250 AMERICAN JOURNAL 



DESCRIPTIONS OF TWO NEW SPECIES OF CYPRiEA. 



BY S. R. ROBERTS. 



1. C. ann;e, Roberts. PI. 15, f. 4, 5, 6. 



Description. — Shell orbicularly ovate; sides slightly margined; 

 base convex; teeth small, on the outer lip strong, 18 in num- 

 ber and of a fulvous color ; the teeth on the columella are less 

 numerous, and for a short space from either end extend some 

 distance over the base of the shell ; back light cream-color, de- 

 pressing at either end into a darker hue, and covered over with 

 numerous small, white spots ; margins near the extremities slightly 

 pitted; pits orange color; base white; aperture somewhat flexuose. 

 Length 10 J m. ; alt. 5 m. 



Hub. — Sandwich Islands. 



Mus. Acad. Nat. Sci. 



Found among a lot of 0. semiplota, Mighels, sent by W. H. 

 Pease, Esq., to the Academy. 



Since writing the above a fine specimen of this species has 

 been found much larger in size ; a matter of not uncommon oc- 

 currence among the Cyprceadce. 



2. C. helen^, Roberts. PI. 15, f. 7—10. 



Description. — Shell cylindrically ovate ; spire depressed ; 

 sides slightly margined, pitted with a few brown dots ; base 

 somewhat convex, white ; teeth small, those on the outer lip 

 strong ; those on the inner lip not so strong, but more numer- 

 ous; aperture linear, gaping anteriorly; back light stone color, 

 minutely dotted with white spots varying in size; both extremi- 

 ties painted on each side with a dark-brown spot. Length 

 11^ m. ; alt. 5 m. 



Hob. ? Mus. Acad. Nat. Sci. 



I take pleasure in dedicating this species to Miss Nellie 



