Pacific horned frog

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Pacific horned frog
Ceratophrys stolzmanni 2016 stamp of Ecuador 2.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Amphibia
Order: Anura
Family: Ceratophryidae
Genus: Ceratophrys
C. stolzmanni
Binomial name
Ceratophrys stolzmanni

The Pacific horned frog (Ceratophrys stolzmanni), also known as Pacific big-mouthed frog, Stolzmann's horned frog and Ecuadorian horned frog, is a species of frog in the Ceratophryidae family. It is found in Ecuador and Peru. Its natural habitats are subtropical or tropical dry forests, subtropical or tropical dry shrubland, and sandy shores. Its geographical range is very fragmented; it has a total area of about 20,000 km2 and is continuously shrinking due to human activities.[1]


Breeding is triggered by heavy rain fall and Pacific horned frogs reproduce explosively over the course of a single night. Typically, Pacific horned frogs lay underground during day and they are most active after sundown. Male frogs reproduce by approaching females both on land and shallow water and clasp on to the female, in a variation of axillary amplexus, in other word called "neck amplexus".[2]


  1. ^ a b Ariadne Angulo, Luis A. Coloma, Santiago Ron, Diego Cisneros-Heredia (2004). Ceratophrys stolzmanni. The IUCN Red List of Threatened Species doi:10.2305/IUCN.UK.2004.RLTS.T56341A11464974.en
  2. ^ Székely D, Székely P, Denoël M, Cogălniceanu D. Random size-assortative mating despite size-dependent fecundity in a Neotropical amphibian with explosive reproduction. Ethology. 2018;124:218–226.