INDEX 



445 



Facial nerve, i8o 



Family, 369 



Fats, 381 f. 



Feather-back, dorsal fin, 65 



Feeding migrations, 262, 264 



Feeler, see Barbel 



Fertilisation, 280, 317 



Fertiliser, 400 



Fertility, of species, 365 



Fierasfer, 248; eggs, 322; see also 

 Pearl-fish 



Fiftecn-spined Stickleback, nest, 307 



Fighting-fish, 303; respiration, 46; 

 courtship, 301 f. ; breeding,'302, 308 



Filamentous rays, 79 



File-fish, 25; locomotion, 27; pel- 

 vic fins, 81 ; scales, 97; teeth, 128, 

 137; poisonous flesh, 144; sound- 

 production, 155; mimicry, 217, 

 218; systematic position, 379 



Filiform body, 18 



Fin, 13, 54 f. ; function, 15, 63; 

 different kinds, 54; origin and 

 evolution, 54 f. ; development, 55 ; 

 structure, 57 f.; abnormalities, 419 



Fin-girdle, see shoulder-girdle 



Finlets, 69 



Fin movements in swimming, 25 f. 



Finnan Haddie, 398 



Fin-rays, 58, 63 



Fin-rot, 414 



Fin-spines, 63, 67 



Firm-fin, see Cirrhitid 



Fish, definition, i f. ; systematic 

 position, 4; classes of, 6; poisoning, 

 145; fights, 302; as food, 381 f. ; 

 hooks, traps, weirs, 389 f; inspec- 

 tors, 395; curing, 396 f.; cake, 

 rissoles, sausages, 399; fertiliser, 

 400; oil, meal, glue, leather, 

 400 f. ; gallery at British Museum, 

 422 f. ; gods, mummies, 433 



Fisheries, 385 f. 



Fishermen, numbers employed, 387 f. 



Fishery Board for Scotland, 405 



Fishery investigations, 404 f. 



Fishing - frog, see Angler - fish. 

 Angler, Common Angler 



Fishing grounds, 386 



Fishing industry, 388 



Fishing methods, 389 f. 



Fishing vessels, 388 f., 395 



Fistularia, see Flute-mouth 



Fistulariidae, 378 

 Flake, 385 



Flat-fish, form of body, 16; loco- 

 motion, 27; dorsal fin, 64, 68; 



pelvic fins, 82; lateral line, 100; 



mouth, 118; teeth, 134; pyloric 



caeca, 169; eyes, i86, 189; colours, 



215, 220 f. ; ambicoloration, 228; 



albinos, 229; development, 338 f. ; 



systematic position, 379; trade 



term, 384 

 Flat-head, 224, 379 

 Flesh, 381, 394; poisonous proper- 

 ties, 144 f, ; see also muscles 

 Flesus, see Flounder 

 Flight, 78 f. 



Florida Pipe-fish, breeding, 313 f. 

 Flounder, 17; caudal fin, 74; 



tubercles, 92; teeth, food, 134; 



colour changes, 220, 226 f. ; in 



salt and fresh water, 253, 265; 



eggs, 283; development of egg, 



318 

 Fluctuations, 408 

 Fluke, 418 

 Flute-mouth, 116 

 Flying-fish, 76; pectoral fins, 77 f.; 



flight, 78; eggs, 323; systematic 



position, 378 

 Flying Gurnard, pectoral fins, flight, 



78, 80; sound-production, 155; 



systematic position, 379 

 Food, 120 f. ; absorption, 170; of 



hill-stream fishes, 239 

 Food-fishes, 384 f. 

 Food value of fish, 38 1 f. 

 Fore-brain, 177 

 Foricula, 296 



Form, 9 f. ; of hill-stream fishes, 237 

 Fossil-fishes, 340 f. 

 Four-eyed Fish, 187; eye, 187; 



intromittent organ, 296; number 



of young, 327 

 Fox Shark, 73; caudal fin, 74; 



feeding, 126 

 Freezing, 395 

 Fresh fish. 394 f. 

 Fresh-run Salmon, 284 

 Fresh-water Eel, 11; tenacity of life, 



44; scales, 91; food, 138; lymph 



heart, 173; hibernation, 244; 



distrilDution, 265; breeding, 288 f.; 



development, 336 f. 



