512 
Genera, 46, 52. 
Generic areas, 52, 53. 
Genetic affinity, 45. 
Geographical dist., 50. 
Geological strata, 118. 
Geomalacus, *296. 
Geomelania, *311. 
Geoteutihis, *168. 
Geotrochus, *289. 
Geovula, 304. 
Germanic region, 89. 
Gervillia, *418. 
Gibbula, *265. 
Gibbus, *291. 
Gizzard, 22. 
Glandina, 286, *292. 
Glaucomya, *477. 
_ Glauconella, 316. 
Glauconome, 477. 
Glaucus, *336. 
Globiconcha, *314. 
Globulus, *236. 
Glossodoris, *329. 
Glossus, 467. 
Glottella, 247. 
Glycimeris, 55, *498. 
Gnathodon, *478. 
Goldfussia, *469. 
Gomphoceras, *193. 
Gonambonites, 380. 
Gonatus, *168. 
Goniatites, *196. 
Gonioceras, 190. 
Goniodoris, *330. 
Goniomya, *497. 
Goniophora, 468. 
Goodallia, 464. 
Gouldia, *465. 
Grammysia, *497. 
Grateloupia, *474. 
Gresslya, *497. 
Growth of shell, 34. 
Gryphea, 35, *408. 
Gryphochiton, 284. 
Gryphus, 363. 
Guard, 173, 174. 
Gulf-weed banks, 64. 
Gundlachia, *303. 
Gymnodoris, *332. 
ye ey *350. 
ypidia, 317. 
Halia, *2Z0. 
Haliotide, *268. 
Haliotis, 24, 27,*268. 
Halobia, 417. 
Halopsyche, 350. 
Haminea, 316. 
Hamites, *201. 
Hamulina, 201. 
pe 55, 1226. 
arpula, 23 
Harveila, 78. 
Hastati, *1T4, 
Head, 42, 
Heart, 24, 42. 
Hectocotyle, 159—163, 
Hecuba, 485, 
Hielcion, 278. 
INDEX. 
Hlelicarion, 290. 
Helicella, *289. 
Helicerus, *178. 
Helicide, *288. 
Helicina, *300. 
Heiicina, 265. 
Helicoceras, *200. 
Helicocryptus, 253. 
Helicolimarz, 290. 
Heliconoides, 352. 
Helicophanta, 290. 
Helicophlegma, 344. 
Helicteres, 292. 
Hlelisiga, 290. 
Helix, 11, 14, 33, 35, 37, 
*288. 
Helix distribution, 87. 
Helminthochiton, 284. 
Hemicardium, *454. 
Hemicyclonosta, 469. 
Hemidoris, 328. 
. Hemimitra, 247. 
Hemipecten, *412. 
Hemiplacuna, 410. 
Hemupronites, 380. 
Hemisinus, *247. 
Hemithyris, 375. 
Hemitoma, *274. 
Heptabranchus, *329. 
Hermea, 338. 
Heteroceras, *200. 
Heterofusus, 352. 
Heterogangliata, 2. 
Heterophylli, 199. 
Heteroteuthis, 170. 
Flettangia, 457, 
Hexabranchus, *329. 
Hiantula, 273. 
Fiiatella, 461, 502. 
Hinge line, 401. 
Hinnites, *412. 
Hippagus, 472. 
Hipparionyz, 378. 
Hippochrenes, 212, 
Hippomya, *423. 
Hipponyx, 7, *278. 
Hippopodium, *471. 
Hippopus, *453. 
Hippurites, 32, *443, 
Hippuritide, *440, 
Fiivundinella, 319. 
Histioteuthis, *170. 
Holopea, *272. 
Holostomata, *234, 
Homoganeliata, 2. 
Homoiozoic belts, 54. 
Homologies of shell, 39. 
Homomya, *496. 
Hoplomytilus, *423. 
Hortolus, 189. 
Humphreyia, *503. 
Huronia, *191. 
Hyalea, *348. 
Hyaleide, *348, 
Hyalina, *252. 
Fyaloteuthis, 172. 
Hybernation, 39, 40. 
Hybocystis, *309 
Hybrids, 46. 
Hydatina, 318. 
Hydrobia, *256. 
Hydrocena, 307. 
Hyolites, 191. 
Hyperotis, 506. 
Hypobranchea, *325, 
Hypodema, 383. 
ypogea, 487. 
Hypostoma, *289. 
Hypothyris, 375. 
Hypotrema, *418. 
Hyria, *434, 
Hysterolites, 379. 
Tanthina 23, 31, *271. 
Icarus, *322. 
Ichthyosarcolites, 450. 
Idalia, *831. 
Idotea, 457. 
Imbricaria, *231. 
Imbricated operc., 207. 
Imperator, *264. 
Imperforate shells, 205. 
Impregnation of egg, 41. 
Incilaria, *296. 
Indian region, 99. 
Indo-Pacific province, 71. 
Infero-branchia, 312. 
Infundibulum, 264, 276. 
Ink bag, 157, 173. 
Inoceramus, 31, *419. 
Inoceramus, 491. 
Inoperculata, 285. 
Integro-pallialia, *436. 
to, 247. 
Iphigenia, *486. 
Ischnochiton, 2838. 
Jsidora, 301. : 
Ismenia, *368. 
Tsoarca, *427, 467. 
Isocardia, *466. 
Isocardia, 431. 
Isodonta, 478, 486. 
lsognomon, 418. 
Itieria, 314. 
Jamaica, shells of, 110, 
Jamaicia, 307. 
Jaminea, 239. 
Janella, *297. 
Janus, 337. 
Japanese snails, 101, 
Japonic province, 75. 
Jasonilla, 285. 
Javanese shells, 102, 
Jeffreysia, *256. 
Jouannetia, *506 
Kaloeeno, 175, 
Katharina, *284, 
Kellia, *459. 
Kingena, *368 
Kleinella, *317. 
Koninckia, *381, 
Kraussia, *367. 
Labio, 265. 
Lachesis, *229, 
Lacuna, 55, *265, 
