INDEX AND SYNONYMY. 215 



Nodiferus (Tritons), Ad. and Rve. Voy. Samarang. p. 46, t. 11, 



f. 37, a. b. 1850, . 177 



Nodosus (Strombus), Schroeter. Thes. Conch. 386. 



= Cerithium vulgatum, Brug. ...... 125 



Nodulosa (Cerithium vulgatum, var.) Phil. B. D. D. Moll. 



Eouss. 200, 126 



Nodulosum (Cerithium), Brug. Enc. Meth. t. 442, f. 3, . 122 



Notatum (Cerithium), Menke. Synopsis, p. 33, 1826. 



= C. muscarum, Say. . . . . . . .132 



Novae-Hibernise (Cerithium), A. Ad. Thes. Conch, ii, p. 857, f. 



84, 85, 1855. = C. eburneum, Brug 129 



Novse-Hollandise (Cerithium), A, Ad. Thes. Conch, ii, p. 864, 



f. 54, 1855, 124 



Obeliscoides (Cerithium), Jeffr. Zool. Proc. p. 55, t. 6, f. 4, a. 



1885, . . 175 



Obeliscus (Cerithium), Brug. Encyc. Meth. t. 443, f. 4, a. b. . 146 

 Obesula (Cerithiopsis tubercularis, var.) B. D. D. Moll. Rouss. 



p. 205, t. 27, f. 4, 1884, 168 



Obesula (Mastonia), Jouss. Bull. Soc. Mai. France. Pt. 3, p. 



255, t. 4, f. 17, 1884, 185 



Obesulum (Cerithium), Sowb. Reeve's Conch. Icon. sp. 149, 



1865, 139 



Obesulus (Triforis perversus, var.), Monts. B. D. D. Moll. 



Rouss. p. 212, t. 26, f. 18-20, 1884, . . . . .187 

 Obesum (Cerithium), Sowb. Thes. Conch, ii, p. 868, f. 141, 142, 



1855. = C. repletulum, Bayle. 139 



Obscurum (Cerithium), Homb. and Jacq. Yoy. Astr. and Zelee. 



v, p. 102, t. 24, f. 5, 6, 1854. = C. moms, Lam. . . 133 

 Obtusum (Cerithium), Lam. Anim. sans Vert. No. 17, . 161 



Ocellatum (Cerithium), Brug. Enc. Meth. No" 43, . 132 



Omissum (Cerithium), Bayle. Journ. de Conch, p. 250, 1880. 



= C. Erythrseonense, Lam. . . . . . .123 



Oosimense (Cerithium), Watson, Journ. Linn. Soc. xv, p. 117, 



1881, 156 



Opportunum (Cerithium), Bayle. Journ. de Conch, p: 248, 



1880, .130 



Ornata (Cerithidea), A. Ad. Thes. Conch, ii, p. 887, f. 277, 



278, 1855, .162 



Ornatum (Cerithium), Desh. Encyc. Meth. iii, 1053, 1832, . 188 

 Oryza (Bittium), Morch. Mai. Blatt. xxiii, p. 121, 1876, . 158 

 Oryza (Triforis), Pse. Zool. Proc. p. 776, 1870, . . .191 

 Owenii (Cerithium), Fer. Martini Conch, t. 155, f. 1459. 



= C. radula, Linn. . . . . . . . .159 



Pacificum (Cerithium), Sowb. Gen. of Shells. No. 42, f. 9. . 158 

 Pagodula (Cerithium), Anton. Verzeich. p. 65, 1839, . . 144 

 Pagodulus (Cerithiopsis), A. Ad. Ann. and Mag. p. 130, 1861, 177 

 Pagodus (Triforis), Hinds. Zool. Proe. p. 22, 1843, . . 191 



