Credit: A. MONRO/NHM

This salamander is one of three new species recently found in Costa Rica.

At 8 centimetres, the as-yet-unnamed member of the genus Bolitoglossa is the largest of those found in La Amistad National Park near the southern border with Panama, the biggest forest reserve in Central America. A second Bolitoglossa species 6 centimetres long was also found, along with a 3-centimetre example of the Nototriton genus of dwarf salamanders.

Expeditions led by Alex Monro, a biodiversity expert at the Natural History Museum in London, discovered the amphibians. Researchers at the University of Costa Rica in San Pedro will describe and name the species.