Trichogenes claviger
Trichogenes claviger, also known as the Caetés catfish, is a critically endangered species of ray-finned fish belonging to the family Trichomycteridae, the pencil catfishes. This species is endemic to streams in the Atlantic Forest of Brazil. It was discovered early in 2010 and scientifically described later that year. One of three species within the genus Trichogenes, it is restricted to an area of 16 km2 (6.2 sq mi) in the Caetés forest, a mountainous area in the Brazilian state of Espírito Santo. When discovered, the rainforest in which it occurs was unprotected and threatened by deforestation. A private nature reserve has since been established, allowing visitors to see the fish in its habitat.