292 INDEX AND SYNONYMY. 



PAGE. 



Costatus (Fossarus), Scacc. Osserv. Zool., p. 24. 



- F. ambiguus, Linn. ....... 271 



Costulata (Cithna tenella, var.), Jeffreys. Zool. Proc., p. 110, 



1883, 268 



Costulata ("Littorina), Souleyet. Voy. Bouite., ii, 561. 



- L. varia, Sowb. ... .... 246 



Costulata (Littorina tenebrosa var.), Midd. Malac. Ross., ii, 



p. 61, t. 8, f. 6-8. = L. rudis, Donov 241 



Couthouyia, A. Ad. Ann. & Mag., v, p. 410, 1860, . 236, 273 

 Crassa (Risella), Dkr. Mai. Blatt., viii, p. 42, 1862. 



? = R. melanostoma, Gmel. ....... 262 



Crussior (Lacuna), Montg. Test. Brit. Suppl., p. 127, t. 20, . 267 

 Crassispira (Planaxis), E. A. Smith. Ann. & Mag., ix, p. 39, 



1872, 277 



Cremnobates, Blanford. Ann. & Mag., xii, p. 184, 1868. 



= Cremnoconchus, Blanford. ...... 231 



Cremnocouchus, Blanford. Ann. & Mag., iii, p. 343, 1869, . 231 

 Crosseana (Natica), Kleciak in Weink. Conch. Mittelm., ii, 

 p. 257, 1868. = Megalomphalus azonea, Brus. . . . 268 



Cubana (Littorina), Weink. Conch. Cab., p. 68, t. 9, f. 2, 3, 



1882. ? = L. columellaris, Orb. var 246 



Cumingii (Fossarus), A. Ad. Zool. Proc., p. 187, 1853, . . 274 

 Cumingii (Littorina), Phil. Zool. Proc., p. 138, 1845, . . 257 



Cyclocheila, Conrad .233 



Cyclostoma (Limnotrochus), Bourg. Not. Moll. Lax? Tangan- 

 yika, p. 60, 1885, . 265 



Debilis (Littorina), Phil. Zool. Proc., p. 140, 1845. 



= L. ziczac, Chemn. 251 



Decollata (Littorina), Krauss (in letter), Phil. Abbild., t. 4, 



f. 3, 1847. = L. Africana, Krauss 249 



Decollata (Planaxis), Quoy. Voy. Astr., ii, p. 489, t. 33, f. 



33-34, 1832, . .280 



Decorata (Lacuna), A. Ad. Ann. & Mag., viii, p. 304, 1861, 270 

 Decussata (Litiopa), Gould. Bost. Proc., iii, p. 75, 1848. 



= L. melanostoma, Rang. . . . . . . .281 



Decussatus (Fossarus), A. Ad. Ann. & Mag., v, p. 410, 1860, 273 

 Delicatula (Fossarus reticulatus, var.), Nevill. Hand List, p. 



166, 1884, 273 



Delicatula (Littorina conica, vnr.), Nevill. Hand List, p. 149, 



1884. = L. undulata, Gray. . ... 244 



Depressa (Megalomphalus), Sequenza. Bull. Real Comit. 



Geol. ItaL ii, p. 382, 1874; Jeffreys, Zool. Proc., 41, 1885, 267 

 Diala, A. Ad. Ann. & Mag., viii, p. 242, 1861, . . 239, 282 

 Dicmeiiensis (Littorina), Quoy. Voy. Astr., ii, p. 479, t. 33, 



f. 8-11, 1832. = L. Mauritiana, Lam 247 



Dilatata (Littorina), d'Orb. Moll. Cuba, i, p. 207, t. 14, f. 20- 



23, 1853. T. nodulosus, Gmel 258 



