426 



INDEX 



Mesozoic, 336-339; Cenozoic, 339- 



404; classification of modernized, 



345, 346; placental mammals, 360- 



404 

 Mammary glands, 325 

 Mammoth, 396 

 Manatees, 396, 397, 398 * 

 MandrU, 379 *, 381 

 Manidae, 377 

 Manis, 377; M. gigantea, 377; M. 



iemmincki, 375 *, 377 

 Marmosa, 354 

 Marmosets, 377, 381 

 Marmot, 372 * 

 Marsipobranchii, 88 

 Marsupialia, 345 

 Mastodon, 396 

 Matamata, 240 * 

 Matthew, W. D., 219, 220 

 McGregor, J. H., 387, 388 

 Medullary Plate, definition of, 32, 



45 *, 47 

 Megachiroptera, 363 

 Megalichlhys, 182 

 Megalops atlanticus, 138 * 

 Melurus, 368 

 Menura superba, 311 * 

 Merganser, 297 



Mergus, foot of, 280 *; beak of, 282 * 

 Merostomata, 79, 1 

 Mesisenatides, 299 

 Mesite, Madagascar, 299 

 Metamerism in Vertebrates, 6, 7 

 Metamorphosis, of Amphioxus, 48; of 



tunicate, 53, 54 *; of lamprey, 96; of 



frog, 207, 208 *, 209 

 Metatheria, 345, 352-259; definition, 



352 

 Miastor, 195 

 Microcehus smithii, 379 * 

 Microchiroptera, 363-365 

 Micromeres, 42 

 Micropodii, 308 

 Microstomum, 11 

 Milvusictinius, 293 * 

 Moa, 287 

 Moles, pouched, 356; true, 360, 361 *, 



362 

 Moloch horridus, 250 *, 252 

 Mollosidas, 364 

 Mongoose, 366 

 Monitor, Cape, 250 *, 252, 253 



Monkeys, howler, 378, 381; spider, 378 

 Monodelphia, 345, 360-404; defini- 

 tion, 360 

 Monotremata, 345, 347-352 

 Moose, 390 

 Moray, 141 



Morula, of rabbit, 407 * 

 Mucous rope of Amphioxus, 37, 38 

 Mucous sacs, of myxinoids, 90 

 Mud-minnow, 142 

 Mud-puppy (see Necturus) 

 Miiller, Johannes, 64 

 Multituberculata, 340 

 Muskalunge, 142 

 Mustelidse, 368 

 Mustelus, 113 



Mycteria, foot of, 280 *; beak of, 282 * 

 Myliobatida;, 124, 125 

 Mylidbatis aquila, 124 * 

 Myhdon, 377 

 Myocommata, 42 

 Myomorpha, 373 

 Myotis lucifugus, 364 

 Myotomes, 42 

 Myrmeoobiidse, 354r-356 

 Myrmecobius fasciatus, 354, 355 *, 356 

 Myrmecophaga jubata, 374, 375 * 

 Myrmecophagidse, 374 

 Mystacoceti, 346 

 Myxine, 89 *, 90; eggs of, 164 * 

 Myxinidse, 106 

 Myxinoidea, 89 *, 90, 91 *, 92 



Naja tripudians, 256 *, 259 



Nannemys guttata, 238 



Narwhal, 402, 403 



Nasal apertures, in Squaltis, 114 



Nasal sacs, of Teleostomi, 128 



Naso-pituitary sac, 90, 92 



Necturus macvlalus, 192, 193 * 



Nemalichthys, 141 



Nemertean theory of vertebrate origin, 



82, 83 * 

 Neoceraiodus, 112, 155 *, 157, 166, 168 

 Neornithes, 278-323; N. Odontolc^, 



279, 280, 281; N. Ratita;, 279, 281- 



288; N. Carinata;, 279, 288-312 

 Neoteny (see Psedogenesis) 

 Nephridia, of Amphioxus, 41 *; of 



Squalus, 116; of fishes, 102 

 Nests, of lamprey, 95; of stickleback, 



144; of Amia, 134; of Hrjlafaber, 201; 



