534 
THE CHICAGO ACADEMY OF SCIENCES. 
INDEX. : 
New species and genera and new names are printed in SMALL CAPITALS; the 
page number indicating reference to a diagnosis is printed in italics. 
abyssicola, 28, 36. 
accelerata, 88, 89. 
Acella, 93, 108, 110, 
191, 198, 199, 347. 
acuminata, 55, 166, 167. 
actita, 274.027 Dsecoee 
ADAMSI, 393, 405. 
adelinz, 210, 211, 214, 220, 273, 408. 
alamosensis, I04. 
ALASKENSIS, 455. 
ALPENENSIS, 315, 316, 321, 322. 
alternata, 460. 
Amnicola, 21. 
ampla, 182, 222, 223, 389, 409, 416, 
417, 420, 421, 428, 440, 441, 450, 
452, 458-460. 
Amphipeplea, 121, 123, 125, 225. 
Amphipepleine, 125. 
Amphipeplide, 124. 
ampliata, 149. 
Ancylide, 124. 
Ancylus, 121. 
Ancylus fuscus, 197. 
parallelus, 198. | 
angulata, 402, 413, 416, 419, g2z, 423- 
425, 427. 
Anodonta grandis footiana, 25. 
Anodonta marginata, 25. - 
anticostiana, 95, 106, 107. 
1225 125-720, 

apicina, 19, 22, 52, 53, 104, 106,- 387, 
390, 397-399, 402, 406, 440, 442-450. 
Aplexa,.121. 
Aplexa hypnorum, 19, 54, 233, 240, 
Si2. 
appressa, 17, 19-21, 52) 53, 137, 141, 
144-159, 170, 180. 
arctica, 366, 373-376. 
Arion ater, 41. 
: hortensis, 41. 
aspirans, 204, 208, 209. 
ativuncula, 87. 
atkaensis, 457. 
atkinensis, 457. 
attenuata, 313, 327, 343, 353-355. 
Aucella piochii, 104. 
Auricula, 84, 123, 134. 
auricularia, 1, 2, 8, 9, 13, 15, 28, 39- 
41, 45-46, 51, 54, 55, 88, 178, 179, 
182, 411, 421. 
bakeri, z07, 108. 
barbadensis, 428, 431. 
bicolor, 149. 
binneyi, 52, 53, 387, 406, 407, 421, 432, 
439, 440-447, 450-455. 
Bithinia tentaculata, 41, 
BLATCHLEYI, 321, 322. 
bombycina, 462. 
bonnevillensis, 705, 106. 
bottnica, 150. 
brownil, 382, 383, 390, 391, 444. 
bryanti, 210, 211, 213. 
Buccinum glutinosum, 125. 
" palustre, 200, 298. 
5 truncatulum, 199, 200. 
Bulmmneay 222s. 25" 720) 
184, 199. 
bulimoides, 2, 27, 53, 209, 211-214, 
217, 220-224, 231, 233, 267, 396. 
Bulimus, 84. 
183, 
californica, 359, 360, 36r. 
Campeloma, 84, 247. 
decisa, 84, 466. 
Yi: multistriata, 111. 
caperata, 2, 5,16;.95 19) 20) 5221635 95: 
105, 214, 225-235, 240, 241, 246, 313, 
380, 390. 
Cardium edule, 28. 
“ rusticum, 28. 
Carinifex, 121, 128. 
CASSI, 221, 222, 264, 267. 
casta, 172, 174-176. 
catascopium, 4, 9, 21, 32, 33, 52, 55, 
88, 99, 105, 106, 109, 110, 127, 296, 
305, 313, 378, 379, 380, 381-408, 414, 
415, 427, 428, 431-433, 438, 440, 444, 
446-449, 458, 460. 
canadensis, 1, 415, 416, 425, 427, 430- 
434, 436, 437, 440. 
Cercaria furcata, 148. 
chalybea, 171-176, 
championi, 171, 175-177. 
