INDEX 



5 2 3 



Daulias luscinia, i 160. 



Day, iii ii 6. 



Day-Flies. See May-Flies. 



Dead-man's Fingers, i 477 (illust.). 

 Dean, iii 41. 



Death-Adders, ii 80; iv 339. 

 Death-feigning habit, ii 342-345. 



arachnids and insects, ii 345, 373- 



birds, ii 343-344. t374- 



mammals, ii 343. 



reptiles, ii 344~345- [224; 355- 



"Death-watches", i 379; iii 223- 



Decapoda (Cephalopoda), i 314-315; 

 iii 30-31. 



(Crustacea), i 410-412; ii 135-141, 

 337-338, 400-404, 469-470; iii 27-28, 

 169-172, 175, 365-368; iv 13-14- 



Deer, i 109, 110-112; ii 321, 367; iii 

 152; iv 142, 144-145, 346. 



Chinese water, i in. 



fallow, i in; iii 151 (illust.). 



mouse-. See Chevrotains. 



mule, iv 430. [142, 402. 



musk-, i IIO-IIT; iii 131 (illust.); iv 



red, i in; iv 144-145, 373-374- 



roe, i Ti2. 



spotted, ii 351-352. 



Virginian, iv 430. 



Defences of animals, i 17; ii 275- 



375- 



precautionary measures, ii 276, 277- 



33i- 



resistance, ii 276-277, 332-362. 



retreat, ii 277, 363-375. 



Degeneration, biological, i 298, 431, 



432; iii 420-421; iv 197, 197-199, 203. 

 DegU, i 132 (illust.). 



Delphinapterus leucas, iii 83; iv 

 Delphinidse, ii 26-29. [316-3*7- 

 Delphinus delphis, ii 27-28. 

 Dendrelaphis, iii 270. 

 Dendrocolaptidse, iii 463- 



DendrOCOpUS major, i 162; ii 58. 



minor, i 162. 



Dendrohyrax arborea. See Pro- 



cavia. 



Dendrolagus, ii 182. 



Lumholtzii, iii 258. 



Dendronotus arborescens, ii 296. 

 Dendrophis, iii 270. 

 Dendryphantes capitatus, iv 167. 

 Dental formulae, of mammals, i 36, 



67, 72, 78-79; ii 6, 7. 



Dentalium, i 338; iii 221-222, 412. 



indianorum, iv 323. 



vulgare, i 33 8 -339- 



Dentine, i 35, 102. 

 Derbyshire-neck, i 43- 

 Dermanyssus gallinse, iv 360. 

 Dermaptera, iii 282. 

 DermatOChelys. See Sphargis. 

 Dermatocoptes, iv 196. 

 Dermatophagus, iv 196. 

 Dermatoptic vision, iv 39-40. 

 Dermestes lardarius, ii 109, no; 

 Dermestidse, ii no. [iv 355. 



Dermis, i 25. See also Skin. 

 Descartes, i 203. 



Desman, Russian, ii 35; iii 71-72 



Spanish, iii 72. [(illust.). 



Desmans, i 83; ii 35; iii 71-72, 246. 

 Desmodus rufus, ii 39. [(illust.). 

 Desmognathus fuscus, iii 435 

 Desoria glacialis, i 384; ii 214. 



Development, i ii, 14, 18. See also 

 Life Histories and Metamorphosis. 



direct, iii 355. 



Development (Cent.} 



indirect, iii 355. 



influence of food-yolk on, iii 345-348. 



acorn-headed worm, iii 420-421. 



amphibians, i 62-63, 240-242, 249, 

 254, 256; ii 457-458; iii 434-443- 



animalcules, i 491, 493-494, 498 ; iii 

 3 I 7~325, 333-335; i y 206-207. 



annelids, iii 318, 329-330, 358-361. 



arachnids, i 387; iii 373-377. 



ascidians, iii 332, 421-422; iv 105- 



birds, i 151-152; iii 448-453. [106. 

 crustaceans, i 409; iii 362-369; iv 



197-199. 



echinoderms, iii 328, 354-357. 



fishes, i 60, 264, 279; iii 422-434. 



flat- worms, iii 329; iv 201205. 



insects, iii 377-404. 



king-crabs, iii 369. 



lancelet, iii 342, 344-345. 



mammals, iii 474-494. 



molluscs, iii 404-419. 



moss-polypes, iii 330-331; iv 104. 



myriapods, iii 370-373. 



nemertines, iii 419. 



peripatus, iii 370. 



reptiles, i 203, 209, 216; iii 443-448. 



sponges, i 485; iii 325-326, 341-342, 



thread-worms, iv 205-206. [343. 



zoophytes, i 471-472, 4?6, 478-479, 

 480, 481, 482; iii 327-328, 339-34 1, 

 349-353; iv 103-104. 



Devil's coach-horse, i 368 (illust); 



DeviS, iv 407. [ii 108. 



Dianthoecia albimacula, iv 86. 

 Diapheromera femorata, iii 379. 

 Diaphora mendica, ii 313. 

 Diaphragm. See Midriff. 

 Diatoms, ii 248; iv 72. 

 Dibranchiata. See Cuttle-Fishes. 

 Dickens, i 383; iv 408. 

 Dicotyles, iv 141-142. 



labiatus, iii 489; iv 334-336. 



torquatus, i 109; ii 233, 234; iii 149, 



Dicynodon, iv 468. [489. 



Didelphyidae. See Opossums. 



Didelphys azarse, iii 480. 



marsupialis, iii 255. 



murina, iii 479. 



Virginiana, i 138; iii 260. 



Didus ineptus, ii 369-370. 



Difflugia, i 489 (illust); ii 341; iii 6 

 Digby, Sir Kenelm, iv 320. [(illust.). 



Digestion, i 37-38; ii 1-3. 

 Digestive caeca, i 348. See also 



Caecum. 



cavity, i 34. 



glands, i 34, 36-37. 



Digestive organs, i 34-38. 



amphibians, i 240, 253; ii 194. 



annelids, i 427; ii 259. 



birds, i 146; ii 184. 



crustaceans, i 407; ii 136-137. 



echinoderms, i 452-453, 458; ii 413. 



fishes, i 261, 271-272; ii 450. 



insects, i 346-348. 



mammals, i 67. 



carnivorous, ii 7. 



herbivorous, ii 165, 167, 168-169, 



171, 172, 176. [233-234. 



omnivorous, i 34-38; ii 225, 226. 



molluscs, i 308, 332-333- 



nemertines, ii 391. 



reptiles, i 199-200, 207, 215, 230. 



siphon worms, ii 260. 



thread-worms, i 448. 



zoophytes, i 471, 473-474- 



Digestive-tube and Breathing, 



ii 382-383. 

 Digitigrade feet structure: 



biHs, iii 126. 



mammals, 86, 87; ii 5-6 (illust.); iii 

 134, 154-155, 157- 



Digits, i 24, 31-32. 



amphibians, i 238, 248, 250, 252; iii 

 48, 49, 121, 272, 288. 



birds, i 141, 146, 149, 152, 161, 162, 

 163, 164, 165, 166, 168, 170, 171, 173, 

 176, 179, 180, 185, 188; iii 58, 59, 61- 

 62, 65, 66, 126, 127, 128, 130, 153, 261, 

 263, 264-265, 266, 295, 299, 473. 



fishes, iii 119. 



mammals: 



flesh-eating, i 86, 90, 91, 92; iii 



76, 78-79, 80, 84, 154, 155, 156, 157, 



247. 

 gnawing, i 123, 125, 128, 133; iii 



74, 75, 194, 195, i9 6 , !97> 203, 205, 



252, 253. 

 hoofed, i 104-105, 106, 107, 108, 



no, 113-114, 120; iii 130, 137-138, 



139, 142-144, 147, 148, 149, 150, 152, 



153- 

 insect-eating, i 83, 86 ; iii 197- 



198, 202. [258-260. 

 pouched, iii 190, 191-192, 206, 



bats, i8i, 82; iii 244-245, 292, 293 



conies, i 104; iii 249. [294. 



edentates, i 136; iii 254, 256. 



elephants, i 102. 



lemurs, i 80; iii 241, 242, 243, 244. 



man and monkeys, i 24, 31-32, 

 7* 73, 77, 78 ; "i 158, 233-234, 237, 

 238, 240. 



reptiles, i 196-198, 205, 209, 213, 215, 

 218, 223, 225, 237; iii 54, 55, 122, 209, 

 268-269, 2 70, 286. 



Dingo, i 94; ii 343; iv 222. 

 Dinophilus, i 431. 

 Dinornis maximus, iv 476. 

 Dinornithidae, iv 428. 

 Dinosauria, iii 124: iv 469-470. 



Dinosaurs, armoured, iv 469. 470 



beast-footed, iv 469. [(illust.). 



bird-footed, iv 469-470 (illust). 



horned, iv 470. 



reptile-footed, iv 469. 

 Diodon, i 278; ii 334; iv 340. 



Diomedea exulans, i 183. 

 Dionsea muscipula, iv 69-70. 

 Diphyes, ii 161. 

 Diploblastica, i 467, 490, 491- 

 Diplonychus, iii 382. 



Diplopoda, i 396. See also Milli- 

 pedes, [(illust). 



Diplozoon paradoxum, iv 201-202 



Dipnoi, i 257, 264-266. See also 

 Lung- Fishes. 



Dipodidse, iii 192, 194-197. 

 Dipodomys Fhillipsi, iii 193-194. 

 Diprotodon, iv 474. 

 Dipsacus laciniatus, iv 92. 

 Diptera, i 351, 355-358; ii 119, 120- 



122, 2I5-2I6, 251, 314, 441-442, 462, 



467-468; iii 178, 289-290, 291, 311, 



313, 402-404; iv 127, 190-192, 349, 



DipUS jaculus, ii 319, 322. [351. 



Mauritanicus, iii 196. 



"Discontinuous distribution", 



iv 410-412, 429, 430. See also Dis- 

 tribution in space. 

 DlSCOphora. See Leeches. 



Distomum macrostomum, iv 202- 



203 (illust). 



