[2] The generic name Espadarana honors Marcos Jiménez de la Espada, a Spanish zoologist.

Moreover, the Spanish word espada means "sword", which can be associated with the humeral spines that adult male Espadarana have.

[1] The diagnostic characters of Espadarana include conspicuous humeral spines present in adult males, as hinted in their name.

Internal features include green bones (in live specimens), lobed liver covered by a transparent hepatic peritoneum, whereas the ventral parietal peritoneum is white in its anterior part and transparent in its poster part.

In terms of osteology, Espadarana possess vomerine teeth and quadratojugal bone that is articulating with maxilla.