INDEX 



709 



Lion, 486 



Lip, 150, 151 



Lipase, 520 



Lipids, 520 



Lipoids, 520 



Liposcelis, 263 



Lithophaga, 298 



Little brown bat, 483 



Liver, 318, 319, 331, 515, 518, 



532 

 Liver fluke, 139, 140, 142 



cercaria, 139, 140, 142 



digestive system, 1 39 



excretory system, 159, 140 



life history, in human, 142 

 in sheep, 140 



metacercaria, 140, 141, 142 



miracidium, 139, 140, 142 



mouth, 139, 140 



nervous system, 1 39 



parasitic, 1 39 



parenchyma, 1 39 



redia, 139, 140, 142 



reproductive system, 139, 140, 

 142 



sporocyst, 139 



structure, 140 

 "Living fossil," 479 

 Lizards, 325, 413 

 Llamas, 487 

 Loa, 157, 159 

 Lobe of brain, 547 

 Lobefinned fish, 379, 394 

 Lobster, 220 



claw, hand, 596 



fisherman, 220 



spiny, 198 



trap, 220 

 Locomotion, 87 



Amoeba, 33 



bird, 435, 447 



crayfish, 214 



Euglena, 44 



fish, 380 



flatvvorm, 1 34 



Hydra, 113, 114 



Paramecium, 55, 59 



pigeon, 435 



snail, 291 

 Locustidae, 263 

 Loligo, 293, 302 

 Long-horned beetle, 264 



grasshoppers, 263 

 Longissimus dorsi, 347 

 Longitudinal, fission, 45 



fissure, 546 



muscle, 106, 178, 310 



muscle fiber, 107, 152 



nerve cord, 135, 139 

 Long-legged waders, 461 

 Long-neck clam, 299 

 Loons, 451, 452, 461 

 Loop of Henle, 539 

 Lophiidae, 379 



Lophius, 391 

 Lopophore, 166, 167, 168 

 Louse flies, 265 

 Lowland environment, 642 

 Loxodonta, 484 

 Lucanidae, 264 

 Lugworm, 171, 194 

 Lumbar enlargement, 351 



vertebra, 501 

 Lumbricus terrestris, 171-183. 

 172, 174, 176, 177, 178, 

 179, 181, 182, 196 



behavior, 181 



circulatory system, 175, 176 



digestive system, 175 



excretory system, 178 



external anatomy, 171 



giant, 189 



grafting, 182 



internal anatomy, 172, 173 



muscular system, 174 



nervous system, 178 



parasites of, 50 



regeneration, 180, 182 



reproduction, 182 



respiration, 177 



sense organs, 181 

 Lumen, intestine, 137 



pharyngeal region, 137 

 Luminescence, 45, 46 

 Lung, 537, 538 



fish, 379, 392, 394 



frog, 333, 334, 358 



man, 532, 535 

 Lungless salamander, 404 

 Ultra, 484 

 Lycaenidae, 265 

 Lycosa, 278 

 Lycosidae, 278 

 Lygaeidae, 263 

 Lymantriidac, 264 

 Lymnaea, 289, 293, 301 

 Lymph, 86, 525, 529 



duct, 532 



heart, frog, 339 



node, 532 

 Lymphatic system, 339, 532 

 Lymphocyte, 335, 526 

 Lynx, 486 

 Lyomerida, 395 



M 



Macaca, 488, 490 

 Macaques, 489 

 Macaws, 461 

 Mackerel, 394 

 Macrobiotus, 279 

 Macromercs, 356 

 Macronucleus, 55, 62 

 Macropus, 482 

 Madreporite, 304, 307, 310 

 Mai de Caderas, 74 

 Malaclemys, 411, 412 



Malacology, 10 



Malacostraca, 199, 217, 221 



Malaria, 67-70, 69 



Mallard duck, 433, 461 



Malleus, 500, 549 



Mallomonas, 75 



Mallophaga, 229, 259, 260, 263 



Malpighi, 653, 654 



Malpighian tubules, 226, 235, 



236, 269, 271 

 Maltase, 520 

 Malthus, 649 

 Maltose, 519 



Mammalia, 317, 325, 463-497, 

 616, 617, 647 



adaptations, 482 



age of, 617 



blood, 525, 526 



blood clotting, 526 



brain, 472 



chromosomes, 585 



circulation, 525-535 



classification, 495 



claws, nails, hoofs, 473, 474 



development, 475, 477 



digestion, 468 



domesticated, 491 



egg, 477 



embryogeny, 477, 478 



endocrine glands, 472 



even-toed, 487 



evolution, 623-626 



excretion, 469 



foot posture, 475, 476 



fossil, 492, 617 



fur, 473 



game, 487 



hair, 473 



hibernation, 479 



migration, 479 



muscular system, 467, 505-507 



nervous system, 471 



odd-toed,"487 



relations to man, 495 



reproductive system, 472 



respiratory system, 469 



scales, 473 



sense organs, 471 



skeleton, 465, 466 



skin glands, 474 



structures, 473 



teeth, 474, 475 

 Mammalogy, 10 

 Mammals, 8, 465-497 



carnivorous, 485 



classification, 495 



egg-laying, 481 



fossil, 492 



flying, 485 



gnawing, 485 



hoofed, 487 



insect-eating, 482 



life span, 491 



omnivorous, 485 



