamphibia Salamandroidea Cryptobranchoidea Interdigital webbing Washington (state)
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