Cathaemasiidae

Cathaemasiidae is a family of flatworms belonging to the order Plagiorchiida.

Genera:
 * Cathaemasia Looss, 1899
 * Cathaemasioides Teixeira de Freitas, 1941
 * Pulchrosoma Travassos, 1916
 * Reesella Mettrick, 1956