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Procerovum varium adult (Semichon's acetocarmine stained and a drawing) recovered from the small intestine of a cat. Body small, 435×235 µm in average size, and having a muscular oral sucker (OS), a pharynx (P), a small ventral sucker with a long and thick-walled expulsor (E), a spherical ovary (O), single globular testis (T), and follicular vitellaria distributed in the post-ovarian fields.
