211 
dilated and winged by age ard having a sinus con- 
tiguous to the canal. 
R. Pes. Perecant. Lam. 5.—F. p. 359.—Macgy. 
Aber. p. 173.—StromBvs P. Lin. 1207.—D. p. 656. 
—Mart. f. 848,9,0—List. t. 865. f. 20—Knorr. 3—. 
t. 7. f. 4.—Pen. 4. p. 122. t. 75. f.94.—Don. t. 4. 
Mont. p. 253.—Dor. Cat. p. 46. t. 15. f. '7.—APorr- 
HAIS QuADRIFERUS. Da. Cost. p. 136. t. 7. f. 7.-- 
Turreted, reddish grey, with ten ribbed or rather tuber- 
culated whorls, on the body whorl are two rows of 
smaller tubercles beneath the larger ones; outer lip 
much expanded, digitations three, acute, divaricate ; 
basal canal oblique and subfoliated. 1...0,33. Devon, 
Dorset, Scotland. — 
Trise.—PURPURIFERA. 
Base of the aperture with either a short posteriorly 
ascending canal, or an oblique semi-canaliculated 
notch, directed backwards. 
Genus.—CASSIS. 
Inflated ; aperture longitudinal, narrow, terminated 
at the base by a short canal, abruptly . reflected 
backwards ; pillar with transverse plaits or wrinkles, 
outer lip often dentated. 
C. Bruineata. Flem. p. 339.—Bucciyum B. 
