18 



ALPHABETICAL LIST, 



nodnlosa, Dohrn, 302 * 

 nodulosa, Lea, 200. 

 (noTse-zelandiae, Fischer), 153. 

 novce-zelandice, Reeve, 152.* 

 nubila. Reeve, 11, 12. 

 nucletis, Lam., 190. 

 nupera, Say, 206. 

 nuttalliana. Lea, 59. 

 nux. Reeve, 3.* 



oahuensis, Brot, 235. 

 oheliscus, Palad., 47. 

 obeliscus, Rec, 81.* 

 obesa, Pbil., 292.* 

 obesa, Phil, 295.* 

 obesa, Sow., 142. 

 obesus, H. Adams, 124. 

 obliquigvanosa, Smith, 273. 

 obliquus, A. Adams, 177. 

 oblonga, Desmarest, 102. 

 oblonga, Nev., 11. 

 obovata, Say, 205. 

 ohscurata, Desh., 22. 

 obsoleta, Partschl., 87. 



obtusa. Lea, 49. 



obtusa, Nev., 35.* 



oltusa, Troschel (not Reeve or C. 

 I.), 25,* 29.* 



cbtusata, L., 135, 136. 



obtusatus, Phil., 176.* 



(Odostomia), 133. 



olea, Reeve, 4.* 



oUvacea, 27. 



olivacea, A. Adams, 44. 



(olivacea, Sow.), 13. 



olivaria, Lea, 196. 



olivula, Conrad, 190. 



Omphaloteopis, 70, 71. 

 omphalotropis, A. Adams, 171. 

 (Oncomelania, Gredler), 219. 

 Onoba, H. and A Adams, 97, 119.* 

 opaca, Zgl., 54. 



Optidiceeas, Leith, 65, 6G, 67. 

 orhata, Morcb, 1. 



(orbignyana), 89. 

 orhignyana, Phil,, 139. 

 orbignyi, A. Adams, 92. 



orcula, B., 36, 37.* 



oregonensis, Try on, 201. 



orientalis, Nev., 41. 



orientalis, Nev, 82.* 



orientalis, Phil., 5.* 



orissaensis, Nev., 243. 



ornata, 136. 



ornata, B., 289 * 



ornata, Bl., 97. 



ornata Mor., 58. 



ornatus, Poey, 215. 



orsinii, Charp., 40. 



(orthochila, A Adams,) 178. 



ory&a, Garrett, 95. 



(oualanensis, Mouss.), 280. 



oualanensis, Pease, 280. 



ovalana, Mouss., 232, 

 ovata, Oliv., 8. 

 ovata, Pease, 70. 

 (ovoidea, Gould), 171. 

 ovum, Trosch., 14. 

 oxytropis, B., 22.* 



Pachtchilus, Lea, 268.* 



Pachtdeobia, Crosse and Fischer, 

 62. 



pachylalris, Nev, 92. 

 pagoda, 278. 



