Centrolenidae

12 genera 153 species Distribution — Venezuela, Bolivia, Argentina, and southern Brazil in mountain streams. This family received its common name due to the transparency of the abdominal cavity.

This feature is found in nearly all species of the family. Hyalinobatrachium fleischmanni Most centrolenids have green dorsal coloration.

Due to metabolic specifics, in some of them the bones are green. They possess a unique pigment capable of reflecting at the same wavelength as the green plants growing around them. This is considered a fundamentally different camouflage mechanism. Centrolene altitudinale Reproduction. They lay eggs on rocks or plants hanging over water.

Egg-laying territories are periodically guarded by males. After hatching, tadpoles fall into the water and then burrow into the sand; they are detritivores. Morphology. 20–70 mm in length.

T-shaped limb terminations (a convergent trait relative to other groups). Palatine bones. The ventral surface and sometimes the gastrointestinal tract are transparent. The astragalus and calcaneum are completely fused.

Centrolene geckoideum Sources: 1. https://amphibiaweb.org 2.https://research.amnh.org/