INDEX 



711 



Methods of feeding {Cont.) : 



sucking, 246 

 Metridium, 122, 123, 124, 128 



acontia, 123 



digestive filaments, 123 



dioecious, 123 



enteron, 123 



Great Barrier Reef, 124 



gullet, 123 



mesenteries, 123 



ostia, 123 



Saville-Kent's anemone, 124 



sea anemone, 123 



septa, 123 



siphonoglyph, 123 



stomadaeum, 123 



tentacles, 123 

 Microciona, 98, 101 

 Microcosm, 644 

 Micrograph, electron, 22 

 Microhylidae, 397 

 Micromere, 356 

 Micronucleus, 55, 62 

 Micropyle, 239 

 Microscope, electron, 16, 654 



phase control, 654 

 Microsporidia, 52, 53 

 Midbrain, 357 

 Middle ear, 549 

 Midge, 265 

 Midgut, 235 

 Migration, birds, 447, 448 



mammals, 479 

 Milk, 518 



dentition, 474 



glands, 465 

 Millipedes, 198, 225, 227 

 Milt, 385 

 Mimidae, 462 

 Mineral cyle, 633 



salts, 518, 541 

 Mining bees, 265 

 Mink, 486 



fur, 473 

 Minnows, 395 

 Minot, 533 

 Miocene period, 618 

 Miracidium, 139, 140, 142, 143 

 Miridae, 263 

 Misumena, 272, 279 

 Mites, 274, 275 

 Mitochondria, 21, 22 

 Mitosis, 25-29, 26, 28, 62, 576, 



577 

 Mnernicpsis, 131 

 Moas, 458 

 Moccasin, 423, 425 

 Modern man, 626 

 Modifications, environmental, 

 608 



for functions, 203 



noninherited, 608 

 Mohl, von, 29 

 Molars, 475 



Mole, 482,495,611 

 Molecule, 17 

 Molgula, 322 

 Mollusca, 3, 281-302, 607 



bivalve, 296 



classification, 300 



general characteristics, 288 



modifications in body plan, 

 283 



origins and relations, 297 



relations to man, 298 



representative mollusks, 282 

 Mollusk, primitive deep sea, 289, 



291 

 Molting, crayfish, 212 



feathers, 435 

 Mongoose, 494 

 Monkeys, 325,488-490,495 



anthropoid apes, 489 



aye-aye, 488 



baboon, 489 



Barbary ape, 490 



capuchins, 489 



chimpanzee, 490 



gibbons, 489 



gorillas, 489 



howlers, 489 



langurs, 489 



lemurs, 488 



macaques, 489 



marmoset, 488 



night, 489 



orang-utans, 489 



Rhesus, 488 



sakis, 489 



South American, 489 



spider, 489, 490 



squirrel, 489 



tarsiers, 488 



titis, 489 



woolly, 489 

 Monocystis, 31, 50, 53 



life cycle, 51 

 Monocyte, 526 

 Monoecious, 79, 97 

 Monogenea, 147 

 Monohybrids, 579 

 Monoplacophora, 282, 289, 300 

 Monosaccharides, 519 

 Monotremata, 464, 495 

 Monotremes, 495 

 Moonfishes, 395 

 Morgan, 658 

 "Mormon crickets," 460 

 Mormyrida, 395 



Morphogenetic movements, 565 

 Morula, 477 

 Mosaic vision, 209 

 Mosquito, destroyer, 393 



life cycle, 265 



mouth parts, 247 

 Moss animal, 166 

 Motacillidae, 462 

 Moth, 229, 260 



Mother-of-pearl, 284 



Motmots, 462 



Motor areas of brain, 547 



nerve endings, 352 

 fibers, 178, 352 



neuron, 178, 353 

 Mountain lion, 494 

 Mountainous environment, 642 

 Mourning dove, 461 

 Mouse, 485 

 Mousebirds, 462 



Mouth, 106, 118, 119, 120, 139, 

 150, 154, 163, 164, 166, 

 235,236 



cavity, 333, 334, 515 



parts, 246 

 Movement, 4, 498 



with exoskeleton, 500 



without skeleton, 499 

 Mucosa, 332 



intestinal, 518 

 Mucous gland, 540 

 Mud clam, 298 



eels, 395 



turtle, 407 

 Mudpuppy, 396, 397, 402 

 Mulattocs, 587 

 Muller, H.J., 658 

 Miiller, Johannes, 655 

 Multicellular animals, 92 



glands, 540 

 Multigenic traits, 587 

 Multiple alleles, 589 



fission, 558 

 Murphy, 533 

 Murres, 452, 461 

 Musca, 257 

 Muscidae, 265 

 Muscle, 85, 347, 348, 504 



abductor, 349 



adductor, 349, 506 



cardiac. 85, 346, 504, 506 



cells, 152, 504 



circular, 106, 174, 518 



contraction, 349 



depressor, 347, 348 



dorsoventral, 136, 137 



extensor, 349 



eye, 550 



fibers, 137, 504 

 circular, 108, 137 

 dorsoventral, 137 

 longitudinal, 107, 108, 137 



flexor, 349 



function, 505 



insertion, 346, 350, 505 



involuntary, 346, 504 



levator, 349 



longitudinal, 106, 174 



movement, 504 



origm, 346, 350, 505 



rotator, 349 



skeletal, 85, 504, 505 



