INDEX. 



665 



iteduaidce, 100, 101; Rtructure of, 101; 

 exact nature of, 102, IDS. 



Megaceros, S64, 614. 



Megaderma, 595. 



Megalonyx, 611, 618. 



Megalosaurus, 451. 



Megalotrocka, 180. 



MegapodidcE, 490. 



Mrgaptera, 548. 



MegatheriMm, 611, 612. 



Melania, 317. 



Melaniadce, 813, 317. 



MeUagrU, 489. 



Meledgrince, 489. 



JV/efes, S79. 



Meticerla, 180, 181, 183 



Metidce, 579. 



Meliphagidis, 499. 



JI/ei2i«ora, 580. 



Melohesm, 58. 



Meinl>raiia nictitans (of Birds), 470 ; of 

 Mammals, 470, 521. 



ilfemoftrancftjts, 410, 411. 



JlfcTM^oTna, 410, 411, 412. 



Mentimi, 251. 



MephUig, 580. 



Mergulits, 476. 



JWeriones, 591. 



M&ropidce, 500. 



A/eros(onM«6(, 215; characters and divi- 

 sions ot;221 ; distribution of, in time, 234. 



Maruiidce, 498, 499. 



Marycotherlwm, 618. 



Mesenteries (of Aolinozoa), 114, 116, 118, 

 121, 183. 



Mesopodium, 309. 



Mesothorax, 249. 



Metapodium, 309. 



Metasoma, 322, 331. 



Metamorpliosis,35;ofJfyWapo(Za,246;of/7i- 

 8e(ita,25i; incomplctu.2.')5; G0)npiete,255. 



Metastoma, of Lobster, 2o6 ; ol Eurypter- 

 ida, 223. 



Metathorax, 249. 



Sfiamia, 273. 



MicroconchuSy 198. 



Microlestes, 60S, 609, CIO. 



lUiliola, 54. 



Miltnlida^ 56. * 



MiUeporidcey 140. 



Millipedes, 245, 247. 



Mimicry, 18. 



Mites, 240. 



Jtitra, 317. 



Modeeria, 102. 



Modiola, 306. 



Mole, 512, 515, 521, 596. 



Molgula, 290. 



Ifolhtsca, 16, 274 ; general characters of, 

 274-27S; digestive system of, 274; cir- 

 culatory system of, 275; respiratory 

 organs of, 275 ; nervous system of, 270 ; 

 sense-organs of, 270; reproduction of, 

 276 ; slroU of, 276-278 ; divisions ol', 278; 

 distribution of, in time, 298, 330. 



Mnlhisca Proper, 278; cli.irncters of, 300 ; 

 divisions of, 300; distribution of, in 

 time, 336-338. 



iroUuscnida, 273 ; characters and divisions 

 of, 279; distribution of. In space, 297; 

 in time, 29S. 

 Molothrus, 493. 

 ilonuihts, 501. 



Monads, 37, 38. 



Monera, characters of, 49. 



Monitor, 439. 



Monlieys, 613, 514, 520, 526, 098. 



Monodelphiaf 523. 



■Morwdon, 551. 



Monomsrosomata, 238, 239. 



MoTiomyaria, 305. 



Monostega, 57. 



MonuthataTnia, 55. 



Monotremata, 511, 512, 615, 520, 622, 523, 



524; general characters of, 527 ; distribu- 



tiou of, in space, 528; in time, 609. 

 Mopsea, 128, 139. 

 Morphology, 12. 

 Morse, 576. 

 Mosasaurus, 441, 442. 

 Moschidoe, 661, 562. 

 Moschus, 562. 

 Moiacillince, 499. 

 Mother-of-pearl, 277. 

 Moth,s, 206, 267. 

 Mud-fish, 373, 374, 379, 399. 

 Mv^ilidce, 387. . 

 MuUeria, 306. 

 Multivalve shells, 277, 313. 

 Murcenidce, 384. 

 Murchisonia, 318. 

 Mwrex, 317. 

 Muricidce, 313, 317. 

 Muridce, 689, 690. 

 Mus, 690. 

 Musca, 265. 

 MitscicapidoB, 498. 

 Musk-deer. 561, 662. 

 Musk-ox, 668. 

 Mustela, 530. 

 MustelidcB, 580. 

 MuHlata, 542. 

 Mya, 302, 305, 307. 

 Myacidce, 306, 307. 

 Mycetes, 602, 603. 

 Mylwbatig, 399. 

 Mylodon, til, 618. 

 Myochama, 307. 

 Myodes, 690. 

 Myopotamus, 689. 

 Myozidoe, 591. 

 Myoxus, 591. 

 Myriapoda, 20O; general characteis of, 



246 ; development of, 246 ; distribution 



of, in time, 247. 

 Myrmecohms, 535, 536. 

 Myrmecophaga, 517, 540. 

 JHyrmecophagidcBf 540. 

 Mymnelao, 261. 

 Mysis, 227. 

 MytilidcB, 305, 306. 

 Mytihis, 306, 300. 

 Myxine, 379, 381. 

 Myxinidce, 378, 381. 

 Myxinoids, 374, 379. 



Wacrrous shells, 277. 



Naididce, 191, 192. 



JVais, 192. 



J/aja, 432, 4.13, 434. 



Narwhal, 551. 



Jiafsa, 317. 



Noma, 670. 



JVa(a(ore«, 473; general ch.iractersor,474. 



Matheles, 441. 



Hatica, 317. 



