CASSIDARIA. CASSIS. 99 
LES PURPURIFERES. 
CASSIDARIA. 
Shell obovate, or ovate-oblong; aperture longi- 
tudinal, narrow, terminating at base in a 
curved sub-ascending canal; lip varicose or re- 
flected ; pillar-lip covering the columella, often 
rough, granular, tuberculous, or wrinkled. 
C. ECHINOPHORA. Ovate-globose, ventricose, 
pale fulvous, with four or five tuberculated belts, 
striated above and below; whorls of the spire 
angulated ; the angle crenated by tubercles. 3¥. 
W. 22. 9. 
C. TYRRHENA. Ovate, with transverse fur- 
rows, of which two of the upper are tuberculated 
and broader than the others; reddish fulvous; 
aperture white; pillar rugose-tuberculated. 33. 
Wea. I. 
CASSIS. 
Inflated; aperture longitudinal, narrow, terminated 
at its base by a short canal, which is curved 
abruptly towards the back of the shell; colu- 
mella plaited or wrinkled transversely ; right 
lip almost always toothed. 
* Spire with varices. 
C. connuTA. Ovate-ventricose, dirty white, 
indistinctly reticulated, slightly grooved, and form- 
