decussatus contained germinal
ball and immature redia. Redia (Fig. 2A) were sausage-shaped,
brownish thick wall. Each redia was filled with germinal balls
and developing cercariae. Redia contained birth pore, developing
cercaria, germinal ball, gut, and pharynx. Cercaria contained;
excretory canal, genital primordium, intestinal caeca,
tail, oral sucker, ventral sucker. The tails are unforked slender
shape with setae (24–27 pairs of setae arranged laterally along
the tail) (Fig. 2B and C).