714 



INDEX 



Marginal plates, 344* 



Mceritherium, 606 



Marmosets, 486 See Ha,palid 



Marrow, 84* 



Marsh, 0. C., 688 



Marsupialia, 478*, 492, 513, 514, 5-21, 



522, 523, 524, 561, 562, 573, 575, 576, 



578, 579, 582, 583, 584, 587, 595, 596, 



598, 602 



Marsupial bones, 521*, 524 

 Marsupial Mole, 495, 579, 581 

 Marsupium, 478*, 491 

 Mastodonsaurus, 304 

 Mastoid, 511 

 Matthew, Patrick, 683 

 Maturation of ovum, of Amphioxu*, 56 

 Maxilla, of Craniata, 80, 81* See Skull 

 Maxillary antra, 576 

 Maxillary nerve, of Craniata, 104 

 Maxillo-turbinals, 453 

 Meckel's cartilage, of Craniata, 77*, 80, 



81 : of Dog-fish, 149 : ot Elasmo- 



branchs, 173 

 Mediastinum, 462*, 467 

 Medulla oblongata, 100* See Brain 

 Medullary canal, 34, 35 

 Medullary folds, of Ascidian, 34 : of 



Amphioxm, 57, 58 



Medullary groove, of Craniata, 34, 98 

 Medullary keel, 136 

 Medullary plate, of Ascidian, 34 : of 



Amphioxus, 57, 58 

 Megachiroptera, 485*, 508, 550 

 Megalobatrachus, 293, 296 

 Megameres, 288* 

 Megapodius, 416. 437 

 Megapodiidw, 622 

 Jfegasolide*, 622 

 Megatheriidw, 604, 605 

 Megatherium, 641 

 Megistanes, 410, 435, 443, 445 

 Meibomian glands, 580 

 Melet, 569 



Membrana granulosa, 587* 

 Membrana semilunaris, 398 

 Membrane bones, 78* 

 Membranous cochlea, 472 

 Membranous labyrinth, 115, 116 See 



Ear 



Membranous vestibule, 115* 

 Meniscus, 386* 

 Mental prominence, 554* 

 Mento-meckelian, 270, 269 

 ^fenura, 622, 631, 417 

 Mergansers, 416 

 Mergus, 416 

 Meroblastic, 587 

 Meropidce, 417 

 Merrythought, 391 

 Mesencephalon See Mid-brain, 100 

 Mesenteric artery, 92 

 Mesenteries, dorsal and ventral, 3, 5 



Mesentery, of Craniata, 71, 80* 

 Mesethmoid, 76*, 79, 80* See Skull 

 Mesoarium, of Dog-tish, 163 : Lizard. 



333 



Mesoccele. 100 See Brain 

 Meso-coracoid, 209 

 Mesocuneiform, 458 See Limb-skeleton 



of Mammals 



Mosoderm, formation in Craniata, 121 

 Mesodermal segments, of Craniata, 122, 



121 



Mesogaster, 324* 



Mesonephric ducts, of Craniata, 117* 

 Mesonephros, of Craniata, 117*, 119 

 Mesonephros, of Cyclostomi, 138 

 Mesopithecns, 610 

 Mesoplodon, 480 

 Mesopterygiutn, 151*, 175 

 Meso-pterygoid, 206, 205 

 Meso- rectum, 324* 

 Mesorchium, of Dog-tish, 165* : of Lizard, 



332 



Mesoscapular segment, 515* 

 Mesosternum, 511 

 Meso-tarsus joint, 394* 

 Metacarpals, of Craniata, 82*, 83 

 Metacarpals (feathers), 385 

 Metacoele, 100 See Brain 

 Metacone, 561* 

 Metaconid, 561* 

 Metacromion, 455 

 Meta-discoidal placenta, 595 

 Metagenesis of Thaliacea, 22 

 Metamerism, 122* 

 Metamorphosis, of BcLlanoylonsus, ft, 9 : of 



Ascidian, 23, 31 : Frog, 290 

 Metamorphosis, retrogressive, of As- 

 cidian, 14, 37, 38 

 Metanephric ducts, of Craniata, 117*, 



119 



Metanephros, of Craniata, 117*, 119 

 Metapleure, of Amphioxus, 45, 63 

 Metapophyses, of Rabbit, 448* 

 Metaptervgium, 151*, 175 

 Metapterygoid, 205, 206 

 Metatarsals, of Craniata, 83" 

 Metatheria, 478* See Marsupialia 

 Metencephalon, 100* See Brain 

 Mice, 484 



MicrocMroptera, 485*, 508, 550 

 Microlestes, 640 

 Micromeres, 288* 

 Micropyle, 216 

 Mid-brain, of Craniata, 100 

 Mid-digitals, 385 

 Mid-kidney, 117 

 Milne-Edwards, H., 681 

 Mimicry, 657 

 Minimus, if Craniata, 83* 

 Miocene, 641 

 Mitral valve, 463 

 Moas, 411, 427, 430, 436 



