CASSIS. 101 



the latter toothed within^ and denticulated at the 

 base ; sph'e mucronated- 3f . W. 22. 35. 



C. ZEBRA. Ovate, in the young grooved all 

 over^ in the adultbelow^but smooth above; whitish, 

 with longitudinal yellow streaks ; pillar wrinkled 

 below ; lip strongly furrowed ; spire short, conic, 

 decussated. 2}. W. 22. 21. 



C. AREOLA. Ovate_, smooth, shining, whitish, 

 with transverse rows of large yellowish or fulvous- 

 brown spots ; spire short, conic, and decussated ; 

 pillar wrinkled ; lip strongly toothed ; throat 

 brownish. 2i. W. 22. 20. 



** Spire without varices. 



C. RUFA. Ovate-ventricose, very thick and 

 ponderous; red, with many rows of connected 

 tubercles and several noduliferous belts, and the 

 base with two rows of white longitudinal furrows; 

 spire short and mucronated ; pillar and lip thick, 

 bright red, with white wrinkles. 5^. W. 22. 15. 



C. TESTicuLus. Ovate, with close elevated 

 longitudinal and rather distant indented trans- 

 verse striae ; pale reddish, with darker rufous spots 

 either irregularly or in rows; frontal callosity large, 

 sallow, partly tinted with orange ; pillar wrinkled ; 

 lip tootlifed ; mouth elongated, straight, and nar- 

 row; spire short, rounded, and mucronate. 3. 

 W. 22. 18. 



C. SABURON. Ovate - globose, closely fur- 



