AMPHIBIAWEB
Hyperolius thomensis
Sao Tome Giant Treefrog
family: Hyperoliidae

© 2003 Robert C. Drewes (1 of 2)
Conservation Status (definitions)
IUCN (Red List) Status Endangered (EN)
CITES No CITES Listing
Other International Status None
National Status None
Regional Status None

 

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Description
A large tree frog (males 27-41 mm, females 36-49 mm) endemic to São Tomé Island. Dorsum uniform brown, or green to blue-green, ventrum marbled in white, orange and black, ventral surfaces of limbs richly marbled in orange and black. Dorsum of males densely beset with small spines. Pupil horizontal.

Distribution and Habitat

Country distribution from AmphibiaWeb's database: Sao Tome and Principe

 

View distribution map using BerkeleyMapper.
Endemic to São Tomé Island. Known with certainty only from vicinity of Pousada Boa Vista, Macambrara and Bom Successo. Probably restricted to remaining original forest above 800m.

Life History, Abundance, Activity, and Special Behaviors
Recent data (Drewes and Stoelting 2004) suggest that H. thomensis breeds in phytotelmata. Eggs are large (Ø 2-2.5 mm) and deposited in masses of 20-40 in number.

Comments
Hyperolius thomensis is an island giant; it is the largest member of the genus Hyperolius.

References

Drewes, R. and Wilkinson, J. (2004). ''The California Academy of Sciences Gulf of Guinea expedition I: The taxonomic status of the genus Nesionixalus with comments on the genus Hyperolius.'' Proceedings of the California Academy of Sciences, 55(20), 395-407.

Drewes, R., and Stoelting, R. E. (2004). ''The California Academy of Sciences Gulf of Guinea expedition (2001) II. Additions and corrections to our knowledge of the endemic amphibians of São Tomé́ and Príncipe.'' Proceedings of the California Academy of Sciences, 55, 573-587.

Schiøtz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.



Written by Robert C. Drewes (rdrewes AT calacademy.org), California Academy of Sciences
First submitted 2001-02-12
Edited by Kellie Whittaker (2008-09-30)

Species Account Citation: AmphibiaWeb 2008 Hyperolius thomensis: Sao Tome Giant Treefrog <http://amphibiaweb.org/species/611> University of California, Berkeley, CA, USA. Accessed Oct 18, 2017.



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Citation: AmphibiaWeb. 2017. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 18 Oct 2017.

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