Cope's Frog, Leptodactylus hylaedactyla (Cope, 1868). The specimen in the photo was taken in southwest Trinidad. This species has also been placed in the genus Adenomera. Cope's Frog inhabits Amazonian forests from southeastern Colombia, Venezuela, and the Guianas southward into Brazil, Amazonian Ecuador, Peru, Bolivia, and northern Paraguay. It also occurs in southwestern Trinidad.

Whistling Frog, Leptodactylus fuscus (Schneider, 1799). Photographed in the northern basin of Trinidad. The whistling frog uses savannas and forest edge habitats from Panama southward to Brazil, Bolivia, and Argentina. Females attain at lest 50 mm. This frog is very abundant at some localities. Males excavate a nesting site, call from that nesting site and attract a female, the eggs are laid in a foam nest within the cavity. The tadpoles of this species feed on the eggs and embryos of other frogs.

Garman's Frog, Leptodactylus validus Garman, 1887. Specimen from the Guanapo Valley in Trinidad's Northern Range. It is a Trinidad endemic and has been introduced into the Lesser Antilles. Males reach 46 mm and females 51 mm. It inhabits forests and forest edge environments.