PLATE XXX. 



Page. 

 Fig. 1. Aperture view restored from the type specimen (after White). 



Am auropsis utahensis White 138 



Am auropsis bulbiformis Sowerby 137 



Nat. Mus. Cat. Invert. Foss., 22913. 

 Fig. 2. Aperture view. A small portion of the shell is broken away at the 

 base of the aperture. The spiral punctate lines are not quite so 

 prominent on the specimen. 

 3, 4. Opposite views of a larger specimen. 



SlGARETUS (E UNATICINA ?) TEXTILIS, n. Sp 139 



Nat. Mus. Cat. Invert. Foss., 22914. 

 Fig. 5. Dorsal view of a specimen of average size showing the surface orna- 

 mentation. (The outer lip is not thickened, as the drawing would 

 indicate. The appearance is caused by accidental delects and by 

 the absence of revolving sculpture on that part of the shell.) 



6. Aperture view of smaller specimen. The inner lip and umbilicus 



are concealed in the dark shadow. 



Mesostoma occidentalis n. sp 139 



Nat. Mus. Cat. Invert. Foss., 22915. 



7. Dorsal view of a nearly perfect specimen, enlarged. 



8. Aperture view of a fragment. 



Eulimella? funicula Meek 140 



Fig. 9. Aperture view of Meek's type (after White). 



Chemnitzia? coalvillensis Meek 141 



Nat. Mus. Cat. Invert. Foss., 22916. 



10. Aperture view of a slender specimen. 



11. Aperture view of a stouter specimen. The outer lip and base of the 



aperture are broken in both examples. 



252 



