LIST OF ILLUSTRATIONS 



PAGE 



SKELETON OF PERCH (after Giinther) 6 



BONES OF HEAD OF THE PERCH (after Giinther) . . ; . . 23 

 BONES OF PART OF HEAD OF THE PERCH (after Giinther) . ; . 23 



PLATE 



I. THE STURGEON (Adpenser sturio) Facing 36 



II. THE PERCH (Perca fluviatilis} ,, 48 



(THE RUFFE, OR POPE (Acerina cernua) . . . . -\ 

 THE THREE-SPINED STICKLEBACK (Gastrosteus aculeatus) . J- ,, 80 

 THE BULLHEAD, OR MILLER'S THUMB (Cottus gobio) . . J 



IV. THE FLOUNDER (Pleuronectes flesus] ,, 96 



( THE ROACH (Leudscus rutilus) 



128 



[ THE GUDGEON ( Gobio fiuviatilis} 



( THE DACE (Leudscus vulgaris} 



VI. \ \ 140 



[ THE MINNOW (Leudscus phoxinus) 



VII. THE BREAM (Abramis brama} ,, 150 



{ THE LOACH (Nemachilus barbatulus) ) 



IIM \ l6 3 



[ THE PIKE (Esox ludus) j 



r THE SALMON IN SPRING (Salmo salar) > 



IX.-! THE SALMON IN AUTUMN (Salmo salar) . . . .V ,, 193 

 ^THE BULL-TROUT (Salmo eriox) , . . . . . J 

 / THE COMMON TROUT : Northern Variety (Salmo fario] . . \ 



X.-| THE SALMON-TROUT (Salmo trutta) / " 2 & 



^THE COMMON TROUT: Southern Variety (Salmo fario} . . J 



("THE CHAR (Salmo [Salvelinus] alfinus) . . . .} 

 XlJ V 272 



[THE GRAYLING (Thymallus vulgaris} . . . - . . J 



f THE EEL (Anguilla vulgaris) } 



XII J V 288 



[THE LAMPERN (Petromyzon fluviatilis] J 



