IIemilastena, II, 54o. 
Heiuisixds, II, 3i4. 
— Petenensis, II, 3i8. 
— ruginosa, II, 3i8. 
— ruginosus, II, 3i8, 673. 
— zoster, II, 3 18. 
Hemphillia, II, 684. 
Heterocyclus Perroquini , II, ag4. 
Heideia, II, 376, 387, 388. 
HOLOSPIRA, Marlens (emend.), I, 
318, 320, 322, 4oa, 4i6, 
699; II, 678, 682. 
— apiostoma, I, 4o6. 
— Berendti, Il , 682. 
— Coahuilensis, W. G. Binney, I, 
3a3, 334. 
— cretacea, Pfeiffer, I, 3a3, 335. 
— Elizabethæ, II, 658. 
— Gealei, H. Adams, I, 323, 333, 
337; II, 676. 
— Goldfnssi, I, 319, 322, 323, 
33 7 . 
— goniostoma, Pfeiffer, I, 3a3, 
328. 
— imbricata, Marlens, 1, 3a3, 
336, 338. 
— irregularis, I, 34 g. 
— microstoma, Pfeiffer, I, 3a3, 
33 7 . 
IDESA, H. et A. Adams, II, 388 , 438. 
— microdina, II, 438. 
Incillaria, I, 190. 
Io, II, 3io, 3i 2 , 317 , 3i8 , 3 ü3, 684. 
Janella, I, 645. 
INDEX ALPHABÉTIQUE. 
HOLOSPIRA Newcombiana , I, 3o4. 
— Pfeifferi , Menke , 1 , 3 1 9 , 320 , 
323, 326, 33a; 11, 676. 
— Pilocerei, Pfeiffer, I, 3a3, 329, 
33 7 , 338; II, 676. 
— polygyra, I, 4o5. 
— Remondi, Gabb (emend.), I, 
3a3, 325. 
— Rœmeri, I, 323, 337; II, 682. 
— teres, Menke, 1, 3a3, 327; II, 
676. 
— Tryoni, Pfeiffer, I, 319, 320, 
3a3, 331; II, 676, 682. 
Homalonyx, I, 643, 644. 
Hyalimax, I, 644. 
Hyalina, I, 1 54. 
— bilineala, I, 167. 
— fuliginosa, I, i64. 
— fulvoidea, I, 177. 
— lucubrata, I, 160, i63. 
— minuscula, I, 175. 
— Veracrnzensis , 1 , 1 5q. 
— Zonites, I, 157. 
HYALINIA, Agassiz (voyez Zonites ), 
I, i5o, 154, 169, 172. 
Hybocystis, II, i53, i54. 
Hydrobia, II, no, a54, 957, a58, 
260, 261. 
I 
707 
Hidroria acuta, II, 270 . 
— anthracina, II, 266 . 
— corouata, II, 2 65. 
— crystallina, II, 266 . 
— Jamaicensis, II, 266 . 
— hyalina, II, 26 4. 
— Seemani, II, 271 . 
— spinifera, II, 265 . 
— ulvæ, II, 257 . 
— ventrosa , II, 271 . 
HYDROBIIDÆ, II, 109 , 111 , 253. 
Hydrobiinæ , II, a55. 
Hydrocena, II, ito. 
Hygromia Berlanderiana, I, 2 5 6. 
— • Berlandieriana, I, a56. 
— flavescens, 1, 255. 
— griseola, I, 258. 
HYGROPHILES, II, 31. 
Hyria, II, 495 , 5o5 , 5o6 , 507 , 535 , 
53g, 54 1 , 549 . 
Hyriahæ , II, 5o6, 54i, 5 4 9 . 
Hykidella, II, 5o6, 54 1 . 
IIyriopsis, II, 54 o. 
Io apis, II, 346. 
Iridea, II, 5o6, 54 1 . 
Iridinidæ, II, 5o6. 
Isidora, II, 32, 55 , 82 
Iridina, II, 5o5, 5o6, 507 , 6a3. 
Istuhia, I, 3 1 5. 
— ovata, I, 3 16 . 
J 
| Juga Schiedeana, II, 367. 
! Julliema, II, 254. 
«y. 
♦ 
