379 
Crop of Insects, 160; of Birds, 283. 
- Cross-bill, $01, 
Crossfish, 19. 
Crotalide, 28, 267. 
Crotalus, 267. 
Crow, 24, 289, 301. 
Crustacea, 20, 129, 187 ; general char- 
acters of, 138, ef seq. 
Ctenoid Scales of Fishes, 227, 228. 
Ctenophora, 18, 91, 92; general charac- 
ters of, 100, et seq. 
Ctenophores, 101. 
Cuckoo, 24, 289, 299. 
Cuculidee, 24, 299, 
Culex, 21, 171. 
Curassow, 297. 
Curculio, 176. 
Curlew, 289, 292, 294. 
Cursores, 24, 289, 294. 
Cushion Star, 19. 
Cuticle of Infusoria, 48. ' 
Cuttle-fishes, 22, 205, 207, 210. 
Cuvieria, 208. 
Cyamus, 20, 148, 
Cyanea, 85, 
Cyathaxonia, 94. 
Cyclas, 195. 
Cycloid Scales of Fishes, 227, 298. 
Cyclolabride, 242. 
Cyclops, 20, 146. 
Cydippe, 101. 
Cygnide, 291. 
Cynocephalus, 25. 
Cynthia, 188. 
Cyprinide, 241. 
Cypris, 20, 146. 
Cypselida, 24, 303. 
Cystic Worms, 118, et seq. 
Cystoidea, 19, 104, 114, 
Daphnia, 20, 146. 
Darters (Birds), 292. 
Dasypodide, 24, 318. 
Dasyprocta, 337. 
Dasyurus, 24, 317. 
Dead-men’s Fingers, 18, 97. 
Decapoda (Crustacea), 139; (Cephalo- 
poda), 211. 
Deer, 324, 327, 
Deinosauria, 23, 280. 
Delphinidee, 24, 322. 
Delphinus, 321. 
Dendrophyltia, 99. 
Dental formula, 308, 309. 
Dentirostres, 302. 
Desmidice, 5. 
Diatomacee, 5, 
Dibranchiata, 207, 210. 
Dicotyles, 325. 
Dicynodon, 23. 
Didelphide, 24, 316, 317. 
Hidelphys, 317. 
ifflugia, 81, 84, 38, 52. 
Digitigrada, 333, 835, 
Diphosia, 72, 73. 
Diphyes, 17. 
Diplograpsus, 88. 
INDEX, 
Dipnoi, 23, 235; general characters of, 
245, et seq. 
Dipodide, 338. 
Diptera, 21,171. 
Discophora (Meduse), 17, 62 ; general 
characters of, 79 ; (Leeches), 181. 
Discorbina, 36, 87, 38, 53. 
Distal, 60. 
Distoma, 19, 121. 
Divers (Birds), 291. 
Dodo, 298. 
Dog, 25, 831, 335, 
Dog-fish, 22, 245, 
Dolphin, 24, 307, 312, 320, 322. 
Doris, 22, 201. 
Dormice, 338. 
Dorsal vessel of Insects, 161. 
Dorylaimus, 124, 
Doves, 298. 
Draco, 270, 275. 
Dragon-flies, 20, 168, 
Dromaius, 24, 295. 
Dromedary, 327, 
Duck, 28, 289, 291, 292. 
Duck-mole, 24, 314, 315. 
Dugong, 24, 319, 320. 
HaGue, 24, 304. 
Karthworms, 19. 
Echidna, 24, 314, 315. 
Echinodermata, 18,103; general char- 
acters of, 108, et seq. 
Echinoidea, 19, 104 ; general characters 
of, 105, ef seq.; aquiferous system of 
107; development of, 108. 
Echinorhynchus, 19, 128. 
Echinus, 101 ; anatomy of, 105, et seq. 
Ectocyst, 184. 
FEctoderm, 54, 55. 
Edentata, 24, 313; general characters 
of, 317, et seq. 
Fels, 22, 241. 
Elaps, 268. 
Elasmobranchii, 286 ; general characters 
of, 244 ; sub-orders of, 245. 
Elephant, 25, 330, 331. 
Elk, 25, 827. 
Elytra, 176. 
Emeu, 24, 289, 294, 295, 
Emydide, 23, 263. 
Emys, 262. 
Encrinus, 18. 
Endocyst, 184, 
Endoderm, 54, 55. 
Entomostraca, 146, 
Entozoa, 117. 
Eozoon, 40. 
Epetra, 20. 
Ephemeridce, 21, 168, 
Epistylis. 48, 50, 53. 
Equide, 25, 324, 
Equus, 324. 
Erinaceide, 25, 340, 
Erinaceus, 340, 341. 
Ermine, 334. 
Errantia, 19, 184, 
_ Esocide, 241. 
