pilkasis septynžiaunis ryklys
Sharpnose sevengill shark
Heptranchias angio Costa, 1857
Heptranchias cinereus (Gmelin, 1789)
Heptranchias dakini Whitley, 1931
Heptranchias deani Jordan & Starks, 1901
Heptranchus perlo (Bonnaterre, 1788)
Heptrancus angio Costa, 1857
Notidanus cinereus (Gmelin, 1789)
Notidanus cinereus pristiurus Bellotti, 1878
Squalus cinereus Gmelin, 1789
Squalus perlo Bonnaterre, 1788