LIST OP ILLUSTRATIONS 



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881. Hippocampus ... . . . . 223 



882. Plevironectes cynoglossus ... . 227 



883. Stomias boa ■ . . 228 



884. Ctenoid and ganoid scales ...... 228 



885. Polypterus, part of vei'tebral column . . . 229 



886. Sturgeon, skull .230 



887. Polypterus, skull .... ... .231 



888. „ pectoral fin 2.32 



889. „ pelvic fin ... 232 



890. Gymnotus electricus ... 233 



891. Sargus, teeth 234 



892. Anabas scandens . . 235 



893. Lepidosteus, digestive organs 236 



894. Pseudophycis bachus, relation of air-bladder to auditory organ . 237 



895. Lepidosteus, brain 238 



896. ,, male organs ... 239 



897. ,, and Amia, female organs 240 



898. ,, segmentation . 241 



899. Polypterus, head of larva . 242 



900. Glyptolepis and Macropoma ... . 243 



901. Palseoniscus and Platysomus .... ... 244 



902. Lepidotus and Caturus . . 245 



903. Ceratodus forsteri ... .... .247 



904. ,, ,, anterior portion of skeleton . 248 



905. ,, „ skull, dorsal .... . . 249 



906. ,, ,, ,, ventral. ... . . 249 



907. ,, ,, pelvic arch and fin . . . . . 250 



908. ,, „ lung .251 



909. ,, ,, heart and main blood-vessels . . 252 



910. „ „ brain . .253 



911. ,, ,, reproductive organs, female . . 255 



912. ,, ,, development . . 256 



913. Protopterus annectens 258 



914. ,, ,, skull, shoulder-girdle, and fore- limb . 259 



915. Coceosteus decipiens 260 



916. Pteraspis rostrata ... 261 



917. Lanarkia spinosa . 262 



918. Drepanaspis gemundenensis ... . . 262 



919. Cephalaspis . • 263 



920. Pterichthys testudinarius . . . . . 264 



921. Rana temporaria . 265 



922. ,, ,, skeleton . . . . . 267 



923. „ ,, skull .269 



924. ,, ,, ,, ofUdpole .... .271 



925. ,, esculenta, shoulder-girdle 272 



926. ,, ,, ,, ,, transverse section, diagrammatic 272 



927. ,, ,, pelvic-girdle ... ... 273 



928. ,, ',, muscles . 275 



