Morphology of New Eleven Cercariae Procured from Melanoides Tuberculata Snails in Egypt

Morphological description of eleven types of cercariae procured from the freshwater prosobranch snail Melanoides tuberculata is given here for the first time. These cercariae belong to four main type groups namely xiphidiocercariae (2), furcocercous cercariae (2), pleurolophocercous (4) and gymnocephalous cercariae (3). They were obtained during parasitological investigation of thousands of snails (13,840) collected during various seasons of the year from the Nile and irrigation system in several localities of Egypt. The procured cercariae were examined alive, stained and fixed. They were traced by camera lucida and photos were given to support this description