OF NORTH AMERICA. 



535 



Charydrobia stachei, 90, 91. 



Chilina, 121. 



Chironemus, 41. 



Choanomphalus, 128. 



Circinaria vancouverensis, 160. 



clam my s, 150. 



coarctata, 172-174. 



cockerelli, 1, 40, 209, 211, 213, 217- 



222. 



cochlea, 134. 

 columella, 1, 2, 6, 9, 21, 50, 110, 158, 



162, 163, 164, 165, 167, 169-177, 320, 



332, 382, 464. 

 columellaris, 165, 167. 

 compactilis, 94. 

 compressa, 164. 

 conidea, 466. 

 consortis, 87, 88. 



contracta, 89, 108, 432, 433, 434, 435. 

 contracosta, 103. 

 cornea, 382, 383, 391. 

 corrugata, 466. 

 corvus, 302, 314. 

 Costella, 458. 



crystalensis, 334, 335, 337, 340. 

 cubensis, 100, 196, 202, 203, 204, 205- 



209, 213, 216-219, 222, 224, 225, 227, 



231-237, 240-242, 257, 262, 369. 

 curta, 203, 243, 244, 247, 248. 

 Cyclemis, 467. 



minutissima, 467. 

 olivacea, 467. 

 Cyclolimnsea, 123, 125. 

 cyclostoma, 241, 242. 

 cygmata, 466. 



dalli, 1, 20, 248, 251-254. 



danielsf, 109, 555, 357-359. 



davisi, 283, 394. 



Dawsonella meekii, 80. 



decampi, 127, 289-291, 295. 



decidiosa, 273. 



decisa, 466. 



decollata, 314, 399, 400, 402, 403, 421, 



422, 425, 438, 444, 446, 447, 449. 

 delicata, 409, 415. 



desidiosa (authors), 162, 203, 262, 

 271, 273, 285, 288, 295, 319, 320, 

 332, 378, 379, 392, 464. 



desidiosa (Say), 107, 283, 313, j/<5, 



317, 318, 319, 320, 321. 

 diaphana, 97, 98. 

 Distoma ascidia, 41. 



" endolabrum, 41. 

 distortus, 334, 341. 

 DODDSI, 196, 203, 204. 

 doriana, 160. 

 Dytiscus, 44. 



eburnea, 467. 

 elegans, 149. 

 elliptica, 462. 

 elodes (authors), 43, 55, 300, 301, 303, 



336, 340, 389. 

 elodes (Say), 2, 312, 316, 319, 320, 



321, 322, 323, 324, 325-327, 329, 330, 



332, 340, 353, 362, 363, 378. 

 elongata (Sowb.), 39, 460. 

 elongata (Say), 322, 323, 370. 

 emarginata (authors), 101, 422, 425, 



427, 428, 438, 440, 455. 

 emarginata (Say), 2, 3, 19, 24-27, 31, 



45, 46, 127, 130, 296, 305, 316, 369, 

 . 389, 398, 399, 402, ^oS-416, 417, 418, 



420-434, 436-440, 442, 443, 451, 453, 



454, 455, 457, 458. 

 Ephemera, 41. 

 Erinna, 123, 124, 128. 

 Erinna newcombi, 128. 

 Espiphylla, 467. 

 Espiphylla nympheola, 467. 

 Estheria mexicana, 40, 220. 

 Eulimneus, 134. 

 exigua, 250, 270, ^5-289. 

 exilis, 1, 20, 94, 332, ^-350, 352-355. 

 expansa, 160, 301-305, 313. 



Fasciola hepatica, 203. 

 ferrissi, 227-229, 234. 

 ferruginea, 53, 255, 256, 269. 

 florissantica, 101. 

 Fossaria (West), 200. 

 fossaria (Sowb.), 466. 

 fragilis, 149, 302. 

 francisca, 148, 176. 

 fusca, 314. 

 fusiformis, 391, 392. 



gabbii, 53, 4O6-4Q8. 



Galba, 95, 108, 124-127, 199, 200, 234- 

 236, 307, 311, 373, 396, 454, 457, 458. 



