INDEX. 



69. 



Graculavus, 534. 



Grallatores, 500 ; characters of, 507. 



Grantia, 74. 



Graphularia, 152. 



Graptolitidce, characters of, 120 ; distribu- 

 tion of, in time, 124. 



Greenland Whale, 573. 



Gregarina, 50. 



Gregarinidce, 50 ; reproduction of, 51. 



Griffithides, 253. 



Grison, 610. 



Gromia, 58. 



Gromida, 63. 



Growth, 3, 26 ; correlation of, 19. 



Gruidce, 509. 



Grus, 509. 



Gryllina, 280. 



Guard, of Belemnite, 353, 358. 



Guinea-fowl, 516. 



Guinea-pig, 619. 



Guinea- worm, 196. 



Gulo, 610. 



Guynia, 151. 



Gymnochroa, 91. 



Gymnodontidce, 412. 



Gymnohpmata, 306. 



Gymnophiona, 434. 



Gymnophthalmata (Medusidce)-, 95, 110, 

 120. 



Gymnosomata, 343. 



Gymnotus, 408. 



Gynophores, 108. 



Gypaetos, 531. 



Gyrencephala, 550. 



Gyroceras, 356. 



Jlfpmatocrya, 384. 

 JI(f,matopus, 511. 

 HfEmatotherma, 384. 

 Hag-fishes, 402, 403, 404, 4C5. 

 Haimeia, 137. 

 Hair-worms, 194. 

 Halcyornis, 535. 

 Halicore, 570, 571. 

 Haliomma, 67. 

 Haliotida, 836, 340. 

 Haliotis. 346. 

 Halitherium, 644. 

 Ilalteres, 269, 284. 

 Ha mites, 360. 

 Hamster, 621. 

 Hapale, 633. 

 Hapalidos, 633, 

 Haplophyllia, 151. 

 Harpa, 339. 



Haustellata, 226 (see Epizoa). 

 Hawks, 530. 

 Hectocotylus, 347, 351. 

 Hedgehog, 549, 628. 

 Helarctos, 609. 

 Helianthoid Polypes, 127. 

 Hdicid<K, 339, 341. 

 Helicoidea, 63. 

 ' Hdicosttfla. 63. 

 #eZiX 341. 



Hdladotherium, 595, 646, 650. 

 Hemelytra, 269, 279. 

 Hemeristia, 292. 

 Hemicardium, 328. 

 Hemimetabola, (Insecta), 274, 278. 

 Hemiptera, 271 ; characters of, 278. 

 Heptatrema, 405. 



Hermit-crab, 249. 

 Heron, 509, 510 

 Jlerpestes, 612. 

 Hesperornis, 534. 



Heterocercal (tail of Fishes), 394, 395. 

 Heterogeny, 38. 

 Heteromastix, 83. - 

 Heteromera, 292. 

 Herterophagi, 496. 



Jleteropoda, 335 ; characters of, 337 ; shell 

 of, ?'&. ; divisions of, 338 ; distribution of, 

 in time, 359. 

 ffeteroptertt, 279. 

 Hexaprotodon, 645. 

 Himantopus, 511. 

 Hipparion, 585, 644. 

 Hippobosca, 285. 

 f/ippocampidce, 412. 

 Hippocrepian Polyzoa, 303. 

 Hippohyus, 645. 

 Hippopotamidce, 5S6, 645. 

 Hippopotamus, 586, 645. 

 Hippurites, 327. 

 Hippuritidce, 327, 359. 

 Hirudinea, 206 ; general characters of, 



207, 208. 



Hirundinidce, 527. 



HolocephdLi, 420; characters of, t'6. 421. 

 Holocystis, 140, 181. 

 Holometabola (Insecta), 274, 283. 



Holoptychius, 428. 



Holostomata (Gasteropoda), 334, 335, 339. 



Holothuria, 178, 179. 

 Holothuridce, 180. 



Ilolothuroidea, 156, 157; characters of, 

 177, 179 ; families of, 180 ; distribution 

 of, in space, i&. ; in time, 183. 



Holtenia, 74. 



Homocercal (tails of Fishes), 394, 395. 



Homology, 17 ; serial, 18. 



Homomorphism, 18. 



Homoptera, 279. 



Honey-eater, 526, 527. 



Hoopoe, 526. 



Horn-bill, 523, 524. 



Horse, 542, 544, 584, 644. 



Humming birds, 526. 



Hunting-dog, 613. i 



Hyana, 612, 648. 



Hycenida, 612. 



Hyalea, 343, 360. 



Hyaleadce, 343. 



HyalochceUdce, 133. 



Hyalonema, 74. 



Hyalonemadce, 133, 141. 



Hybodus, 422. 



Hydatids, 186, 189. 



Hydatina, 199. 



Zfydra, 27, 28, 29, 88, 89 ; structure of, 

 91 ; reproduction of, 91 ; thread-cells 

 of, 88 ; development of, 93 ; distribu- 

 tion of, 123. 



Hydrachna, 259. 



Hydrachnidce, 260. 



Hydractinia, gonophores of, 94, 96. 



Hydra-tuba, 31, 116, 117. 



Hydrida, 91. 



Hydrocaulus, 99. 



Hydrocharus, 619. 



Hydrocorisce, 279. 



Hydrocysts, 107. 



Hydrcecium, 105, 1C6. 



