a relict group. Alternatively, they might occur in the western Amazonas lowlands and simply have not been found yet, though this seems less likely. Behaviour The Tukeit Hill frog is semiarboreal, spending some times low in the trees, 1–3 m high, and some of the time on the ground. They are explosive breeders, taking advantage of small water ponds formed on the forest floor after periods of rain. This frog inhabits sparse forest, and may be restricted to forested areas, avoiding cleared land. References Austin, J. D.; Lougheed, S. C.; Tanner, K; Chek, A. A.; Bogart, J. P. & Boag, P. T. (2002): A molecular perspective on the evolutionary affinities of an enigmatic neotropical frog, Allophryne ruthveni. Zool. J. Linn. Soc. 134(3): 335–346. PDF fulltext Cogger, H. G.; Zweifel, R. G. & Kirschner, D. (2004): Encyclopedia of Reptiles & Amphibians (2nd edition). Fog City Press. Frost, Darrel R.; Grant, Taran; Faivovich, Julián; Bain, Raoul H.; Haas, Alexander; Haddad, Celio F. B.; De Sa, Rafael O.; Channing, A.; Wilkinson, Mark; Donnellan, Stephen C.; Raxworthy, Christopher J.; Campbell, Jonathan A.; Blotto, Boris L.; Moler, Paul; Drewes, Robert C.; Nussbaum, Ronald A.; Lynch, John D.; Green, David M. & Wheeler, Ward C. (2006): The Amphibian Tree of Life]. Bulletin of the American Museum of Natural History 297: 1-370. PDF fulltext InfoNatura (2005): Allophryne ruthveni Version 4.1, 28 June 2005. Retrieved 2007-JAN-06. Database entry includes a range map and a brief justification of why this species is of least concern Centrolenids Vertebrates of Guyana Amphibians of South America Amphibians described in 1926 Taxa named by Helen Beulah Thompson Gaige