Euchilichthys royauxi is a species of upside-down catfish native to the Congo Basin of Angola, Cameroon, the Democratic Republic of the Congo and Zambia. This species grows to a length of TL. Euchilichthys royauxi was named by George Albert Boulenger in 1902 from specimens taken in the Ubangi, its specific name royauxi is in honor of the Belgian officer Louis Joseph Royaux who led the expedition that collected the type specimen. References Mochokidae Catfish of Africa Fish of Angola Freshwater fish of Cameroon Fish of the Democratic Republic of the Congo Fish of Zambia Fish described in 1902