662 



INDEX. 



Gyreiicephala, 522. 

 Gyroceras, 333. 



HcBmatocrya, 3G0. 



HoBinatopus, 4S4. 



Hcematotherma, SfiO. 



Hag-flshes, 378, 379, 380, 381. 



Uaimeia, 125. 



Hair-worms, 176. 



Halcyomis, 507. 



Halicore, 542. 543. 



Haliormna, 61. 



Haliotidce, 314, 318. 



JFIaliotis, 318. 



HaUtheriwm, 612. 



Halterea, 250, 264. 



Ha/mites, 338. 



Hamster, 590. 



Hapale, (i02. 



Hapalidce, 602. 



Harpa, 317. 



Haustellata, 208 (see Epizoa). 



Hawks, 503. 



Heetocotylus, 325, 32S. 



Hedgehog, 521, 597. 



Helarctos, 578. 



Helianthoid Polypes, 116. 



HelicidcB, 317, 319. 



Helicoidea, 57. 



Helicostega, 57. 



^e^^a;, 319. 



IleUadotherium, 565, 614, 



Henielytra, 250, 260. 



Hemeristiay 273. 



fiemicartZwui, 307. 



Heminietabola {Insecfa), 254, 258. 



Beiniptera, 252 ; charauters of, 259. 



Heptatrema, 381. 



Hermit-crab, 231. 



Heron, 482, 483. 



Herpestes, 581. 



Heterocercal (tail of fishes), 871. 



Heterogeny, 37. 



JJeterovfiastiXy 76. 



Heteroinerat 273. 



Heteropha{ji, 469. 



lieteropoday 313 ; characters nf, 315 ; 

 shell of, 315; divisions of, 316; dis- 

 trihution of, in time, 336, 337. 



fleteroptera, 260. 



Uiixaprotodon, 614, 

 ■ Uimantopus, 484. 



HipparioUy 613. 



Hippobosca, 265- 



Hippoca/mpidai, 388. 



Hippocrepian Poij/zca, 284. 



Hippohyus, 614. 



Hippopotamidm, 556, 614. 



Jlippopotamus, 556, 614. 



Jiippurites, 306. 



11 ippU7'itidce, 306. 



Hlnulinea, 188; general cimracters of, 

 189, 190. 



Jlirundinidce, 500. 



JlolocephaU, 395 ; characters of, 396. 



Jlolocystis, 128, 139. 



llolometabolo (Insecta), 255, 264. ^ 



JIolo2}ty chilis, 403. 



Holostomata (GaHteropoda), 312, 313, 317. 



linlothuria, 1(50, 101, 162. 



Ilololhundm, 102. 



Holothuroidtay 143, 141 ; ehnraelcts of, 



160; families of, 162; distribution of, 

 in space, 162 ; in time, 165. 



Homocercal (tails of Fishes), 371. 



Homology, 17 ; serial, 17. 



Homomorphism, 18. 



Ilomoptera, 259. 



Honey-eater, 499. 



Hoopoe, 499. 



Horn-bill, 496. 



Horse, 514, 516. 655, 611 



Humming-birds, 499. 



Hunting- dog, 582. 



Hycena, 582, 616. 



Jiycenidm, 561. 



HyaUa, 321, 337. 



Byahadce, 321. 



Hyalochmtidcs, 122. 



UyaUnema, 67. 



Hyalonemadce, 122, 129. 



Bybodiis, 397. 



Hydatid.^ 168, 171. 



Hydatina, 181. 



Hydra, 26, 27, 28, SO, 81 ; structure of, 

 83 ; reproduction of, 84, 85 ; thread- 

 cells of, 80 ; development of, 85 ; dis- 

 tribution of, 112. 



Sydrachnidoe, 240. 



Hydractinia, gonophores of, 86, 89. 



Hydra-tuba, 30, 106, 107. , 



Hydrida^ S3. 



Hydrooaulus, 90. 



Hydroohm'us, 588. 



SydrocoT^sce, 260. 



Hydrocysts, 97. 



Hydroecium, 95, 96. 



Hydroida, characters and divisions of, 

 83 ; reproduction of, 86, 89 ; dislin- 

 guised from Polyzoa, 279, 280. 



Hydroid Zoophytes (see Hydroida). 



Hydrophidce, 434. 



HydrophilidoB, 257. 



Hydrophyllia, 95, 97. 



Hydrorhiza, 83. 



Hydrosoma, 81. 



Hydrotheca, 85, 90, 



Ilydrozoa, 79, 80, SI, 82; characters of, 

 80; terminology of, SI; divisions of, 

 8a; reproduction of, 86, 89; Oceanic, 

 93 ; distribution of, in space and time, 

 112, 113. 



Ilyla, 407, 414. 



Jiylobates, 605. 



BymenocariSf 234. 



Tlymenoptera, 256, 267, 2G8. 



Hyoid arch (Fishes), 366, 367. 



Ifyopotamus, 614. 



Ilyponome, 15S. 



Hypostonie, of Trilobites, 219. 



Hypsiprymnus, 531, 533. 



Ilyracoidea, 525; general charactera of, 

 5GS. 



Hyi-ax, 5G9. 



Ilystrlcidaiy 588. 



Ilystrix, 588. 



lanthina, 318. 



Ibis, 483. 



Ichneumon (/'rtfiecfd), 268. 



Iclithyodorulites, 385, 390. 404 



fchthyomorpha, 410. 



JckthyophUdra, 207, 209. 



IchlUyopskla, 360. 



