XIV 



LIST OF FIGURES 



FIG. PAGE 



122. Skeleton of lung-fish . . .119 

 122 A. Jaws and skull of Protop- 



terus 120 



123. Dipterus 121 



124. Derm bones of head of Dip- 



terus 121 



125. 125 A. Jaws of Dipterus . . 121 



126. Phaneropleuron . . . .122 



127. Ceratodus 123 



128. Skeleton of Ceratodus . .123 



1 28 A. Skull of Ceratodus . . .124 



129. Lepidosiren 125 



1 29 A. Protopterus 126 



130. Coccosteus 131 



131. Coccosteus, dorsal view . .132 



132. Coccosteus, ventral . . .132 



133. Dinichthys 133 



134-137. Dinichthys, dorsal view 134 

 138-144. Mandibles of Arthrodi- 



rans 137 



145. General anatomy of Teleost 140 



146. Skeleton of Teleost . . .142 



147. Skeleton of Ganoid . . . 144 



148. Polypterus 148 



149. Polypterus, head of young . 148 



150. Calamoichthys 150 



151. Gyroptychius 151 



152. Osteolepis 151 



153. Holoptychius 151 



154. Eusthenopteron .... 152 



155. Ccelacanthus 153 



156. Diplurus 154 



156A. Undina 154 



157. Lepidosteus 155 



158. Elonichthys 156 



159. Eurynotus 156 



160. Cheirodus 157 



161. Semionotus 157 



162. Aspidorhynchus . . . .158 



163. Microdon 158 



164. Palseoniscus 159 



165. Acipenser 160 



165 A. Chondrosteus .... 161 



166. Scaphirhynchus . . . .162 



FIG. PAGE 



166 A. Psephurus 162 



166 B. Polyodon 163 



167. Amia 163 



168. Amia, gular region . . . 164 



169. Caturus 164 



170. Leptolepis 165 



171. Megalurus 165 



171 A. Phylogeny of the Teleo- 



stomes 166 



172-174. Deep-sea fishes . .168 



175. Fierasfer 169 



176. Carassius 170 



177. Amiurus 171 



178. Callichthys 172 



179. Mormyrus . . . . . .172 



180. Anguilla 173 



181. Perca 173 



182. Gadus 174 



183. Pseudopleuronectes . . ' . 175 



184. Chilomycterus 176 



1 84 A. Lagocephalus . . . .176 



185. Hippocampus 177 



185 A. Syngnathus 178 



186-199. Eggs of fishes . . .181 

 200-215. Development of lam- 

 prey 189 



216-230. Development of shark . 194 

 231-248. Development of lung- 

 fish 199, 201 



249-268. Development of Ganoid 203 

 269-283. Development of Teleost 208 



284-289. Larval sharks 



290-295. Larval lung-fishes . 



296-302. Larval sturgeons . . 



303-309. Larval Teleosts . 



310-315. Skulls, jaws, and bran- 

 chial arches . . 



316-325. Heart and conus arte 

 riosus 



326-331. Digestive tracts . . 



332-337. Urinogenital ducts and 

 openings 



338. Blood-vessels of shark . 



339-344- Brain 



216 

 219 

 222 



224 



254 



258 

 262 



267 

 268 

 272 



