Psilostomatidae

Astacatrematula Macy & Bell, 1968

Gyrosoma Bryd, Bogitsh, Maples, 1961

Mesaulus Braun, 1902

Pseudopsilostoma Yamaguti, 1958

Psilochasmus Luhe, 1909

Psilostomum Looss, 1899

Psilotornus Byrd & Prestwood, 1969

Ribeiroia Travassos, 1939

Sphaeridiotrema Odhner, 1913