Unknown Origin
Checklist of Endemic Amphibian Species
This list of amphibian species known only by their type specimens of unknown origin is based on the taxonomy used in Frost (2004). For further details on possible inaccuracies in the list see Sources & Caveats.
Frost, D.R. (2004) Amphibian Species of the World: an Online Reference. 3.0 (22 August 2004). American Museum of Natural History, New York, USA.
The current version of this electronic database is accessible here
Bufo intermedius (Anura - Bufonidae) Gunther's Tropical Toad
Bufo simus (Anura - Bufonidae)
Dendrobates labialis (Anura - Dendrobatidae) Nauta Poison Frog
Hyla albovittata (Anura - Hylidae)
Hyla molitor (Anura - Hylidae)
Litoria javana (Anura - Hylidae)
Sphaenorhynchus platycephalus (Anura - Hylidae)
Hyperolius thoracotuberculatus (Anura - Hyperoliidae) Warty Reed Frog
Zachaenus roseus (Anura - Leptodactylidae)
Fejervarya brama (Anura - Ranidae) Bengal Wart Frog
Fejervarya schlueteri (Anura - Ranidae) Schlueter's Wart Frog
Hynobius turkestanicus (Caudata - Hynobiidae) Turkestanian Salamander
Caecilia armata (Gymnophiona - Caeciliidae) Armored Caecilian
Caecilia mertensi (Gymnophiona - Caeciliidae) Mertens' Caecilian
Ichthyophis humphreyi (Gymnophiona - Ichthyophiidae) Humphrey's Caecilian
Additional endemic amphibian species that were recognized as distinct species too recently to be included in Frost (2004) are given below. This list is primarily based on information from the IUCN Red List (here) and the current version of the Amphibian Species of the World database (here) and includes species described through 2008. In addition to the 15 endemic amphibian species listed above, the additional 3 species listed below gives a total of 18 species of amphibians of unknown origin.
Hyperolius raveni (Anura - Hyperoliidae) Volcano Reed Frog 1931
Hylambates dorsalis (Anura - Rhacophoridae) 1875