128 



C. FASCICULARIS. Lin. 1105. Lam. 5. Mont. t. 

 27. f. 5. Dor. Cat. t.l. f. 1. Wood. G C. t. 2./. 

 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, M argate, Sand- 

 wich, Devonshire. 



C. MARGINATUS. Pen. 4. p. 71. t. 36. /. 2. D.p. 

 \\.-Mont.p. I. P.p. 289. Wood. G. C. t. 3./. 4. 

 Sow. Conch. Ill.f. 106. to 112. C. CINEREUS. Z. 

 J. 2. p. 99. Wood. G. C. t. 3./. 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, f . 



C CINEREUS. Lin. 1106.? Mont. p. 3.F. p. 

 289. Sow. Conch: HI. f. 94. to 98. Slack variety, 

 C. ASELLUS, 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 variou?. On stones, fyc. low water 

 mark, not uncommon. i. 



