602 



INDEX OF FIGURES. 



Macrocyclis Voyana 84 



Mesodon albolabris 298, 299 



Andrewsi 301. 302 



bucculentus 315 



Chilo weensis 320 



Chrysti 308 



Clarkii 307 



claasas 315 



Columbianus 116 



dentif eras 312 



devius 118,119 



divestns 390 



Downieanus 317 



elevatus 306 



exoletus 309 



IngallsiaDa 316 



jejnnus 390 



Lawi 317 



major 297 



Mitchellianus 305, 306 



Mobilianua 391 



multilineatus 302 



Pennsylvanicus 304 



profundus 318 



Roemeri 389 



Sayii 295, 319, 320 



tbyroides 49,314 



"Wetherbyi 313 



"Wheatleyi 311 



Microphysa incrustata 355 



IngersoUi 170 



Lansingi 90, 91 



pygmaea 71,73 



Stearnsi 92 



vortex 356 



Onchldella borealis 161, 162 



Carpenter! 163 



Orthalicus melanochilus 440 



undatus 436, 438, 440 



Patula alternata 255, 257, 258 



asteriscus 186, 187, 252 



Bryanti 261 



Cooperi 166 



Cnmberlandiana 49, 253, 258 



Haydeni 167 



Hemphilli 168 



Horni 169 



Idahoensis 168 



mordax 257 



pauper 187 



perspectiva 260 



solitaria 252, 254 



striatella 70, 252 



strigosa 165 



Polygyra Ariadnae 376 



auricnlata 361 



aTiriformis 361, 363 



avara 366 



Carpenteriana 380 



cereolus 379 



Dorfeuilliana 374 



espicola 366 



fastigans 270 



Febigeri 381 



^arfordiana , , , 114 



Page. 



Polygyra Hazard! 267 



Hinds! 368 



h!ppocrep!8 372 



Jackson! 373 



leporina 50, 266 



Mooreana 370 



oppilata 373 



Postelllana 364 



pustul a 382 



pustnloides 383 



septemvolva 360, 376 



Texasiana 369 



triodonto!de8 370 



Troostiana 269 



uvul!fera 363 



ventrosula 360,367,368 



Polygyrella polygyrella 171, 172 



Pomat!a aspersa 469, 470 



Prophysaon Hemphilli 104,106 



Papaalticola 174 



Arizonensis 173 



armifera 326,327 



badia 322 



Blandi 188 



Californica 157 



contracta 327 



corpulenta 172 



corticaria 330, 331 



decora 189 



fallax 324 



Hoppii 189 



hordeacea 173 



modica 417 



muscorum 78 



pellucida 418 



pentodon 321,323,324 



Rowelli 156 



riipicola 328 



variolosa 417 



Stenogyra decollata 424, 456, 458 



gracillima 427 



octonoides 425 



subula 423,426 



Stenotrema barbigerum 276 



Edgarianum 274 



Edvards! 275 



fraternum 280 



hirsutum 278 



labrosum 274 



Leaii 280 



maxillatum 280 



monodon 272,280,282 



spinosum 273 



stenotremum 277 



Strobila Hubbard! 359 



labyrinthica 47, 263, 264, 265 



Strophia incana 48, 419, 420 



Succinea aurea 340 



avara 337,339 



campestris 443 



chrysis 473 



Concordialis 441 



effusa 442 



Forshey! 344 



Grcenlajidic^ ...,..,.., 197 



