ABSTRACT
Four species of parasitic Crustacea, collected from various inland water fishes of Israel, are described: Pseudolepeophtheirus mediterraneas n.sp. from the gills of Mugil capito Ergasilus fryeri n.sp. from the gills of mullets, cichlids and the common eel; Lamproglena jordani n.sp. from gills of cyprinid fishes; Argulus tristramellae n.sp. from the gill cavity of Tristramella simonis.
A description of the free swimming and the parasitic stages of Lamproglena jordani copepodites is given.