Třída: Chondrichthyes - paryby
Řád: Carcharhiniformes - žralouni
Čeleď: Scyliorhinidae - máčkovití

Reference: Garman, S. 1881. Report on the selachians. Reports on the results of dredging, ... along the Atlantic coast of the United States during the summer of 1880, by the U. S. Coast Survey Steamer "Blake," Commander J. R. Bartlett, U. S. N., commanding. XII. Bull. Mus. Comp. Zool. v. 8 (no. 11): 231-237.