Aparasphenodon is a genus of frog
Frogs are amphibians in the order Anura , formerly referred to as Salientia . Most frogs are characterized by a short body, webbed digits , protruding eyes and the absence of a tail...

s in the Hylidae family, and are found southeastern Brazil
Brazil , officially the Federative Republic of Brazil , is the largest country in South America. It is the world's fifth largest country, both by geographical area and by population with over 192 million people...

, the Orinoco Basin
The Orinoco is one of the longest rivers in South America at . Its drainage basin, sometimes called the Orinoquia, covers , with 76.3% of it in Venezuela and the remainder in Colombia...

, Venezuela
Venezuela , officially called the Bolivarian Republic of Venezuela , is a tropical country on the northern coast of South America. It borders Colombia to the west, Guyana to the east, and Brazil to the south...

 and Colombia
Colombia, officially the Republic of Colombia , is a unitary constitutional republic comprising thirty-two departments. The country is located in northwestern South America, bordered to the east by Venezuela and Brazil; to the south by Ecuador and Peru; to the north by the Caribbean Sea; to the...

. These are tree-dwelling species usually hiding in the cisterns of epiphytic bromeliads. The top of the head carries a bony plate which is fused with the skin.


The genus is composed of three species:
Binomial Name and Author Common Name
Aparasphenodon bokermanni Bokermann's Casque-headed Frog
Aparasphenodon brunoi Bruno's Casque-headed Frog
Aparasphenodon venezolanus Venezuela Casque-headed Frog

External links

. 2007. Amphibian Species of the World: an Online Reference. Version 5.1 (10 October, 2007). Aparasphenodon. Electronic Database accessible at http://research.amnh.org/herpetology/amphibia/index.php. American Museum of Natural History, New York, USA. (Accessed: Apr 24, 2008). [web application]. 2008. Berkeley, California: Aparasphenodon. AmphibiaWeb, available at http://amphibiaweb.org/. (Accessed: Apr 24, 2008). taxon Aparasphenodon at http://www.eol.org. Taxon Aparasphenodon at http://www.itis.gov/index.html. (Accessed: Apr 24, 2008). Taxon Aparasphenodon at http://data.gbif.org/welcome.htm

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