Brown Egg Frog

About the Brown Egg Frog

Ctenophryne geayi (common name: brown egg frog, Spanish: sapito apuntado de Geay) is a species of frog in the family Microhylidae. It is widely distributed in the northern parts of South America, in the Guianas (Guyana, Suriname, French Guiana) and in the Amazon Basin in Venezuela, Colombia, Ecuador, Peru, Bolivia, and Brazil. It might actually represent two species.

Adult males measure 32–43 mm (1.3–1.7 in) and adult females 42–55 mm (1.7–2.2 in) in snout–vent length. The body is rotund, and the head is narrower than the body. The snout is blunt from above and rounded, slightly projecting in profile. The tympanic ring is barely visible externally. The fingers have rounded tips. The toes have flattened tips and webbing that is more extensive in males than in females.

Coloration is pale brown dorsally, with darker brown flanks and anterior and posterior surfaces of the thighs. The throat is dark grayish brown, and other ventral surfaces are dark brown with white flecks. A vertebral line might be present. There are two ventral color patterns.

Specimens from the northern and western part of the range have pale flecks or very small spots, no more than 1 mm (0.04 in)... Wikipedia →