LIST OF PLATES 



Angel-fish {Pterophyllum eimekei) ..... Frontispiece 



NUMBER OF PLATE To face page 



I. Scales of the Salmon (vSa/mo i-^/ar) . . . .102 



II. (a-b) Colour changes in a Mediterranean Flat-fish 



{Bothiis podas) ..... 220-221 



III. Cocoon of African Lung-fish or Mud-fish {Protopterus 



annectens) embedded in mud .... 244 



IV. Stages in the metamorphosis of Leptocephalus brevi- 



rostris, the larva of the European Fresh- water Eel 337 



V. Stages in the metamorphosis of the Plaice {Pleuronectes 



platessa) . ...... 338 



VI. Slab of chalk (Sussex) with remains of Hoplopteryx 



superbus ....... 362 



VII. (a) A downpour of fishes in Scandinavia; (b) Fishing 



with the Remora; (c) The great Sea Serpent . 428 



