Maricola with an eversible penis papilla and an ejaculatory duct with sclerotic spines in its distal part. Two pairs of relatively large testicular follicles. Bursal canal bifurcates to form a narrow dorsal branch and a broad, obliquely running ventral branch, both branches opening into the atrium; the dorsal branch receives the separate openings of the oviducts. Copulatory bursa communicates with the intestine.
This genus contains only two species, Miroplana trifasciata Kato, 1931, and M. (?) spec.