Heptapteridae Gill, 1861
Chasmocranus brachynemus Gomes & Schubart, 1958
Chasmocranus brevior Eigenmann, 1912
Chasmocranus chimantanus Inger, 1956
Chasmocranus longior Eigenmann, 1912
Chasmocranus lopezi Miranda Ribeiro, 1968
Chasmocranus peruanus Eigenmann & Pearson, 1942
Chasmocranus quadrizonatus Pearson, 1937
Chasmocranus rosae Eigenmann, 1922
Chasmocranus surinamensis (Bleeker, 1862)
Chasmocranus truncatorostris Borodin, 1927