Subject Index 



n-i: 



Mesentery (ies), 22, 194, 195, 278, 279, 



281, 282 

 Mesethmoid, 124 

 Mesobronchus, 519 

 Mesocoele, 145, 151 



Mesoderm, 81, 82, 89, 91, 92, 93, 96, 97, 

 154, 156, 173, 213, 215, 217, 258, 

 259, 200, 261, 262, 263, 265, 266, 

 270, 272, 273, 275, 277, 289, 290 

 Mesodermal folds, 261 

 layers, 268, 269, 277, 292 

 pouches, 259, 260, 267, 268, 270 

 somites, 261, 270, 283 

 Mesomere(s), 277, 278 

 Mesomeric zone, 278 



Mesonephric (Wolffian) duet, 80, 81, 82, 

 83, 87, 88, 280 

 tubules, 81, 82, 85, 280, 283 

 Mesonephros, 79-87, 80, 83, 279, 280, 



282, 473, 474 

 Mesopterygium. 129 

 Mesothelium, 303 

 Mesovarium, 282 

 Mesozoic, 497, 560, 567, 789 

 Metabolism, 221, 226, 246, 247, 251 



basal, 221, 222 

 Metacarpals, 107, 131 

 Metamorphosis, 240, 244, 299, 445, 457, 458 



degenerative, 406, 407 



of frogs, 457 



of toads, 457 

 Metanephric tubule, 85 

 Metanephros, 71, 79-86. 80, 88, 280, 641 

 Metapleural folds, 403 

 Metapterygium, 129 

 Metatarsals, 107, 131, 132, 512 

 Metatheria, 243, 729 

 Metazoa, 390 



Metencephalon, 6, 144, 145, 148, 151, 712 

 Michelangelo, 807 

 Microchiroptera, 739 

 Midas chrysoleucas, 769 

 Midbrain, 144, 273, 275 

 Migration of cells, 52 

 Milk, 242, 243 



teeth, 39, 40, 42, 43, 49, 54 

 Milk-line (s), 578, 580 

 Mink, 747, 748 

 Mitral valve, 622 

 Moa, 554 



Molars, 38, 43, 45, 563 

 Mole, 736, 775 



golden, 737 



marsupial, 733 

 Molgula, 397 

 Mollusk, 101 

 Molting, 508 

 Mongoose, 747 

 Monkey (s), 66, 98, 770 



platyrhine, 769 



proboscis, 771 



rhesus, 588, 589, 594, 661, 671 

 Monodelphia, 729 

 Monodon, 765 

 Monoecious, 233 



Mononuclear leucocyte, 329 

 Monophyodont, 54, 635 

 Monotreina, 729 



Monotreme(ata), 571, 657, 658, 664, 726 

 728, 733 



copulatory structures of, 662 



reptilian characteristics of, 77 L 

 Monro, foramen of, 150 

 Moose, 757 

 Mormyridae, 440 

 Morphology, causal, 351-353 



comparative, 353 



experimental, 353 

 Morula, 263, 264 

 Mosasaurs, 500 

 Mother, 237, 239, 243 

 Motmots, 551 

 Motor, 141 



cells, 142, 152, 160, 171 



fibers, 160, 171 



nerve-endings, 314, 315 



nerves, 159, 160, 182 



plate, 316 



system, 89-138 



tracts, 154 

 Mouse (mice), 232, 233, 740 

 Mouse deer, 757 



Mouth, 25, 98, 196, 198, 214, 268, 270, 

 274 



cavity, 14, 25, 26, 166, 195, 196, 199 



floor of, 166 



roof of, 122, 125, 127, 136, 137, 166, 176, 

 198 

 Mucin, 637 

 Mucosa, 28, 198 

 Mucus, 197, 199 



glands, 636 

 Mudfish, 432 



Miillerian duct(s), 80, 87, 88, 283, 643-650 

 Multipolar cell, 140, 316, 317 

 Multitubercular, 53 

 Multituberculata, 567 

 Murres, 546 

 Mus, 740 

 Muscle(s), 89-100, 258, 581-607 



abductor, 94, 96 



acromiodeltoid, 92 



adductor, 96 



appendicular, 92-97 



auricular, 98 



belly of, 95 



biceps, 95 

 femoris, 92 



of birds, 518, 519 



body-, 89-92, 281 



branchiomeric, 96-100, 97, 120, 166, 167, 

 213, 288 



canine, 98 



cardiac (heart), 213, 287, 315, 316 



caudal, 288 



cephalohumeral, 92 



ciliary, 155, 183, 534, 683, 684 



circular, 28, 30, 683 



cleidomastoid, 92, 168 



(•remaster, 615, 652 



