Hypleurochilus langi is a species of combtooth blenny found in the eastern Atlantic ocean, from Senegal to the mouth of the Congo River. This species grows to a length of SL. This blenny is euryhaline and it enters mouths of large rivers and occurs among mangroves, it prefers brackish water. The specific name of this blenny honours the German zoologist and taxidermist Herbert Lang (1879-1957) of the American Museum of Natural History, who helped to collect the type. References langi Marine fauna of Central Africa Marine fauna of West Africa Fish described in 1923