Larval trematodes. Part II. On two new cercariae fromIndoplanorbis exustus (Deshayes)
Two new cercariae namelyC. chinahatensis andC. chelawaensis have been described fromIndoplanorbis exustus. C. chinahatensis belongs to ‘Echinatoides’ group of echinostome cercariae and it differs from other cercariae of the same group in number and position of penetration glands, number of flame cells and number of collar spines. The other cercariaC. chelawaensls belongs to ‘Pigmentata’ group of amphistome cercariae and it differs from other cercariae of the pigmentata group in the presence of an oesophageal bulb, in the presence of a median diverticulum on the transverse connection of the excretory system and in the position and shape of the eye spots.