© 2008 Arne Schiotz (1 of 2)
Two characteristic elements of the West African bushland fauna, Hyperolius concolor and H. picturatus, are strangely absent from the western half of Sierra Leone, although suitable habitats seems plentiful. Instead H. occidentalis is found, similar to both species. In morphology it is most similar to H. picturatus but has a different voice, a double or triple click, and a constant pattern. H. occidentalis differs from H. concolor in being smaller, with a shorter snout, smaller gular flap and a different pattern and voice. It is tempting to regard H. occidentalis as a western subspecies of H. picturatus. It is not done here since H. picturatus may be a composite of two cryptic species.
Captive-reared tadpoles did not develop normally but they seem to have the usual tooth formula of 1/1+1,2.
Distribution and Habitat
Country distribution from AmphibiaWeb's database: Gambia, Guinea, Senegal, Sierra Leone
Life History, Abundance, Activity, and Special Behaviors
Eggs have a small black pole and a large white pole. The jelly is clear.
Schiøtz, A. (1999). Treefrogs of Africa. Edition Chimaira, Frankfurt am Main.
Written by Arne Schiøtz (arne AT schiotz.dk), *
First submitted 2001-01-09
Edited by Kellie Whittaker (2008-09-10)
Species Account Citation: AmphibiaWeb 2008 Hyperolius occidentalis <http://amphibiaweb.org/species/558> University of California, Berkeley, CA, USA. Accessed May 29, 2020.
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Citation: AmphibiaWeb. 2020. <http://amphibiaweb.org> University of California, Berkeley, CA, USA. Accessed 29 May 2020.
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