INDEX AND SYNONYMY. 
Nodulosa (Drillia), Pease. Proc. Zool. Soc., 1862, p. 279, 
Nodulosa (Raphitoma), cies? Rept. Brit. Assoc., 113, 
1873, : : : : : : 
Normalis (Bela Blakeana, var. ), D Dall. Bull. Mus. Comp. 
Wool ie, 54, 1881, : : : : : 
Novee- Hollandiz (Cy thara), Reeve. Proc. Zool. Soc., 1846, 
p- 62 : : z ; : 
Nove- Zelandixe (Drillia), Reeve. “Conch. Ie., sp. 143, 1843, 
Novaja-semljensis ee Leche. Kgl. Sv. Vet. ete: 
Handlingar xvi, 2, 53, t. 1, f. 15, : : 
Nucleata (Drills). Dall. Bull. Mus. Comp. Zool., Pies 
1881," 
Nuperrima (Mangilia), Tiberi. Des. Nuov. Test. Medit. 1P. 
[te as 0) Ca a : 
Nux ’(Clionella), Reeve. Proc. Zool. Soc., 1845, P. 112 
Obeliscus (Mangilia), Reeve. Proc. Zool. Soc., 1846, p. 64. 
— M. hexagonalis, Reeve, 
Obeliscus (Drillia), Reeve. Proc. Zool. Soc., 1845, p- 110, 205 
Obesa RGiehorells), G arrett. Proc. Acad. Nat. Sci. Phila., 
Sie, p. 221, pl. 2,4. 36, . ‘ : 
Obesa (Mangilia), Becve. Conch. Icon., errata, 
Obesa (Pleurotoma), Reeve. Proc. Zool. Soc. “4 33, 1843, 
Obesicostata (Pleurotoma), Reeve. Conch. Ic., pl. XeXKNs 
f. 265. = Mangilia Guarani, Orb. 
Obliqua (Bela), Sars, Moll. Norv., 226, t. 16, f. 6, 1878, 
Obliqua (Pleurotoma), Anton. Verzeichniss, p. TR, : 
Obliquata (Drillia), Reeve. Proc. Zool. Soc., 1845, p- 115. 
Smith, Zool. Proc., 1879, p. 191, : 
Obliquicostata (Drillia), Reeve. Proc. Zool. Soc., 1845, p. 
1 ae 
Oblongus (Murex), Brocchi. Conch. foss. subap., 430, t. 9, 
Z19. — P. gracilis, Mont. : ; ; ; : , 
Obnubila (Pleurotoma), Migh. Proc. Bost. Soc. N. H., 
1848, p. 24, 
Obtusa (Clathureila), Reeve. Proce. Zool. Soc., 1846, p- 6, 2 
Obtusicostata (Pleurotoma), Smith. Ann. Mag. N. H., 1882, 
ae, : ; : : ; : 
Obvelata (Drillia), Car penter. — D. nigerrima, Sowb., var. 
Oceata (Clathurella), Hinds. Proc. Zool. Soc., 1843, p. 41, 
Occidentalis (Clathurella), Reeve. Conch. Ic., pl. 39, f. 357, 
Ocellata (Lienardia), Jousseaume. Bull. Soc. Zool. France, 
ures 1884, . . : : ; : j 
Octangulata (Clathurella), Dkr. Mal. Blatt., vi, p. 234, 
Oleacina mals Dall. Bull. Mus. Comp. Zool., ix, aS 
1881, 
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