CYPR^EA. 195 



rather more solid, and of a grayish white color. A little shell 

 figured by Sowerby in Thes. Conch., as G. fimbriatula, appears 

 to be a fair illustration of G. semiplota. 



C. THOMASI, Crosse. PI. 19, figs. 14, 15. 



Yellowish brown, spotted whitish and brownish, base white ; 

 teeth small, those on the columella rather obscure. 



Length, *7 inch. 



Hab.? 

 C. SPURCA, Linn. PI. 19, figs. 16, 17. 



Dirty white, clouded and spotted with yellowish brown, pits 

 brown, base white to pale yellowish brown ; teeth strong. 



Length, -75-1-25 inches. 



Mediterranean Sea, E. Atlantic 0. 



Fossil in the Pleistocene. This species is reported as occur- 

 ring in Australia, but specimens sent to Philadelphia so labeled, 

 proved to be C. Jlaveola, Linn., and G. cernica, Sowb. 



C. FLAVEOLA, Linn. PI. 19, figs. 22, 20, 21. 



Yellowish brown, profusely ornamented with white spots of 

 various sizes, which sometimes have a bluish cast ; margins 

 stained and dotted with blackish brown, base white, teeth some- 

 what elongated. Length, -8-1-2 inches. 



Japan, Australia. 



The variety labrolineata, Gask., is of a pale stone-color, with 

 teeth smaller and more numerous. No illustration of this variety 

 having been given, and not having had the privilege of seeing 

 specimens of G. Jlaveola at the time, I was led into the error of 

 describing it as G. Helenas (figs. 20, 21). 



C. CERNICA, Sowb. PI. 19, figs. 23, 24. 



Yellow, dorsal spots white, numerous, those on the margins 

 reddish-brown, extending around the extremities, which, together 

 with the base, are white ; outer teeth strong. Length, -75-1 men". 



Mauritius. 

 Closely allied to C. Jlaveola, Linn. 



C. GANGRANOSA, Soland. PI. 19, figs. 18, 19, 25-28. 



Differs from G. Jlaveola, Linn., in having in addition to the 

 white dorsal spots, which are very small, occasional brown eyes 



