Hemilastena, II, 54o. 
Hemisinus, II, 3i4. 
— Petenensis, II, 3i8. 
— ruginosa, II, 3i8. 
— ruginosus, II, 3i8, 673. 
— zoster, II, 3 18. 
Hemphillia, II, 684. 
Heterocyclüs Perroquini, II, 994. 
Heudeia, II, 375, 387, 388. 
HOLOSPIRA, Martens (emend.), I, 
318, 320, 322, 4oa, 4i6, 
699; II, 678, 682. 
— apiostoma, I, 4 06. 
— Berendti, II, 689. 
— Coahuilensis, VV. G. Binney, I, 
393,334. 
— cretacea , Pfeiffer, I, 393, 335. 
— Eiizabethæ, II, 658. 
— Gealei, H. Adams, I, 393, 333, 
337; II, 676. 
— Goldfussi, I, 319, 399, 393, 
337. 
— goniostoma, Pfeiffer, I, 393, 
328. 
— imbricata, Martens, I, 393, 
336, 338. 
— irregularis, I, 349. 
— microstoma, Pfeiffer, I, 393, 
337. 
INDEX ALPHABÉTIQUE. 
HOLOSPIRA Newcombiana, I, 3o4. 
— Pfeifferi, Menke, 1, 319, 320, 
323, 396, 339; II, 676. 
— Pilocerei, Pfeiffer, I, 393, 329, 
337, 338; II, 676. 
— polygyra, I, 4o5. 
— Remondi, Gabb (emend.), I, 
393, 325. 
— Rœmeri, I, 393, 337; II, 689. 
— teres, Menke, 1, 393, 327; II, 
676. 
— Tryoni, Pfeiffer, I, 319, 320, 
393, 331; II, 676, 689. 
Homalonï'x, I, 643, 644. 
Hvalimax, 1 , 644. 
Hyalina, I, i54. 
— bibneata, I, 167. 
— fuliginosa , 1 , 1 6 4 . 
— fulvoidea, I, 177. 
— lucubrata, I, 160, i63. 
— minuscula, I, 175. 
— Veracruzensis , I, 169. 
— Zonites, I, 157. 
HYALINIA, Agassiz (voyez Zonites), 
I, i5o, 154, 169, 179. 
Hybocvstis, II, i53, i54. 
Hydrobia, II, 110, 954, 957, 958, 
960, 961. 
I 
707 
Hydroria acuta, II, 970. 
— antlmacina, II, 966. 
— coronata. II, 9 65. 
— crystallina. II, 966. 
— Jamaicensis, II, 966. 
— ■ hyalina, II, 964. 
— Seemaui, II, 971 . 
— .spinifera, II, 9 65. 
— ulvæ. II, 957 . 
— ventrosa, II, 971. 
HYDROBIIDÆ, II, 109 , 111 , 253. 
Hydrobiinæ, II, 955. 
Hydrocena, II, 110 . 
Hygromia Berlanderiana, I, 956. 
— Berlandieriana , I, 956. 
— flavescens, I, 9 55. 
— griseola, I, 9 58. 
HYGROPHILES, II, 31. 
Hyria, II, 495 , 5o5, 5o6, 507 , 535, 
539 , ' 541 , 549 . 
Hyrianæ, II, 5o6, 54i, 549 . 
Hyridella, II, 5o6, 54 1 . 
Hyriopsis, II, 54o. 
IDESA, H. et A. Adams, II, 388,438. 
— microdina, II, 438. 
Incillaria, I, 190. 
Io,II, 3 io, 3 i 9,3 i 7, 3 i 8,393, 684. 
lo apis, II, 346. 
Iridea, II, 5o6, 54 1. 
Iridina, II, 5o5, 5o6, 507, 693. 
Iridinidæ, II, 5o6. 
Isidora , II, 3g , 55 , 89. 
Isthmia, I, 3i5. 
— ovata, 1, 3 16. 
Janella, I, 645. 
J 
I JuGA Schiedeana, II, 367. 
I JüLLIENIA ,11, 954. 
89. 
