ILLUSTRATIONS. 



Page. 



Plate I. Murioidse of the Lower Bed Greensaiid Marls SOO 



II. Murioidse of the Lower Bed Greensan J Marls 302 



III. Mnricldae of the Lower Bed Greensand Marls 304 



IV. Muricldse of the Lower Bed Greensand Marls 306 



V. Muricldje and Fasciolariidie of the Lower Greensand Marls 308 



VI. Fusldas and FasciolariidEB of the Lower Greensand Marls 310 



VII. FasciolariidsB of the Lower Greensand Marls 312 



VIII. FasciolariidsB of the Lower Greensand Marls 314 



IX. Fasciolariidae, Tritonidae and Turhinellidue of the Lower Greensand Marls.. 316 



X. Volutidas of the Lower Greensand Marls 318 



XI. Volutidae and Mitridae of the Lower Greensand Marls 320 



XII. Cancellariidae of the Lower Greensand Marls 322 



XIII. PleurotomidsB and Strombidae of the Lower Greensand Marls 324 



XIV. StrombidsB of the Lower Greensand Marls ,326 



XV. Cyprseidse, Doliidae, and Naticidce of the Lower Greensand Marls 328 



XVI. NaticidsB of the Lower Greensand Marls 330 



XVII. Trochidte, Onustidae and Littorinidse of the Lower Greensand Marls ,332 



XVIII. ScalariidsB, Turritellldse, and Vermetidae of the Lower Greensand Marls 334 



XIX. Eulimidae, Pyramidellidae, Patellidae, and Tornatellidie of the Lower Green- 

 sand Marls 336 



XX. Tornatellidae, Cylichnidae, BuUidae, and Deutaliidaa of the Lower Greensand 



Marls ^ 338 



XXI. Muricidae, Volutidae, and Naticidse of the Middle Bed Greensand Marls 340 



XXII. Scalariidas and Pleurotomariidae of the Middle Bed Greensand Marls 342 



XXIII. Tarbinellidae, Volutidae, Pleurotoraidae, Stroinbid^, Turritellidis, Pleuroto- 



mariidae, and BuUidae from the base of the Upper Bed Green.saud Marls. 344 



XXIV. Muricidae, Tritonidae, Purp'jridae, and Fusidae of the Eocene lajers of the 



Upper Bed Greensand Marls 346 



XXV. Fusidae of the Eocene layers. Upper Bed Greensand Marls 348 



XXVI. FusidsB and Fasciolariidae of the Eocene layers of the Upper Bed Greensand 



Marls 350 



XXVII. Fasciolariid£B of the Eocene layers of the Upper Bed GreensanJ Marls 352 



XXVIII. Fasciolariidaa of the Eocene layers of the Upper Bed Greensand Marls 364 



XXIX. Turbinellidae of the Eocene layers of the Upper Bed Greensand Marls 356 



XXX. Volutidae of the Eocene layers of the Upper Bed Greensand Marls 358 



7 



