SCUTOGYRUS GEN-N (MONOGENEA, ANCYROCEPHALIDAE) FOR CICHLIDOGYRUS LONGICORNIS MINUS DOSSOU, 1982, C-L-LORTGICORNIS, AND C-L-GRAVIVAGINUS PAPERNA AND THURSTON, 1969, WITH DESCRIPTION OF 3 NEW SPECIES PARASITIC ON AFRICAN CICHLIDS

Scutogyrus gen. n. (Monogenae: Ancyrocephalidae) is defined for Cichli dogyrus longicornis minus Dossou, 1982, on Sarotherodon melanotheron ( Cichlidae). This new genus is characterized by a dorsal transversal ba r enlarged laterally with, in its median portion, 2 very long auricles hollow at their base and by the ventral transversal bar arched, rigid , and supporting 1 large, thin, oval plate. In agreement with Douellou (1993), C. longicornis Paperna and Thurston, 1969, on Oreochromis nil oticus and C. gravivaginus Paperna and Thurston, 1969, on O. leucostic tus are considered valid; the new combinations Scutogyrus longicornis (Paperna and Thurston, 1969) and S. gravivaginus (Paperna and Thurston , 1969) are proposed for them. Three new species are also described: S cutogyrus bailloni sp. n. on Sarotherodon galilaeus, S. ecoutini sp. n . on S. occidentalis, and S. chikhii sp. n. on O. mossambicus. A key t o the species of Scutogyrus is given.