The genera Urodesmus and Monachodesmus are reviewed and shown to comprise four and 18 species, respectively, all keyed, including U. cornutus sp.n., M. longicaudatus sp.n. and M. armorum sp.n., all three from Cameroon. In addition, the West African genus Udodesmus is recorded in Cameroon for the first time, being represented there by U. camerunensis sp.n., which is unique among congeners in showing 5+5 undifferentiated lobulations at the anterior margin of the collum.