129 
C. Arsus. Lin. 1107.?—Mont. p. 4.—Sow. Conch. 
Ill. f. 99, 99a., 100.— Brown variety, ASSELLOIDES. 
Lowe. Zool, J. 2. ¢. 5. f. 5.—Oval, depressed, subcari- 
nated, lightly and minutely granulated; margin scaly. 
" Rare, Oban, Se.—Differs from Marginatus in the 
large size and regular arrangement of the granules or 
rather scales of the marginal integument. 
C. Lzvis. Mont: p. 2.—Lowe. Z. J. 2. t=. 5. f. 1. 
p. 97.—F. p. 290.—Sou. Con: Ill. f. 101, 101a., 102. 
—C. Mararnatus. Lin. T. 8. t. 1. f. 2—Apparently 
smooth but finely granulated, narrow, carinated ; mar- 
gin broad, velvety to the eye but really finely reticulated. 
2. Scotland, rare. 
C. Ruper. Lan. 1106.7—F. p. 289.—Sow. Conch. 
ii. f. 103,4.—Lowe. Zool. J. 2. t. 5. f. 2.—Smooth, 
usually mottled red, shining; valves beaked; margin 
minutely granular, 2. Dorset, Scotland, but very 
rare, common in Orkney and Zetland. 
C. Lmvieatus. Fleming, Edin. Ency. 7. p. 103.—- 
F. d. 290.—C. Latus. Lowe. Zool. J. p. 103. t. 5. f. 
6,7.—Sow. Conch. Ill. f. 113, 113a.—Broad, smooth, 
subcarinated, the margin smooth; color white and red, 
FO 
