A marvelous new glassfrog has visible heart

A marvelous new glassfrog from Amazonian Ecuador, has visible heart.

Above, the new glassfrog species (Hyalinobatrachium yaku) in life. Credit Jaime Culebras and Ross Maynard

Hyalinobatrachium is a behaviorally and morphologically conserved genus of Neotropical anurans, with several pending taxonomic problems. Using morphology, vocalizations, and DNA, a new species from the Amazonian lowlands of Ecuador is described and illustrated.

All species in this genus have a completely transparent ventral peritoneum, which means that organs are fully visible in ventral view.