Author(s): M.M. El-Naggar
Article publication date: 1987-12-01
Vol. 5 No. 3 (yearly), pp. 441-454.
DOI:
118

Keywords

Proto Ancyl Discoides mansourensis , parasite, freshwater fish

Abstract

A description is given of Proto Ancyl Discoides mansourensis n. sp. a monogenean from the gills of Chrysichthys auratus Geoffroy 1809, inhabiting the Demietta Branch of the River Nile in Egypt. The Proto Ancyl Discoides Paperna 1969, is reported for the first time in Egypt. C. auratus is a new host record for the genus Proto Ancyl Discoides. Particular attention has been paid to the reproductive system, digestive system, anterior adhesive apparatus and haptoral sclerites. A funnel-like structure, through which muscles to the dorsal hamuli pass, has been discovered in P. mansourensis. Possible functions of some internal organs are discussed. The diagnosis of the genus Proto Ancyl Discoides is emended.