Crocodiles, 643. The Age of Reptiles, 644. Classification of
Reptiles, 646. Teeth of Reptiles, 646. Lower Jaw of Reptiles, 651.
Vertebræ, 651. Ribs, 656. Extremities, 657. Dermal Bones, 657.
Dermal Bones of Hylæosaurus, 659. Dermal Spines of Hylæosaurus,
661. Horn of Iguanodon, 661. Enaliosaurians, 662. Ichthyosaurus,
663. Paddle and Skin of Ichthyosaurus, 668. Plesiosaurus, 671.
Pliosaurus, 673. Crocodilians, 674. Swanage Crocodile, 677.
Pœcilopleuron, 679. Teleosaurus, 679. Streptospondylus, 680.
Cetiosaurus, 682. Polyptychodon, 683.