[ t53 ] 

 12. Aglaja mormonum, Pfeiffer. 



Plate 5, figure 14. 



Globosely depressed, thin, arcuately striate ; spire slightly 

 elevated; whorls 6, slightly convex, the last descending a little 

 at the aperture ; aperture obliquely lunar ; lip white mar- 

 gined, the extremities converging, expanded, reflected towards 

 the base ; base convex, umbilicus moderate. Light reddish- 

 brown, with a darker band above the periphery, margined 

 with white. 



Diam. 29, height 12| mill. 



California. 



13. Aglaja ramentosa, Gould. 



Plate 5, figure 15. 



Depressed-orbicular, thin, granulated ; whorls 5|, the last 

 a little obtusely angulated ; aperture obliquely ovate-oblong ; 

 lip white, slightly expanded above, reflected below; perforate. 

 Brownish, with a peripherical band of dark brown, margined 

 with white. 



Diam. 20, height 12 1 i^ill. Cv ^i . fC Gc ^KL . 



California. 



According to Dr. ISTewcomb, (Am. Journ. Conch., i., p. 344,) 

 S. reticulata, Pfeiffer,- is a synonym of this species. I have 

 not seen an authentic specimen of IT. reticulata, but give a 

 figure copied from a wood-cut loaned to me by Thomas Bland, 

 {Plate Q,Jig. 18.) 



14. Aglaja Traskii, Newcomb. 



Plate 5, figure 16. 



Depressed-globose, thin ; spire subplanulate ;. whorls 6, 

 the last not descending, with numerous microscopical interwo- 

 ven striee ; lip but little thickened. Pale corneous, somewhat 

 pellucid, brown banded, within tinged with purple. 



Diam. 26, height 16 mill. 



Los Angelos, Cal., Santa Barbara, w.::: 



Differs from the following in its lighter substance and^color, 

 the lip not so much thickened, and the body- whorl not de- 

 scending at the aperture. 



