Trigonocidaridae Mortensen, 1903b
Prionechinus agassizi Wood-Mason & Alcock, 1891
Prionechinus forbesianus (A. Agassiz, 1881)
Prionechinus sagittiger A. Agassiz, 1879
Prionechinus sculptus A. Agassiz & H.L. Clark, 1907
