CYPREA. 127 



C. ASELLUS. Ovate-oblong, white, with three 

 deep-brown zones ; sides and extremities unspot- 

 ted ; teeth unequal. |. W. 17- 38. 



C. MONiLiARis. Ovate, umbilicated, whitish 

 cinereous, with very fine obsolete transverse con- 

 current yellow lines, and three rather livid zones ; 

 base and sides white and unspotted ; teeth nearly 

 equal. |. W. 17. 57. 



C. ciCERULA. Ovate-globose, turgid, beaked 

 at both ends, white or pale fulvous, with raised 

 dots and a dorsal groove ; mouth narrow ; and the 

 lower surface of the shell striated transversely. J. 

 W. 17. 65. 



C. GLOBULUS. Ovate, smoothish, ventricose, 

 sub-globose, beaked at each end, deep saffron, with 

 scattered brown spots ; no dorsal line, f . W. 



17. 67. 



C. HELVOLA. Ovate, turgid; back somewhat 

 livid, with white and stellated brown spots ; sides 

 chestnut ; margin jagged, and, as well as the base, 

 of a rich orange brown, f . W. 17. 53. 



C. STAPHYLEA. Ovatc, livid, with raised white 

 dots, brown and slightly beaked at the extremi- 

 ties ; base furrowed ; a dorsal line, f . As the 

 shell becomes more aged, the surface becomes 

 level and darker. W. 17. 64. 



C. NUCLEUS. Ovate, whitish, with raised 

 wrinkles and tubercles, whereof the lateral ones 

 unite to the furrows of the margin; dorsal line 



