INDEX AND SYNONYMY. 361 



PAGE. 



Nodulosa (Drillia), Pease. Proc. Zool. Soc., 1862, p. 279, 212 

 Nodulosa (Raphitoma), Jeffreys. Kept. Brit. Assoc., 113, 



1873, .... 312 



Normalis (Bela Blakeana, var.), Dall. Bull. Mus. Comp. 



Zool., ix, 54, 1881, 222 



Novge-Hollandiae (Cythara), Reeve. Proc. Zool. Soc., 1846, 



p. 62, 266 



Novse-Zelandiee (Drillia), Reeve. Conch. Ic., sp. 143, 1843, 184 

 Novaja-semljensis (Bela), Leche. Kgl. Sv. Vet. Akad., 



Handlinoar xvi, 2, 53, t. 1, f. 15, 215 



Nucleata (Drillia), Dall. Bull. Mus. Comp. Zool., ix, 62, 



1881, . 212 



Nuperrima (Mangilia), Tiberi. Des. Nuov. Test. Medit., p. 



14, pi. 2, f. 9, 307 



Nux (Clionella), Reeve. Proc. Zool. Soc., 1845, p. 112, . 233 



Obeliscus (Mangilia), Reeve. Proc. Zool. Soc., 1846, p. 64. 



= M. hexagonalis, Reeve, ...... 251 



Obeliscus (Drillia), Reeve. Proc. Zool. Soc., 1845, p. 110, 205 

 Obesa (Clathurella), Garrett. Proc. Acad. Nat. Sci. Phila., 



1873, p. 221, pi. 2, f. 36, . . 273 



Obesa (Mangilia), Reeve. Conch: Icon., errata, . . 262 



Obesa (Pleurotoma), Reeve. Proc. Zool. Soc., 33, 1843, . 231 

 Obesicostata (Pleurotoma), Reeve. Conch. Ic., pi. xxxix, 



f. 265. == Mangilia Guarani, Orb. . . . .247 



Obliqua (Bela), Sars. Moll. Norv., 226, t. 16, f. 6, 1878, . 219 

 Obliqua (Pleurotoma), Anton. Verzeichniss, p. 73, . . 318 

 Obliquata (Drillia), Reeve. Proc. Zool. Soc., 1845, p. 115. 



Smith, Zool. Proc., 1879, p. 191, 203 



Obliquicostata (Drillia), Reeve. Proc. Zool. Soc., 1845, p. 



110, ... . .... 204 



Oblongus (Murex), Brocchi. Conch, foss. subap., 430, t. 9, 



f. 19. = P. gracilis, Mont 312 



Obnubila (Pleurotoma), Migh. Proc. Bost. Soc. N. H., 



1848, p. 24, . 319 



Obtusa (Clathurella), Reeve. Proc. Zool. Soc., 1846, p. 6, 294 

 Obtusicostata (Pleurotoma), Smith. Ann. Mag. N. H., 1882, 



304, ... 274 



Obvelata (Drillia), Carpenter. = D. nigerrima, Sowb.,var. 

 Occata (Clathurella), Hinds. Proc. Zool. Soc., 1843, p. 41, 280 

 Occidentalis (Clathurella), Reeve. Conch. Ic., pi. 39, f. 357, 279 

 Ocellata (Lienardia), Jousseaume. Bull. Soc. Zool. France, 



viii,xl, 1884, 274 



Octangulata (Clathurella), Dkr. Mai. Blatt., vi, p. 234, . 283 

 Oleacina (Drillia), Dall. Bull. Mus. Comp. Zool., ix, 66, 



1881, .213 



