708 



INDEX. 



Lampreys, 409 



Lamp shells, 188 



Lancelet, 406 



Larva of Echinoderrm. 96, 105, 



110, 112, 120 

 Hydrozoa, 83 

 Insects, 328 

 Worms, 232 

 Lasso-cells in Aurelia, 67 



Hydra, 53 



Infusoria, 37 



Polyps, 76, 81 



Sponges, 43 



Worms, 143 



Lateral line of fishes, 442 

 Leaf insect, 677 

 Leech, 226 

 Lemnisci, 165 

 Lemur, 618 

 Lepas fascicularis, 293 

 Lepidoptera, 377, 387 

 Lepidosiren paradoxa, 430 

 Lepidosteus, development of, 432 

 osseus, 431 

 platystomus, 432 

 spatula, 432 

 Lepidurus Couesii, 302 

 Lepomonera, 22 

 Leptocardii, 406, 408 

 Leptoceplialus, 446 

 Leptodiscus medusoides, 34 

 Leptoplana, 144 

 Leptosynapta Girardii, 134 

 Leptychaster, 114 

 Lepus Americanus, 586 



Bairdii, 586 



Lernsea branchialis, 297 

 Lerneonema radiata, 298 

 Leucochloridium, 152 

 Lice, plant, 371 

 Ligula simplicissima, 162 

 Limacina arctica, 258 

 Limax flavus, 265 

 Limicolae, 544 

 Limnadia Agassizii, 302 

 Limnetis Gouldii, 301, 302 



Limnoria terebrans, 310 



Limpet, 268 



Lirnulus, anatomy of, 317 



development of, 320 



Polyphemus, 317 

 Lineus, 218 

 Lingual ribbon of mollusks, 276, 



632 



Linguatulina, 361 

 Lingula, 189, 190, 191 



pyramidata, 195 

 Liodon, 500 



Lissotriton punctatus, 481 

 Lithobius Americanus, 358 

 Lithodomus, 250 

 Littorina littorea, 268 

 Liver fluke, 150 

 Lizards, sea, 504 



structure of, 501 

 Lobatae,95 



Lobster, anatomy of, 286 

 Locust, anatomy of, 328 

 Loggerhead turtle, 510 

 Loligo pallida, 273 



Pealii, anatomy of, 273 

 Loon, 541 



Lophius piscatorius, 460 

 Lophobranchii, 460 

 Lophohelia prolifera, 80 

 Lophophore, 182 

 Loxosoma, 185, 187 

 Lucernaria, 63 

 Lucifuga subterraneus, 459 

 Luidia, 114 

 Lumbricus agricola, 230 



rubellus, 230 



terrestris, 229 



Lunatia heros, anatomy of, 261 

 Lung-fish, 428 

 Lyinnaeus appressus, 266 



elodes, 266 

 Lymphatics, 636 

 Lynx Canadensis, 617 



rufus, 617 

 Lyre-bird, 552 

 Lystrosaurus, 513 



