710 



INDKX. 



Idotfea, nervous system of, 386, 



390 

 Idyia roseola, 93 

 Iguana, 504 

 Iguanodou, 515 

 Individuality, 656 

 Ineducabilia, 583 

 Infusoria, 31, 40 

 Inheritance, law of, 11 

 Insectivoia, 587, 639 

 Insects, anatomy of, 308 



brain of, 317 



characters of, 307, 344 



classification of, 365 



digestion in, 316 



ears of, 335 



eye of, 335 



embryology of, 339 



locomotion in, 337 



metamorphosis of, 308 



parthenogenesis in, 333 



polymorphism in, 348 



respiration of, 333 



senses of, 336 



useful, 334 

 Instinct, nature of, 680 

 Isopoda, 385 

 Isurus punctatus, 430 

 Ixodes albipiotus, 341 



bovis, 341 



Jacchds, 630 

 Jaws, 631 

 Jelly-fisli, 63 

 Julus, 336 



Kangaboo, 575, 577 

 Katydid, 676 

 Killer-whale, 595 

 King-bird, 553 

 King-crab, 397 

 Kinglet, 555 

 Kiwi-kiwi, 538 

 Kogia Floweri, 594 



Labyrinthict, 457 

 Labyrinthodon, 483, 483 

 Labyrinthodontia, 483 

 Lacertilia, 501, 517 

 Lachnosterna fufca, 353 

 Lactophrys trigonus, 463 

 Lselaps, 515 



Lagopus leucurus, 546, 546 

 Lamellibrauchiata, 333 



classification of, 336 

 Lampreys, 409 

 Lamp shells, 188 

 Lancelet, 406 



Larva of EcLinoderms, 96, 105, 

 110, 113, 130 



Hydrozoa, 83 



Insects, 338 



Worms, 333 

 Lasso-cells in Aurelia, 67 



Hydra, 53 



Infusoria, 37 



Polyps, 76, 81 



Sponges, 43 



"Worms, 143 

 Lateral line of fishes, 443 

 Leaf insect, 657 

 Leech, 366 

 Lemnisci, 165 

 Lemur, 618 

 Lepas fascicularis, 373 

 Lepidoptera, 357, 367 

 Lepidosiren paradoxa, 430 

 Lepidosteus, development of, 433 



osseus, 431 



platystomus, 433 



spatula, 433 

 Lepidurus Couesii, 383 

 Lepomonera, 33 

 Leptocardii, 406, 408 

 Leptocephalus, 446 

 Leptodiscus medusoides, 34 

 Leptoplana, 144 

 Leptosynapta Girardii, 134 

 Leptychaster, 114 



