. . "Squaliformes" . . . "Animalia" . "Chordata" . . . . . . . . . "Linnaeus 1758" . "Squalus" . . . . . "Spiny Dogfish Shark" . "Squalus acanthias Linnaeus 1758" . "Chondrichthyes" . "Squalidae" . . . . . . "Squalus acanthias" .