Helix breiveri, 187. 



bucculenta, 156, 158. 

 bulbina, 148. 

 capillacea, 176. 

 cincta, 165. 

 clausa, 143. 

 convexa, 165. 

 costata, 206. 

 cronkhitei, 210. 

 crystallina, 249. 

 dissidens, 172. 

 z, 206. 



egena, 183. 

 elec 



ectrina, 180. 



fallax, 146, 147. 



fereusoni, 206. 



fraterna, 163. 



hydrophila, 186. 



infecta, 206. 



ingallsiana, 158. 



isognomostomos, 163. 



laevipata, 249. 



lavelleana, 189. 



leaii, 765. 167. 



major, 151. 



mauriniana, 189. 



mimita, 249. 



minutilis, 189. 



minutissima, 215. 



mordax, 206. 



nitidosa, 180. 



0//0XZJ, 187. 



patudosa, 249. 



planorboides, 172. 



porcina, 163. 



/ra, 180. 



radiatula, 180. 



rafinesquea, 191. 



richardi, 148. 



ntderata, 210. 



r///rt, 151. 



rcar<z, 206. 



sinuata, 163. 



striatula, 180. 



strongylodes, 206. 



transversensis, 151. 



viridula, 180. 



wardiana, 191. 



zaleta, 154. 

 HEMILASTENA.J^. 

 Hemilastena ambigua, j>9^. 

 Heterostromum echinatum, 361. 

 HETERURETHRA, ^/d. 

 Histrionella pomatiopsidis, 346. 



HOLOPODA, 7/0. 



Hyalinia, 177. 

 Hyalina pellucida, 180. 



subrupicola, 182. 



viridula, 187. 

 HYGROPHILA, .?j<5. 



Instructions for collecting mollusks, 25 



LAMPSILIS, 91, 95-, 94. 



Lampsilis alatus, 48, 65, 97, 98, 100. 



anodontoides, 65, 700, 101, 

 105, 394. 



ellipsiformis, 394. 



fallaciosus, 5>(y. 



gracilis, 65, pp. 



iris, 65, 96, 705, 107. 



ligamentinus, 48, 66, 70(5", 

 109. 



luteolus, 65,73, 101, /oj, 109. 



multiradiatus, 66, 95. 



parvus, 66, 73, 709, 394. 



rectus, 48, 65, 71, 707. 



spatulatus, 65, 7O<5, 107. 



ventricosus, 65, p/. 

 Leucochloridium paradoxum, 222. 



, . 



LIMAX, 7pj>, 195, 199, 203. 

 Limax agrestis, 194, 195. 



antiquorum, 195. 



castaneus, 199. 



cellarius, 195. 



flavus. 33, 194, 195, 797, 198. 



hyperboreus, 199. 



intermedius, 199. 



maculatus, 195. 



marmoratus, 201. 



maximus, 33, 194, 795, 196, 198, 

 200. 



montanus, 199. 



occidentalis, 199. 



togata, 201. 



/m/&, 199. 



iiariegatus, 197. 



vulgaris, 195. 

 LIMN^A, 256, 257, 759. ^ 

 Limnaea, acuminata, 260. 

 265. 



a/*. 283. 



ayVrta, 283. 



appressa, ^j>, 286. 



aquarii, 283. 



arenaria, 283. 



attenuata, 280, 281. 



auricularia. 408, 409. 



biplicata, 283. 



caperata, 139, 159, 269, '270, 



271, 262, 273. 

 casta, 260. 

 catascopium, 259, 2<5j, 264, 



265. 



chalybea, 260. 

 coarctata, 260. 



columella, 259, 260, 261, 262. 

 columellaris, 260. 

 cornea, 263. 

 costulata, 283. 

 cubensis, 139, 272, 273. 

 curta, 268. 

 decampii, 265. 

 decollata, 265. 



