INDEX 



449 



Ipnops, luminous organs, 152; /. 

 murrayi, 150 



Ireland, fresh-water fishes, 277 



Iridescence, 226 



Iridocytes, 225 



Iris, 186 



Isinglass, 400 f. 



Isocercal tail, 61 



Isospondyli, 362, 377 



Isotherms, 255, 260 f. 



Istiophoridae, 379; see also Spear- 

 fish 



Istiophorus, see Sail-fish 



Isurus, see Mackerel Shark 



Janitore, 436 



Japan, fisheries, 386 f. 



Jaws, 106 f. 



Jet propulsion, 28 



John Dory, anal fin, 72; mouth, 

 feeding, 116, 117; systematic 

 position, 378; "thumb-mark" on 

 side, 432 



Jonah, 125 



Juvenal's Turbot, 424 



Kareius, 93; tubercles, 92 



Kelp-fish, 379 



Kelt, 285 



Kentucky Blind-fish, 201, 232 



Kidneys, 1 73 ; secretion of mucus in 



Stickleback, 306 

 Kilch, 175 



King Salmon, see Qiiinnat 

 Kipper, 396, 398 

 Klip-fish, pugnacity of males, 303 

 Kurtus, care of eggs, 312 f. 



Labial nostrils, 183 

 Labrador Current, 260 

 Labridae, 378; see also Wrasse 

 Labrus, see Wrasse; L. mixtus, see 



Cuckoo Wrasse 

 Labyrinthic Fishes, air-breathing 



organs, 46 f. ; breeding, 307 f. ; 



systematic position, 379 

 Lactophrys, see Trunk-fish 

 Lady-fish, larva, 336; systematic 



position, 377 

 Lagena, 191 

 Lake Herring, 383 

 Lake Wenern Salmon, 266 

 Lamnidae, 374 



2F 



Lamprey, gills, branchial basket, 37; 

 respiration, 40; mouth, 103 f., 

 104; tongue, 120; teeth, 120; 

 skull, 160; vertebral column, 163 

 f. ; cerebellum, 179; nostril, 182; 

 pineal gland, 190; semicircular 

 canal, 191; eggs, 318; develop- 

 ment, 331 f. 



Lampris, see Opah 



Lancelet, 331 



Lancet-fish, head, 131; teeth, food, 

 132 



Landlocked Salmon, 266 



Lantern-fish, 150; luminous organs, 

 151 f. ; systematic position, 377; 

 see also Scald-fish 



Lapillus, 192 



Large intestine, 170 



Large-mouthed Wrasse, see Epibulus 



Largest fish, 425 



Larva, 324, 330 f., 333; coloration, 

 210 f. 



Larval organs, 330 f. 



Larvicidal fishes, 421 f. 



Lasiognathus, 72; line and bait, 



71 

 Lateral line, 100, 198 f. 

 Lates, see Nile Perch 

 Latin names, see nomenclature 

 Latrunculus, see Transparent Goby 

 Leaping, 30 f. ; of Tarpon, 31 

 Leather, from fish skins, 401 

 Leather Carp, 93, 368 

 Leatherjacket, see File-fish 

 Leather-mouth, 138 

 Lebistes, see Millions 

 Lederkarpfen, see Leather Carp 

 Leech, 416 

 Legends, 424 f. 

 Lemon Sole, caudal fin, 74 

 Lens, 185 



Lepadogaster, see Cling-fish 

 Lepeophtheirus, see Sea Louse 

 Lepidopus, see Frost-fish 

 Lepidosiren, see Lung-fish, South 



American Lung-fish 

 Lepidosteidae, 377 

 Lepidosteus, see Gar Pike; L. tropicus^ 



275 

 Lepidotus mantelli, dentition, 361; 



L. minor, 361 

 Lepomis, sec Fresh-water Sun-fish 

 Uptocephalus, 289, 333, 336 f. 



