INDEX. 



Lingula, 271, 275, 276, 277. 



Lingulidce, 274, 275. 



Lion, 531, 539, 540. 



Lissencephala, 484. 



Lithobius, 232. 



Lithocysts, 99, 104. 



Lithodomi, 283. 



Lithornis, 469. i 



Littorina, 291, 295. 



Littorinidce, 292, 295. 



Lituites, 310, 312. 



Lituolida, 54. 



Liver-fluke, 165. 



Lizards, 408-411. 



Llama, 520, 521. 



Lobster, morphology of, 193-198 ; general 

 anatomy of, 214-217. 



Lob-worm, 187, 189. 



Loculi, of shell of Foraminifera, 50 ; of 

 Corals, 115. 



Locustina, 244. 



Loligo, 306, 311. 



Longipennatce, 445. 



Longirostres, 448, 450. 



Lophiidce, 363. 



Lophobranchii, 363. 



Lophopea, 265. 



Lophopore, 263, 2(55. 



Lophopus, 261, 262. 



Lophyropoda, 204. 



Loricata, 395. 



Love-bird, 458. 



Loxiadce, 460, 461. 



Lucernaria, 100. 



Lucernariadce, 99, 100. 



Lucernarida, 78; general characters of, 

 99; umbrella of, 99; divisions of, 99; 

 development of, 101 ; structure of re- 

 productive zooids of, 103, 104. 



Lucina, 285. 



Lucinidoe, 284, 285. 



Luidia, 145. 



Lumbricidce, 182. 



Lumbricus, 183. 



Zwtra, 537. 



Lutraria, 285. 



Lyencephala, 484. 



Lynx, 541. 



MACACUS, 556. 



Maccaw, 458. 



Macellodon, 413. 



Machairodus, 567. 



Maclurea, 296, 313. 



Macrauchenia, 569. 



Macrobiotidce, 225. 



Macrodactyli, 448. 



Macropodidce, 493. 



Macrospondylus, 415. 



Macrotherium, 564. 



Macrura, 214; characters of, 214-217. 



Mactra, 285. 



Mactridce, 284, 285. 



Madreporidce, 134. 



Madreporiform tubercle of Echinodermata, 

 137; of Echinoidea, 139 ; of Asteroidea, 

 145 ; of Ophiuroidea, 147 ; of Holothur- 

 oidea, 154. 



Malacodermata (Zoantharia), 111, 129. 



Malacopteri, 360. 



Malacopterygii, 358. 



Malacostraca, 198; characters of, 211. 



Mallophaga, 242. 



Malpighian tubes, of Insects, 237. 



Mammalia, 337, 338; general characters 

 of, 471-483 ; osteology of, 472-480 ; teeth 

 of, 479, 480 ; digestive system of, 481 ; 

 circulatory system of, 481 ; respiratory 

 system of, 481 ; nervous system of, 482; 

 reproductive system of, 482; integu- 

 mentary system of, 483 ; primary di- 

 visions of, 484, 485 ; orders of, 484-486 ; 

 distribution of, in time, 559-570. 



Mammoth, 528, 529, 567. 



Manatee, 472, 502, 503. 



Manatidte, 503. 



Manatus, 503. 



Mandibles, of Lobster, 196; of Arachnida, 

 222; of Myriapoda, 232 ; of Insecta, 235, 

 236 ; of Cephalopoda, 300, 308; of Verte- 

 brates, 330. 



Manidce, 501. 



Jfanis, 479, 483, 498, 501. 



Mantle, of Tunicata, 266 ; of Brachiopoda, 

 272 ; of Lamellibranchiata, 280 ; of Gas- 

 teropoda, 287 ; of Cephalopoda, 299 ; of 

 Nautilus, 308. 



Manubrium, 82, 96. 



Marginal bodies, of Medusae, 96 ; of Z,- 

 cernarida, 99, 104. 



Marginella, 294. 



Marmoset, 554. 



Marmot, 546. 



Marsipobranchii, general characters of, 

 355-357; families of, 355; distribution 

 of, in time, 378. 



Marsupial bones, 477, 489, 492. 



Marsupialia, 484, 485, 486 ; general char- 

 acters of, 491 ; families of, 492-497 ; dis- 

 tribution of, in space, 491 ; in time, 560. 



Marsupites, 156. 



Mastax, 173. 



Mastodon, 527, 529, 566. 



Maxillae, of Lobster, 196; of Arachnida, 

 222 ; of Insecta, 236. 



Maxillipedes, of Lobster, 196 ; of Centi- 

 pedes, 232. 



May-flies, 244. 



Meandrina, 119. 



Measles, of Pig, 163 ; of Ox, 163. 



Medusidce, 95-99 ; structure of, 96 ; exact 

 nature of, 97, 98. 



Megaceros, 523, 565. 



Megaderma, 549. 



Megalonyx, 563, 569. 



Megalosaurus, 421. 



Megalotrocha, 173. 



Megaptera, 508. 



Megatherium, 563, 569. 



Melania, 295. 



Melaniadce, 292, 295. 



Meleagris, 454. 



Meleagrince, 454. 



Meles, 536. 



Melicerta, 173, 174, 175. 



Melidce, 536. 



Meliphagidce, 462. 



Mellivora, 536. 



Membrana nictitans (of Birds), 439; of 

 Mammals, 483. 



Menobranchus, 385, 386. 



Menopoma, 385, 386, 392. 



Mentum, 236. 



Mephitis, 537. 



