C. cancellatus, Sow. Jun. Conch. lUustr. f. 104. 104. 

 a. b. 105. 



Ohs. This minute species is narrower, more elevated, 

 and more distinctly striated, than the preceding. 



Sp. 6. C. ALBUS. 



Descr. Shell oval, depressed, sub-carinated, lightly 

 and minutely granulated ; margin scaly. 



C. albus, Linn. Syst. Nat. ? Mont. test. Brit. 



Brown, var. C. Aselloides, Lowe, Zool. Journ. v. 

 pi. V. f. 5. 



C. albus and var. Sow. Jun. Conch. Illustr. Chiton 

 99. 99. a. 100. 



Ohs. Mr. Lowe, in a subsequent communication, 

 states that his C. Aselloides is a variety of the C. albus, 

 of Montagu. The latter may or may not be the C. 

 albus, of Linnaeus. It differs from the preceding in 

 the arrangement of the granules, not being linear, 

 and from C. marginatus in the large size, and regular 

 arrangement of the granules, or rather scales of the 

 marginal integument. 



Sp. 7- C. L^VIS. 



Dexr. Shell apparently smooth, but finely granu- 

 lated, narrow, carinated : margin broad, velvety to 

 the eye, but finely reticulated. 



C. laevis. Pennant, Brit. Zool. 4. t. 36. f. 3? Lowe, 

 Zool. Journ. vol. 5. p. 98. pi. 5. f. 1. 



C. marginatus, Linn. Trans, viii. pi. 1. f 2. 



