Typový druh
Crocodilichthys gracilis Allen & Robertson, 1991.
Původní popis
Allen G. R. & Robertson D. R. 1991. Description of two new genera and four new species of triplefins (Pisces: Tripterygiidae) from the tropical eastern Pacific. Rev. Fr. Aquariol. v. 18 (no. 3). 79-82.