FIGURE 4 in Taxonomy and morphology of species of the genus Squalus Linnaeus, 1758 from the Southwestern Atlantic Ocean (Chondrichthyes: Squaliformes: Squalidae)

FIGURE 4. Upper (A, C) and lower (B, D) teeth of Squalus acanthias in labial view. (A, B) ZMH 104416, adult male, 725 mm TL; (B, D) HUMZ 30178, adult male, 693 mm TL. Scale bar: 1 mm.