Remarks: Cercariae with four penetration gland-cells (two anterior and two lateral to the ventral sucker), 20
flame cells and absent eyespots have been described in the genus Hysteromorpha Lutz, 1931.
Excretory bladder V-shaped, containing granules of different shapes, only 3
flame cells visible.
The morphologic variations of plasma cells noted were
flame cells, multinuclearity, morula cells and Dutcher body (Table 1).