Representatives of the Family Phocoenidae (porpoises). • (a) Lateral view of the skull and lower jaw of a phocoenid illustrating the raised rounded protuberances on the premaxillae (from Gervais 1855: 327) and spatulate-shaped teeth (from Flower and...

Representatives of the Family Phocoenidae (porpoises).

  • (a) Lateral view of the skull and lower jaw of a phocoenid illustrating the raised rounded protuberances on the premaxillae (from  Gervais  1855: 327)  and  spatulate-shaped  teeth  (from  Flower  and  Lydekker, 1891:p. 263).
  • (b) Right side of the body of spectacled porpoise, Phocoena dioptrica

(Illustrated by P. Folkens.)