| FIG. | | PAGE |
| 1 | Diagrammatic sections of various forms of teeth | 6 |
| 2 | Cervical vertebrae of an Ox (Bos taurus) | 15 |
| 3 | Diagram of the skeleton of Amphioxus lanceolatus | 51 |
| 4 | Dorsal, lateral, and ventral views of the skull of Petromyzon marinus | 56 |
| 5 | Skull of a male Chimaera monstrosa | 65 |
| 6 | Lateral view of the skull of a Dogfish (Scyllium canicula) | 75 |
| 7 | Semidorsal view of the pectoral girdle and fins of a Dogfish (Scyllium canicula) | 80 |
| 8 | Dorsal view of the pelvic girdle and fins of a male Dogfish (Scyllium canicula) | 81 |
| 9 | Dorsal and ventral views of the cranium of a Salmon (Salmo salar) from which most of the membrane bones have been removed | 88 |
| 10 | Lateral view of the chondrocranium of a Salmon (Salmo alar) | 90 |
| 11 | Lateral view of the skull of a Salmon (Salmo salar) | 92 |
| 12 | Mandibular and hyoid arches of a Cod (Gadus morrhua) | 99 |
| 13 | Right half of the pectoral girdle and right pectoral fin of a Cod (Gadus morrhua) | 102 |
| 14 | Diagram of a section through the jaw of a Shark (Odontaspis americanus) showing the succession of teeth | 107 |
| 15 | Part of the lower jaw of a Shark (Galeus) | 108 |
| 16 | Skulls of Notidanus and Cestracion | 118 |
| 17 | Dorsal view of the branchial arches of Heptanchus | 120 |
| 18 | Lateral view of the skull of a Sturgeon (Acipenser sturio) | 122 |
| 19 | Dorsal and ventral views of the cranium of Ceratodus miolepis | 125 |
| 20 | Lateral view of the skeleton of Ceratodus miolepis | 128 |
| 21 | Dorsal, ventral and lateral views of the skull of a Newt (Molge cristata) | 142 |
| 22 | Ventral and lateral views of the shoulder-girdle and sternum of an old male Crested Newt (Molge cristata) | 146 |
| 23 | Right posterior and anterior limbs of a Newt (Molge cristata) | 148 |
| 24 | Dorsal and ventral views of the cranium of a Common Frog (Rana temporaria) | 155 |
| 25 | Dorsal and ventral views of the cranium of a Common Frog (Rana temporaria) from which the membrane bones have mostly been removed | 157 |
| 26 | Lateral view of the skull and posterior view of the cranium of a Common Frog (Rana temporaria) | 159 |
| 27 | Dorsal view of the skull of a Labyrinthodont (Capitosaurus nasutus) | 176 |
| 28 | Ventral view of the cranium, and lateral view of the cranium and mandible of Siphonops annulatus | 178 |
| 29 | Visceral arches of Amphibia: A, Molge cristata; B, Rana temporaria, adult; C, Tadpole of Rana; D, Siredon pisciformis | 181 |
| 30 | Shoulder-girdle and sternum of an adult male Common Frog (Rana temporaria), and of an adult female Docidophryne gigantea | 183 |
| 31 | A, Right antibrachium and manus of a larval Salamander (Salamandra maculosa); B, Right tarsus and adjoining bones of Molge sp. | 186 |
| 32 | Lateral and dorsal views of the skull of an Ichthyosaurus | 19
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