Henochilus wheatlandii is a species of characin endemic to Brazil where native to the Mucuri and Doce River basins. It is a Critically Endangered species, and now restricted to the Santo Antônio River, a tributary of the Doce River. It is the only species in the genus Henochilus. It is a critically endangered species, and had been considered extinct for more than a century, until rediscovered in 1996. This species is known to feed on plants. It can reach up to in standard length. The fish is named in honor of Henry Wheatland (1812-1893), who was President of the Essex Institute in Salem, Mass., USA, which published the description of the fish. References Characidae Monotypic ray-finned fish genera Characiformes genera Fish of South America Fish of Brazil Endemic fauna of Brazil Taxa named by Samuel Garman Fish described in 1890