INDEX. 



711 



Lepus Americanus, 586 



Bairdii. 586 

 liernaea branchialis, 277 

 Lerneonema radiata, 378 

 Leucoehloridium, 153 

 Lice, plant, 350 

 Ligula simplicissima, 163 

 Limacina arctica, 338 

 Limax flavus, 345 

 Limicolse, 544 

 Limnadia Agassizii, 383 

 Limnetis Gouldii, 381, 283 

 Limnoria terebrans, 290 

 Limpet, 348 



Limulus, anatomy of, 297 

 development of, 300 

 Polyphemus, 297 

 Lineus, 218 

 Lingual ribbon of mollusks, 356, 



633 

 Linguatulina, 340 

 Lingula, 189, 190, 191 

 pyramidata, 195 

 Liodon, 500 



Lissotriton punctatus, 481 

 Litliobius Americanus, 388 

 Litbodomus, 380 

 Littorina littorea^ 348 

 Liver fluke, 150 

 Lizards, sea, 504 



structure of, 501 

 Lobatse, 95 



Lobster, anatomy of, 366 

 Locust, anatomy of, 308 

 Loggerhead turtle, 510 

 Loligo pallida, 353 



Pealii, anatomy of, 253 

 Loon, 541 



Lophius piscatorius, 460 

 Lophobranchii, 460 

 Lophohelia prolifera, 80 

 Lophophore, 183 

 Loxosoma, 185, 187 

 Lucernariii, 63 



Lucifuga subterraneus, 459 

 Luidia, 114 

 Lumbricua agricola, 210 



rubellus, 310 



terrestris, 209 

 Lunatia heros, anatomy of, 341 

 Lung-fish, 438 

 Lymnaeus appressus, 346 



elodes, 346 

 Lymphatics, 636 

 Lynx Canadensis, 617 



rufus, 617 

 Lyre-bird, 553 

 Lystrosaurus, 513 

 Lytta marginata, 353 



Macacus, 620 



Machilis, 345 



Mackerel, 456 



Macrobiotus Americanus, 340 



Macropus thetidis, 577 



Mactra lateralis, 339 



ovalis, 231 

 Madrepova cervicornis, 83 

 Mseandrina, 80, 81, 84 

 Magpie, 554 

 Malacopoda, 335, 365 

 Malapterurus electricus, 449 

 Male fishes, obstetrical habits of, 



449, 461 

 Mallotus villosus, 453 

 Mammalia, anatomy of, 564 



characters of, 557, 638 



development of, 566 



ears of, 563 



hair of, 561 



horns of, 561 



limbs of, 560 



music of, 569 



sexual differences of, 566 



skeleton of, 558 



teeth of, 562 

 Mammals, development of, 649 

 Mammoth, 598 



