74 



INDEX TO HELICES. 



Obstricta Say, iii, 148 ; ix, 

 Obstructa Fer. iii, 196 ; ix, 

 Obstructa Hde. not Fer. ix, 

 Obstrusa Fer. . . ix, 

 Obtecta Lwe. iv, 35 ; . ix, 

 Obtecta Reinh. vi, 362 ; ix, 

 Obtecta West. . . ix, 

 Obtusalis Mouss. . ix, 



Obtusa Pfr. vii, 132 ; . ix, 

 Obtusa West, ii, 171. 

 Obtusangula Pfr. ii, 114. 

 Obtusangula Reinb. ii, 178. 



Obtusata Ziegl. 

 Obverxa Born. 

 Obvia Mke. . 

 Obvoluta Miill. iii, 115 

 Ocampi Streb. iv, 76 ; 

 Occidentalis Reel, iii, 



ix, 

 ix, 

 ix, 

 ix, 

 . ix, 

 180; 

 [ix, 

 . ix, 

 . ix, 

 . ix, 

 . ix, 

 . ix, 

 . ix, 

 ix, 

 46. 



77 

 266 

 279 

 266 

 241 

 120 

 272 

 320 

 222 



320 

 330 

 252 



287 

 68 



274 

 54 

 333 

 251 

 266 

 122 

 302 

 10 



Occlusa Gass. i, 122; 

 Occlusa Mouss. 

 Occonella Let. & Bgt. 

 Occulta Biv. 

 OccultaPfr.vi, 266; 

 Occultata Paul. 

 Occultus Cox, iii, 264 

 Oceanica Le Guill. iii, 

 Ocellata Parr, iii, 191. 

 Ocellus Villa. . . ix, 252 

 Ochracea Zieg. . . ix, 266 

 Ochsenii Phil, ii, 166. 

 Ochthephila Beck, . ix, 243 

 Ochtbephila Orb. i, 64. 

 Ochthoplax Bens, vi, 202; 



[ix, 104 

 Oconnellensis Cox, vi, 158; 



[ix, 134 



Ocskayi Stentz. . . ix, 288 

 Octinella Bgt. viii, 55 ; ix, 234 

 Octogyrata Mouss. iii, 118; 



[ix, 288 

 Octolamellata Grt. viii, 95 ; 



[ix, 26 



Oculatus Montf. . . ix, 93 

 Oculuscapri Miill. ii, 134. 

 Oculus Pfr. iv, 59; . ix, 210 

 Odarsensis Fag. . . ix, 256 

 Odeca Bgt. . . ix, 271 



Odomphium Raf. . . ix, 69 

 Odontina Morel, ii, 27. 

 Odontognatha Morch. ix, xxiii. 

 Odontophura Bens, iii, 157 ; 



[ix, 148 

 ODONTOSAGDA Martens, ix, 64 



Odontura F. & C. 



ix, 



191 



Odopachya Bgt. iv, 140 ; ix, 325 

 Odotropis Raf. . . ix, 69 

 Oecoscia Bgt. ii, 143. 

 Oecoscia Bgt. 

 Oedesima Nev. 

 Oelandica West. 

 Oenostoma Dh. viii, 



275 

 322 

 307 



Oenostoma Lwe. . 

 Oertzeni Malz. iii, 229. 

 Oetrea Mart. 

 Oetse Kob. iv, 143 ; 

 Officieri Cox, iii, 266 ; 

 Ogiaca Serv. 

 Oglei G.-Aust. iii, 159 ; 

 Ogygiaca West. . 

 Okeniana Pfr. v, 110 ; 

 Oldbami Bens, iv, 61 ; 

 OleaceaSh. iv.20; 

 Oleacina Setup, iii, 77 ; 

 Olearis West, ii, 158. 

 Oleosa Pfr. ii, 127. 

 OLIGOSPIRA Anc. 

 Olisippensis Serv. 

 Olivacea Bttg. 

 Olivacea Mlldff. . 

 Olivacea Pils. vi, 300 ; 

 Olivacea Sut. viii, 75 ; 

 Olivaresi Serv. iii, 229. 

 Olivetorum Herrn. ii, 188. 

 Oliviaria Iss. 

 Olivieri C. Pfr. . 

 Olivieri Fer. iii, 191 ; 

 Olneyoc, Pils. 

 Oltisiana Fagot, ii, 172. 

 Olympica Roth, iv, 101 



. ix, 

 . ix, 

 . ix, 



223; 

 [ix, 204 

 . ix, 293 



ix, 

 ix, 

 ix, 

 ix, 

 ix, 

 ix, 

 ix, 

 ix, 

 ix, 

 ix, 



303 



326 



34 



250 



146 



263 



90 



209 



25S 



6 



ix, 154 

 ix, 256 

 ix, 304 

 ix, 228 

 ix, 156 

 18 



ix 



Omalisma Bgt. 



ix 

 ix 

 ix 

 ix. 



ix 

 ix 



Omaloraorpha Orb. i, 64. 

 Omega Pfr. . . . ix, 

 Omicron Pfr. i, 115; . ix, 

 Omissa Pfr. ii, 175. 



265 



266 



266 



76 



303 

 47 



18 

 34 



