a dorsal striated band; margin rough, hairy, with 

 bunches of bristles on both sides ; inserted laminae of 

 the valves narrow ; colour brown, slightly varied, 

 with one black, and two white, dorsal bands. 



C. fascicularis, Linn. Syst. Nat. p. 1 106. 



Chemn. Conch. 10. t. 173. f. 1688. 



Sow. Jun. Conch. lUustr, f. 87. 87 a. 



Obs. This species is much more depressed than the 

 following ; the valves are closer at the sides, and the 

 granulations coarser. As Linnaeus appears not to have 

 recognized two fasciculated species, it cannot be 

 known which he intended to describe ; but there can 

 be no doubt of the present species being identical 

 with that figured in Chemnitz. 



Sp. 2. C. CRINITUS. 



Descr. Shell oblong; strongly keeled by a dorsal 

 striated rib; valves beaked, reniform, fi:nely granulated 

 at the sides, disunited at the extremities ; margin 

 smooth, hairy, fasciculated ; inserted laminae broad ; 

 colour various. 



Ch. crinitus, Pennant, Brit. Zool. 



Ch. discrepans. Brown. 



Ch. fascicularis, Sow. Gen. of Sh. Wood's Gen. 

 Conch, pi. 2. f. 6. 



Ch. crinitus, Sow. Jun. Conch. Illustr. f. 88, 93. 



Ohs. This being the most common of the two fasci- 

 culated species, has been most frequently figured under 

 the original name ; which, however, it seems to me 



