Trachycephalus quadrangulum

Trachycephalus quadrangulum, the Chocoan milk frog, is a species of frog in the family Hylidae. It is endemic to the Pacific slopes of the Andes in Ecuador and Peru. Scientists have seen it between 20 and 350 meters above sea level.^[1][2]

Trachycephalus quadrangulum
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Anura
Family:	Hylidae
Genus:	Trachycephalus
Species:	T. quadrangulum
Binomial name
Trachycephalus quadrangulum (Boulenger, 1882)
Synonyms[1]
Hyla quadrangulum Boulenger, 1882

The adult male frog measures 53.4 to 76.9 mm in snout-vent length and the adult female frog 60.5 to 80.8 mm. The adult frog is brown or gray in color with a four-sided darker gray mark on its back. Its head is wider than it is long.^[2]

References

1. "Trachycephalus quadrangulum (Boulenger, 1882)". Amphibian Species of the World 6.0, an Online Reference. American Museum of Natural History. Retrieved March 3, 2022.
2. Andrea Varela-Jaramillo (March 3, 2018). Santiago R. Ron (ed.). "Trachycephalus quadrangulum" (in Spanish). Amphibiaweb. Retrieved March 1, 2022.