772 T\BLE GKMJllALli DUS MVlMÈllES 



PyramideUa, de Lamarck 237 



Mathilda, O. Sempor 237 



Menestho, MOller 238 



Pherusa, Jeffreys 230 



RISSOIID^ 



Alvania, Leach 239 



Rissoina, d'Orbigny 251 



Zippora, Leach 252 



Rissoia, Freminville 255 



Plagiostyla, P'ischer . 264 



Cingula, Fleming 264 



Jeffreysia, Aider 271 



Barleeia, Glark 272 



NATICID^ 



Natica, Scopoli 273 



Neverita, Risso 279 



VELUTINID^ 



Lamcllaria, Montagu 279 



Velutina, do Blaiiiville 280 



XENOPHORID^ 



Xenophora, Fischer de Waldheim 281 



LITTORINID.E 



Littorina, de Ferussac 281 



Fosxarus, Philippi 287 



Lacuna. Turtoii 288 



PHASIANELMD.E 



Phasianella, de Lamarck 292 



Stylifer, G. B. Sowerby. . . . • 294 



JANTHINID^ 



Janthina, de Lamarck 294 



GYCLOSTREMID^ 



Cyclostrema, Marryat ,.,,,..,., .... 296 



