INDEX AND SYNONYMY. 
Delicatula (Mangilia), T.-Woods. Proc. Roy. Soc. Tas., 
1878, 37, 
Delosensis (Pleurotoma), Reeve. " Conch. Te. _ pl. 40, f. 365. 
= P.clathrata, Marcel, . 
Deluta (Daphnella), Gould. Proc. Bost. Soc., vii, p. 339, 
Demersa (Bela), Tiberi. Jour. Conch., 1868, p. 179. 
i Mirchi, Malm. . : : : 2 : : 
Dempsta (Mangilia), Gould. Proc. Bost. Soc., vii, p. 340, 
Denseplicata (Pleurotoma), Dunker. Mal. Blat., xviii, p.159, 2 
Densestriata (Mangilia),C.B. Adams. Conch. Contr., p. 65. 
? — M. balteata, Reeve, 
Dentatum (Pleurotoma), Souvr. Jour. Conch., xvii, p. 418; 
Xviii, p. 431, pl. xiv, f. 5, 
Dentifera (Clathurella), Hinds. Moll. Voy. Sulph. op: 93 spl 
1, f. 14; Proc. Zool. Soc., 1843, p. 44, . 
Derelicta (Cythara), Reeve. Proc. Zool. Soc., 1846, p. ve 
Desalesi (Mangilia), T.-Woods. Proc. Reae Soe. Tasm., 
1876, 138, 
Deshayesii (Mangilia), Dkr. Mal. Blatt., Vig: 298, 
Deshayesii (Pleurotoma), Doumet. Mag. ‘de Zool. Moll., 
1840, pl. 11. = P. Indica, Desh. 
Despecta (Defrancia), H. and A. ‘Ad. Genera, i, 96, . 
Detecta (Drillia), Dall. Bull. Mus. Comp. Zool. ix, 65, 1881, 
Diadema (Fusus), Lesson. Sowb. Thes., iv, pl. 410, fig. 53. 
= Columbarium Pagoda, Lesson. 
Diadema (Pletirotoma), Kien. Iconog., pl. 8, f. 2. 
= Clavatula muricata, Lam. . 
Didyma (Genotia), Watson. Jour. Linn. Soc., XV, 404, 1881, 
Difficilis (Pleurotoma), Smith. Proc. Zool. Soc. ,1879, p. 187, 
pros toy. 
Digitalis (Drillia), Reeve. Proce. Zool. Soc., 1843, p- 186, 
Digitalis (Mangilia), Reeve. Proc. Zool. Soc., 1846, p- 65, 
Digna (Drillia), E. A. Smith. Ann. Mag. N. H. 1877, p. 499, 
Diminuta (Pleurotoma), C. B. Ad. Conch. Contr. p. 63. 
= P. quadrata ? Reeve: : 
Discors (Bela), Brown. Brit. Shells, 6, t. 5, tebe 1. 
= B. pyramidalis, Strom. . 
Discors (Pleurotoma), Sowb. Proc. Geol. Soe. ,1833 \p. 137, 
= D. aterrima, Sowb., var. 
Discrepans (Bela), Brown. Brit. Conch., 6, t. 5, f. 49, 50. 
= B. rufa, Mont. 
Ditoma, Bellardi. Moll. Terz. Piemonte, pt. 2, 29, 5, 1877. 
= Clathurella, Sect. 
Diversa (Drillia), Smith. Ann. Mag. N. H., 182 eee 
Dolichotoma, Bellardi. Moll. Terz. “Piemonte, pt. wi 229, 
1877. — Genotia, Section, 
339 
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