172 AMERICAN JOURNAL 



DESCRIPTIONS OF NEW CALIFORNIA SHELLS. 



BY ROBERT E. C. STEARNS. 



OCINEBRA, Leach. 

 0. GRACILLIMA, Stearns. PI. 14, fig. 14. 



0. gracillima, Stearns, Prel. Descr. May 18, 1871. 



Description. — Shell small, solid, ovatelv fusiform, rather slen- 

 der ; spire elevated, subacute ; whorls six — seven ; body whorl 

 about two-thirds of the length of the shell ; upper portion of 

 whorls more or less angulated ; aperture ovate, about the same 

 length as the spire ; outer lip thickened, internally white, with 

 four prominent denticles ; columellar lip somewhat excavated, 

 incrusted, with a purplish stain showing through the enamel ; 

 canal closed, moderately recurved ; surface covered with a slight 

 yellowish epidermis and numerous revolving costre of a whitish 

 hue, finely dotted with reddish brown, and the intercostal sulca- 

 tions near the edge of the outer lip with linear markings of the 

 same color ; (one specimen shows brownish blotches upon the 

 middle of the body whorl.) This shell is also longitudinally 

 nodosely ribbed, the ribs decreasing in prominence as the whorls 

 enlarge. 



Length, '50 ; width, -25 inch. 



Habitat, San Diego and vicinity, California. 



One specimen, an adult, dredged in (10 fathoms) San Diego 

 bay ; one adult and five juniors ten miles above San Diego ; also 

 one adult specimen at Dead Man's Island, near San Pedro. 



For this exceedingly pretty species we are indebted to Henry 

 Hemphill, Esq. 



0. circumtexta, Stearns. Plate 14, fig. 15. 



0. circumtexta, Stearns, Prel. Descr. May 18, 1871. 



Description. — Shell ovate, solid, spire subacute, in some speci- 

 mens subturrited ; whorls five, convex or moderately flattened 

 above, upper whorls cancellated ; body whorl nearly three-fourths 

 of the length of the shell ; outer lip thickened, internally denti- 



