128 
C. Fascicuuaris. Lin. 1105.— Lam. 5.—Mont. f. 
27. f. 5.—Dor. Cat. t.1. f. 1.—Wood. G. C. t. 2. f. 
6.—Turt. D. p. 34.—Lam. 5.—Oblong, apparently 
smooth, but when examined with a glass rough like 
shagreen, except on the elevated dorsal ridge; margin 
surrounded with eighteen tufts of whitish hairs, one at 
the junction of each valve and two in front; dark brown ° 
or cinereous. 0,80...0,40. Common, Margate, Sand- 
wich, Devonshire. 
C. Marernatus. Pen. 4. p.71. ¢. 36. f. 2.—D. p. 
11.—Mont. p. 1.—F. p. 289.— Wood. G. C. t.3.f. 4. 
—Sow. Conch. Ill. f. 106. to 112.—C. Cinerevs. Z. 
J. 2. p.99.— Wood. G. C. ¢.3. f. 5.—Oval, carinated, 
elevated, anteriorly widened, minutely granulated, gra- 
nules not united into a determinate figure; margin 
also minutely granulated; color various. Extremely 
common under stones between low and high water mark. 
Average size, 3. 
C Cinerevs. Lin. 1106.?—Mout. p. 3.—F. p. 
289.—Sow. Conch: Ill. f. 94. to 98.—Black variety, 
C. Asetius, Lowe. Zool. J. 2. t.5.f. 3,4.—Depressed, 
subcarinated, minutely granulated ; granulations on the 
central areas arranged in lines; margin minutely 
grained; color various. On stones, §c. low water 
mark, not uncommon. +. 
