The parasite measurements were made using ImageProPlus®4.1 software. Schematic drawings of the denticles,as proposed by Van As and Basson (1989), were producedby means of vectorization using CorelDraw®X5 software.During a 1 year period, eight samples were collected ina facility situated in southeastern Brazil (20◦16_39.8__S;51◦03_38.2__W).