INDEX. 



Lepus Americanus, 586 



Bairdii. 586 



Lernsea branchialis, 277 

 Lerneonema radiata, 278 

 Leucochloridium, 110 

 Lice, plant, 350 

 Ligula simplicissirna, 120 

 Limacina arctica, 238 

 Limax flavus, 245 

 Limicolae, 544 

 Limnadia Agassizii, 282 

 Limnetis Gouldii, 281, 282 

 Limnoria terebrans, 290 

 Limpet, 248 

 Limulus, anatomy of, 297 



development of, 300 



Polyphemus, 297 

 Lineu, 156 

 Lingual ribbon of mollusks, 256, 



632 



Linguatulina, 340 

 Liugula, 147, 148, 149 



pyramidata, 153 

 Liodon, 500 



Lissotritor. punctatus, 481 

 Lithobius Americanus, 338 

 Lkhodomus, 230 

 Liltorina littorea, 248 

 Liver fluke, 108 

 Lizards, sea, 504 



structure of, 501 

 Lobatse, 95 



Lobster, anatom} r of, 266 

 Locust, anatomy of, 308 

 Loggerhead turtle. 510 

 Loligo pallida, 253 



Pealii, anatomy of, 253 

 Loon, 541 



Lophius piscatorius, 460 

 Lophobranchii, 460 

 Lophohelia prolifera, 80 

 Lophophore, 140 

 Loxosoma, 143, 145 

 Lucernaria, 63 



Lucifuga subterraneus, 459 

 Luidia, 196 

 Lumbricus agricola, 168 



rubellus, 168 



terrestris, 167 



Lunatia heros, anatomy of, 241 

 Lung-fish, 428 

 Lymnseus appressus, 246 



elodes, 246 

 Lymphatics, 636 

 Lynx Canadensis, 617 



rufus, 617 

 Lyre-bird, 552 

 Lystrosaurus, 513 

 Lytta marginata, 353 



MACACUS, 620 



Machilis, 345 



Mackerel, 456 



Macrobiotus Americanus, 340 



Macropus thetidis, 577 



Mactra lateralis, 229 



ovalis, 231 



Madrepora cervicornis, 82 

 Mseandrina, 80, 81, 84 

 Magpie, 554 

 Malacopoda, 335, 365 

 Malapterurus electricus, 449 

 Male fishes, obstetrical habits of, 



449, 461 



Mallotus villosus, 452 

 Mammalia, anatomy of, 564 



characters of, 557, 628 



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 



