Gnathostomatidae Railliet, 1895
Echinocephalus crassostreai Cheng, 1975
Echinocephalus overstreeti Deardorff & Ko, 1983
Echinocephalus pseudouncinatus Millemann, 1951
Echinocephalus spinosissimus von Linstow, 1905
Echinocephalus uncinatus Molin, 1858
