:pl^t e si. 



Pogi 

 Fig. 1. Haminea minor •-'?:; 



l,n. Dorsal view, natural size. 

 1,6. An aperture view of same. 



Pig. -'• Cylichna ? volvaria 275 



2,<?. Dorsal view. 



2, b. An aperture view. [Columella and outer lip not exactly natural.] 



2, c. Surface-markings, magnified. 



Fig. 3. Cylichna scitula 276 



3, a. An aperture view of the type-specimen, rather mere than three diameters. [This figure 



does uot show the twist and fold of the columella : and the broken lip makes the 

 aperture appear too angular below, and too narrow above] 

 3, 6. An opposite view of same. 



3, c. Surface-markings, magnified. 



Fig. 4.* Ceritihiopsis ? Moreauensis :;:!:. 



An imperfect specimen, magnified about one and half diameters, witli the upper third of 

 its spire wanting, ami its lip broken so as not to give a very clear idea, of the aper- 

 ture (type). 



Fig. 4, «, b. Anisomyon patelli foemis 290 



4,». tV side view of an internal cast of type. 



4, b. A view of the same, from above. 



Fig. 5. Pseudoisuccinum Nebrascense 350 



5, a. A dorsal view, natural size, of the type-specimen. 

 5, b. An opposite or aperture view of tin- same. 



5, c. Surface-markings, magnified. 



5, (J. An aperture view, magnified. 



Fig. 6. Pyrifusus Newberryi 340 



6,(1. Dorsal side of type-specimen. [Lines of growth not curved enough. ]t 



6,6. An aperture view of same.t 



6,c. A specimen with surface-folds more distinct., 



6, d. An aperture view of same.t 



6. e. A smaller imperfect specimen, with strong folds.} 



0,/. A larger specimen, with the folds obsolete. [Lines of growth not curved enough.]} 



Fig. 6 (bis). Cinulia (Oligoptyi iia) concinna 284 



6, a (bin). A specimen showing the thickened rim of the lip, natural size. 

 6, b (bis). Surface-markings, magnified. 



6, c (bis). An aperture view magnified, showing the single very prominent plait at the base of 



the aperture. 

 Fig. 7. Turris (Surcui.a?) contortus 385 



7, n. Au aperture view. [Inner lip appears much thicker than natural, on account of the 



weathering of the surface of the body-volution near it..] 



7, ft. An opposite view of the larger type-specimen. [Lines of growth not enough curved.] 

 7,c. A smaller specimen, same view. 



Fig. 8. Fasciolaria bdccujoides 358 



8, it. A dorsal view of the mature type-specimen. 



8, '>. An aperture view of the same : the plaits of the columella not being continued fareuongh 



around to be seen. 

 8,c. A smaller specimen, with tin surface folds or costaa more developed. 

 8, (1. Surface-markings, magnified. 

 'Not. 4,«,6. t Left margin of plate ;Bottomof plate Eight margin of pinto. 



