604 



INDEX 



Moas, 505 



Modification of types, 501 

 under cultivation, 518 



Moeritherium, 523, 524 



Molars, 407, 624, 525 



Mole cricket, 274 



Molecule, 7 



Moles, 412, 481 



Mollusca, 208, 217, 545, 547 



Molluscoidea, 189 



Mollusks, 113, 208-22S, 437, 440-442, 449, 462, 

 466, 481, 494, 513 



Molting, 179, 258, 279, 385, 402 



Monarch butterfly, 281, 502 



Monaxon spicules, 130, 131 



Monecious animals, 105, 155, 162, 189, 219, 225, 

 235, 246, 264, 310, 311, 333, 442 



Mongolian type, 425 



Monhystera sentiens, 178 



Monitors, 384 



Monkeys, 415, 506 



Monoblastic embryo, 120 



Monodelphia, 411 



Monohybrid, 531, 533 



Monotremata, 410, 411 



Monotremes, 408, 411, 419, 457, 606 



Moose, 509 



Morgan, T. H., 540 



Morphological differentiation, 93 



Morphology, 4 



Morula, 119, 120, 121, 418, 449 



Mosaic image, 255 



Mosaic theory of creation, 25 



Mosquitoes, 89, 90, 181, 287, 288, 498 

 proboscis, 273 



Moss animals, 187 



Mother-of-pearl, 210 



Moths, 273, 285, 537 



Motion, 54 



Motor end plate, 100 



Motor fibers, 327 



Motor functions, 466-467 



Mountain, faunal zones, 502-503 



Mountain goat, 507 



Mouse, northern jumping, 509 



Mouth, 69, 70, 79, 134, 135, 142, 144, 145, 157, 

 168, 175, 178, 179, 183, 185, 186, 188, 190, 

 192, 195, 196, 201, 202-204, 207, 210, 212, 

 218, 219, 222, 226, 229, 232, 233, 241, 243, 

 245, 253, 269, 272-273, 297, 298, 309, 310, 

 312, 314, 317, 321, 335, 336, 338, 342, 350, 

 352, 353, 357, 367, 368, 379, 384, 438 



Movement, 41, 466 



Mucous canals, 341 



Mucous glands, 318, 321, 369 

 secretion, 321, 335, 439, 463 



Mud flat faunas, 483 



Mud puppy, 364, 366 



Mulattoes, 535 



Mules, 536 



Miiller, Johannes, 553 



Multiple hybrid, 533 



Multiplication period, 107-110 



Murex, eye, 223 



Musca domestica, 288 



Muscle cells, 29, 99, 100, 176, 177, 435, 443 

 Muscle contraction, 467 

 Muscle fibers, 193 



Muscle tissue, 99, 100, 159, 321, 443 

 Muscles, 103, 104, 182, 186, 188 203-205, 209, 

 210, 213, 231, 233, 239, 252, 343, 401, 443, 

 467 



ear, 519 



eye, 333 

 Muscular coordination, 395 

 Muscular energy, 454 

 Muscular movement, 467 

 Muscular system, 320-321, 443 

 Musk, 421 



ox, 509 

 Muskrats, 481 

 Mussels, 208-216, 221, 228 

 Mutant, 534 

 Mutation, 522, 534 

 Mutualism, 495 

 Muzzle, 406 

 Myelencephalon, 328 

 Myonemes, 85, 443 

 Myrianida, 248 

 Myriapoda, 269, 304, 305 

 Myriapods, 269-270, 442, 514 

 Myrmeleon, 290 

 Mysis, 265, 266 

 Mysis, 266 

 Myxinoidea, 335 

 Myxinoids, 335-336, 442 



N 



Nacre, 210 



Naiad, 279 



Nails, 318 



Naked snails, 220 



Nares, 329 



Nasal chamber, 322 



Natural classification, 57 



Natural immunity, 490 



Natural selection, 516, 517, 521, 522 



Nauphus, 266, 266, 497 



Nausea, 445 



Nautiloids, fossil, 513 



Nautiluses, 217 



types, 224 

 Neanderthal man, 424, 425 

 Nearctic region, 504, 507 

 NecatoT afnericanus, 179 

 Necessity, 517, 521 

 Neck, 218, 316, 379, 390 

 Nectar, 292 

 Necturus, 364 

 Necturus maculosus, 366 



lung, 441 

 Negative response, 65 

 Negroid type, 425 

 Nekton, 483 

 Nemas, 177 



Nemathelminthes, 175, 177, 544, 547 

 Nemathelminths, 175-182, 438, 442, 461 

 Nematocysts, 135-137, 146, 148, 544 

 Nematoda, 177 



