G93 
Auricula Jiiclæ, IT, ü, kj. 
— Midæ, II, 2 , 1 4 , 19. 
— ovula, II, 28. 
Auriculacea, II, h. 11. 
IIaicalia , II , 1 55 , 278. 
Baicaliinæ , II, 278. 
Baikalia, II, 278. 
Balanocochlis , II, 809, 811. 
Balea Taylori, I, 80/1. 
Bariosta, II, 54 o. 
Bartletia, II, /195. 
BARYNAIAS, Crosse et Fischer, II, 
557 , 619 . 
Basistoma, II. 81 5 . 
Bathvojiphalus, II, 60. 
Batissa, II, 628, 629, 680. 
Benedictia, II, 254 . 
BERENDTIA, Grosse et Fisclier, I, 
300 , 4o2, 699; II, 681. 
— Taylori, Pfeiffer, I, 301 , 304 , 
35 o; II, 679. 
BERENDTINÆ, I, 300 . 
Binneya, I, 198; II, 678. 
— notahilis, I, 196. 
Bithinella, II, 219, 254 , 287, 288, 
261. 
Bitiiivia, II, 219, 288, 254 , 274. 
— tentaculata, II, 288, 298. 
BLAUNERIA, Shuttlewoith , II, 3 , 
5 , 6 , 8. 
INDEX ALPHABÉTIQUE. 
AURICULIDÆ, II, 1 . 
AURICULINÆ, I, 5 , 6. 
Aximedia, II, 5.89. 
B 
BLAUNERIA gracilis, II, 5 , 7, 9. 
— heteroclita, Montagu, II, 5 , 9 , 
672. 
— Leonardi, II, 9. 
— pellucida, II, 7, 9. 
Bostrichocextrcm , II, 682. 
Bostryx, I, 462. 
Bourciehia, II, 887, 889, 891. 
BRACHYANODON, Crosse et Fi- 
scher, II, 517 , 518 . 
BrACHYPODELLA , I, 895. 
— filicosta, I, 352 . 
Braciiypus costatus, I, 898. 
BRACHYSPIRA, Pfeiffer, 1 , 647, 
654 . 
— Salleana, T, ü66. 
Bradybæxa pisum, I, 287. 
Bra^chikera, II, 109. 
Broxdelia, II, 3 i, 85 . 
Buccixum acicula, I, 583 . 
— zehra, I, 426 , 44 i. 
Buchanania, I, 686. 
Bulimiformes, I, 6 o 5 . 
Bülijiinus detritus, I, 462. 
— Hohenackeri, I, 462. 
— Proteus, I, 507. 
BULIMNÆA, Haldeman, I, 46 , 51 . 
Axina Guillarmodi, I, 296. 
Aylacostoma , 11 , 8 i 3 , 821. 
Azeca, I, 588 , 585 . 
BULIMULIDÆ, I, 461 , 699. 
Bulimulus, Bisso, I, 46 1. 
BULIMULUS, Leach, I, 461 , 464 , 
471 , 578, 699; II, 669, 670, 
671, 677, 678, 679, 682. 
— alternans, Beck, 1 , 478, 477, 
500 . 
— alternatus, Say, I, 463 , 468 , 
475, 561 , 564 , 567; II, 669, 
680. 
— Alloperuvianus , I, 609, 690. 
— Artemisia, W. G. Biiiney, I, 
474, 557 , 559; II, 680. 
— attenuatus, Pfeiffer, I, 491 , 
498. 
— aureolus, I, 463 , 525 . 
— aurifluus, Pfeiffer, 1 , 499 , 536 . 
— auris-leporis , I, 874. 
— Bahamensis, I, 468 , 465 . 
— Baileyi, U, 680. 
— Berendti, Pfeiffer, I, 553 , 554 ; 
II, 674. 
— Botterii, Crosse et Fischer, 1 , 
487 . 
— Bryanti, II, 680. 
— Californicus, II, 680. 
— castus, Pfeiffer, 1 , 485 . 
— Chaperi, Grosse et Fischer, II. 
657, 666. 
— Chiapasensis, Pfeiffer, I, 483 . 
— confinis, I, 568 . 
— coriaceus, Pfeiffer, 1 , 552 , 554 . 
— corneus, Sowerhy, I, 468,474, 
548 , 554 . 
— cucullus, Morelel, I, 5 o 5 . 
519 . 
— Guernavacensis, Crosse et Fi- 
scher, I, 474, 532 ; II, 676. 
— dealbatus, Say, I, 463 , 465 , 
565 , 566 ; II, 669. 
— Delattrei, Pfeiffer (emend.), I, 
