Acanthinula, x. 
aculeata, x., 11. 
lamellata, x. 
Acanthochites, 63. 
discrepans, xxiv., 63. 
fascicularis, xxiv., 63. 
var. gracilis, 63. 
Acanthochitide, xxiv. 
Achatina, 17. 
acicula, 17. 
Acicula, 49. 
lineata, xix., 49. 
Aciculidee, xix., 49. 
Aclis, xx. 
ascaris, 51. 
Gulsone, xx. 
supranitida, xx 
unica, xx., 52. 
Acmea, Xxili. an (a0); 
mitra, XXI1l. 
testudinalis, xxili., 61. 
virginea, xxiii., 60. 
Acmeide, xxiii., 60. 
Acme, 49. 
lineata, 49. 
Actzon, xii., 28. 
tornatilis, xii., 28. 
Actzonide, xii., 28. 
Adeorbiide, xvii., 42. 
Adeorbis, xvi, 42. 
subcarinata, xvii., 42, 
Folidide, 27. 
fKolis, 27. 
Landsburghi, 27. 
papillosa, 27. 
Agriolimax, vii. 
Akera, xiii., 29. 
bullata, Xdil., 29; 
LN DEX: 
Akerida, xiii., 29. 
Alexia, xi., 19. 
bidentata, 19. 
var. alba, 19. 
denticulata, 1 19. 
Amalia, viii., 
gagates, 3. 
var. plumbea, 3. 
marginata, 3. 
Amauropsis, xix. 
Amphidesma. 
castaneum, XXXil. 
Amphineura, XX1V., 62. 
Amphipeplea, x1., 23, 
glutinosa, 23. 
Aimphisphyra, 28. 
hyalina, 28. 
Anodonta, 71. 
cygnea, 71. 
var. rostrata, 71. 
Anaspidea, xiii., 31. 
Anatinacea, xxvi., xxviii. 
XXXll. 
Anatinids, xxvi., xxviii. 
XX, O43 
Ancula, a, 
cristata, 27. 
Ancylus, xi. 
fluviatilis, 20. 
var. albida, 20. 
», capuloides, 20. 
», gibbosa, 20. 
lacustris, 20. 
oblongus, 20. 
Anomia, xxviil., 66. 
ephippium, 66. 
var. aculeata, 66. 
», Ssquamula, 66. 
patelliformis, 67. 
undulata, 67. 
Anomiide, xxvi., xxviii. 
Aplexa, xi. 
ypnorum, 26. 
Aplysia, xii. 
hybrida, 31. 
punctata, xui., 31, 
