INDEX TO HELICES. 



Peunantiana Pfr. vii, 36 ; ix, 141 

 Pennsylvania Green, iii, 



[151; ix, 77 

 Penolensis Cox, ii, 179. 

 Pentodon Mke.=Strophia, q. v.. 

 Peracanthoda Bgt. iii, 54 ; 



[ix, 281 

 Peracutissima C. B. Ad. v, 



[106 ; ix, 89 



Perseruginosa Hde. . ix, 170 

 PeraffinisC. B. Ad. iii, 98; 



[ix, 57 



Peraffinis Pils. vii, 139 ; ix, 222 

 Perakensis Cr. vii, 82 ; ix, 170 

 Perakensis Nev. ii, 61. 

 Perarcta Blanf. iii, 162 ; ix, 146 

 Perarmata Smith, . ix, 339 



Percarinata Marts, ii, 51. 

 Percompressa Bens, iii, 84; 



[ix, 4 



Percussa Hde. vi, 111 ; ix, 124 

 Percyana Smith, vi, 42 ; ix, 157 

 Perdepressa C. B. Ad. iii, 



[100; ix, 58 



Perdepressa Pils. . . ix, 223 

 Perdepressa West. . ix, 2(32 

 Perdita Desh. ii. 171. 

 Perdita Hutt. viii, 76 ; . ix, 18 

 Perdita Rve. . . ix, 229 



Peregra Parr. . . ix, 267 

 Peregrina Arad. & Mag.j^, 159 

 Perelevata Pils. . . ix, 182 

 Pererosa Woll. . . ix, 242 

 Perfecta Bgt. . . ix, 302 

 PerforataDh.ii, 123. 

 Perforata West., . . ix, 304 

 PERFORATELLA Sch litter, 



[ix, 277 



Perfucata Bens, ii, 124. 

 Pergranulatus Godet, ii, 136. 

 Perigrapta Pils. . . ix, 77 

 Perinflata Pfr. viii, 282 ; ix, 131 

 Peritricha Bttg. viii, 230; 



[ix, 303 



Peritropis Pils. v, 140 ; ix, 94 

 Perlevis Sh. iii, 181 ; ix, 274 

 Perlineata Mouss. . ix, 304 



Perlucida H. Ad. ii, 107. 



Perlucida Iss. ii, 117. 

 Perlutosa Hag. . . ix, 257 

 Permellita Hde. . . ix, 210 

 Permodesta Streb. ii, 165. 

 Permollis Stol. i, 177. 

 PernobilisFer.ii, 33. 

 Peroni Brazier, . . ix, 33 

 Perpaula Bens, ii, 89. 

 Perplanata Pils. viii, 181 ; 



[ix, 260 



Perplanata Nev. iv, 57 ; ix, 209 

 Perplexa Fer. v, 89 ; . ix, 91 

 Perplicata Bens, iii, 106 ; ix, 38 

 Perpolita Mouss. ii, 113. 

 Perraudierei Grass, iv, 1 76 ; 



[ix, 327 



Perrieri Mab. iv, 160 ; ix, 327 

 Perroquiniana Cr. ii, 167 ; 



[ix, 54 



PerrottetiPfr.ii,94. 

 Perroudiana Loc. iv, 8 ; ix, 255 

 Perruginea Mke. . ix, 336 



Perryi Jay, vi, 108 ; . ix, 214 

 Persculpta Sm. . . ix, 340 

 Persianii Tib. iv, 220; ix, 332 

 Persica Bttg. iv, 85 ;. ix, 304 

 Persica Kosen. . . ix, 283 

 PersimUis~Dh. . . ix, 224 

 Persimilis Shutt. iv, 19 ; ix, 258 

 Personata Drap. iii, 147 ; ix, 309 

 Persordida Let. & Bgt. iii, 185. 

 Perspectiva Blanc, ii, lo*. 

 Perspectiva Fer. . . ix, 47 

 Perspectiva Miihl. . . ix, 47 

 Perspectiva Say, iii, 20; ix, 48 

 Perspectiva Sterki, viii, 



[257 ; ix, 284 

 Perspectiva Wagn. i, 61. 

 Pertenuis Gld. ii, 116. 

 Peruviana Lam. . . ix, 16o 

 PerwaMuhlf. . . ix, 302 

 Petasia Beck, ii, 11 ; . ix, 278 

 Petasina Morch. . . ix, 277 

 Petasus Bens, ii, 109. 

 Petasussinensis Hde. ii, 218. 

 Petholata Oliv. . . ix, 336 

 Petitiana Orb. v, 60 ; . ix, 97 

 Petrsea Anc. iii, 238. 



