[ 63 ] 

 12. Aglaja mormonum, Pfeiffer. 



Plate 5, figure 14. 



Glotosely 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 J mill. 



California. 



13. Aglaja ramentosa, Gould. 



Plate 5, figure 15. 



Depressed-orbicular, thin, granulated ; whorls 5 J, 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 12i mill. 



California. 



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

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

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

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

 {Plate 6, 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 strise; lip but little thickened. Pale corneous, somewhat 

 pellucid, brown banded, within tinged with purple. 



Diam. 26, height 16 mill. 



Los Angelos, Cal, Santa Barbara. 



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. 



