Monday, January 2, 2017

Adenomera sp. (Family Leptodactylidae)

The Trinidad Adenomera are undescribed (see Fouquet et al. 2014). There appears to be at least two species on the island. Until now they have been considered Adenomera hylaedactyla. Males 22-24 mm, females 26-27 mm. The dorsal coloration consists of scattered dark markings on a brown background. There are two well-defined glandular dorsolateral folds on each side of the body. The distance from the eye to the snout is about one and a half times the diameter of the eye. The belly and throat are white. The lower and front surfaces of the thighs are yellowish. The iris is bronze. The species is terrestrial, active by day and night (mostly at night), and usually found in open areas and edges of forests. Reproduction occurs throughout the year, with a peak in the rainy season. The males call from the ground, hidden among leaves and fallen branches. Males excavate small burrows in the soil, in which the female deposits about 15 eggs in a foam nest. The tadpoles develop in the nest, living exclusively on the yolk provided in the eggs. These frogs have also been placed in the genus Leptodactylus.

Fouquet, A., Santana Cassini, C., Fernando Baptista Haddad, C., Pech, N., & Trefaut Rodrigues, M. (2014). Species delimitation, patterns of diversification and historical biogeography of the Neotropical frog genus Adenomera (Anura, Leptodactylidae). Journal of Biogeography, 41(5), 855-870.

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