In this study 200 marine fish samples, Morone labrax were collected from Suez Canal area and investigated for presence of Caligid parasites, in the period from January 2014 to December 2014. The study revealed that 80 out of 200 (40%) were infested with a different Caligus species (C. minimus,C.longipedis and C. lagocephali). In respect to its incidence, it showed that Caligus species present all over the year, spring represent season of high prevalence while winter is the season of low prevalence. Morone labrax represent new host record for Caligus lagocephali with a percent of 1% infestion from total examined fish (2 out of 200), C.lagocephali females only were obtained .It characterized by its creamy color, wide angle between frontal plates, well developed processes located proximally on the inner margin of the female maxilliped, sternal furca with tapering tines and the genital complex nearly 1.50 time longer than abdomen and has no distinct postero-lateral lobes. Genital complex and abdomen combined about two times longer than cephalothorax. Outer margin of the second endopodal segment of second leg densely ornamented with fine spinules.