This species ranges from eastern Nigeria to the Mayombe region of extreme western Democratic Republic of Congo. There are records from southwestern and southern Cameroon, mainland Equatorial Guinea, Gabon and Congo. It is assumed to occur in southwestern Central African Republic and the Cabinda Enclave of Angola, but it has not been confirmed from these countries. It occurs on the island of Bioko (Equatorial Guinea). It occurs at low elevations, probably up to over 1,000m asl.
Habitat and Ecology
It lives in or near fast-flowing, clear-water rivers and streams at low altitudes in rainforest. It can survive in somewhat degraded forest, providing that trees remain and that it is not open farm bush. The males call close to water. It breeds in running water where the flow is not too fast or torrential. The young spend the day on gravel and sand at the side of streams and rivers. Around Nkongsamba in western Cameroon, Conraua crassipes, C. goliath and C. robusta occur sympatrically.
It is a common species.
It is adversely affected by the loss of forest habitat for agriculture, logging and human settlements, and well as by sedimentation of its breeding streams.
It occurs in several protected areas, including Korup National Park (Cameroon), Monte Alen National Park (Equatorial Guinea), and Lope-Okanda Faunal Reserve (Gabon).
Jean-Louis Amiet, Marius Burger, Malcolm Largen 2004. Conraua crassipes. In: IUCN 2014