4 



No. 



45 C, variegatum, Sow. jun. Zool. Proc. 1840, Con. Illus. 



f. 57. Ribs much closer than in C. muricatum. 



46 C. unicolor, Sow, jun. Zool. Proc. 1840. Con. Illus. 



f. 29. 42. Brazils. 



47 C. multistriatum, Sow. Zool. Proc. 1833. p. 85. Con. Illus. 



f. 59. St. Elena, Mr. Cuming. 



48 C. maculosum, Wood. Gen. Conch, p. 218, t. 52, f. 3. 



Con. Illus. f. 63. Ceylon. 



49 C. impolitum, Soic.jun. Zool. Proc. 1840. Con. Illus. f. 6. 



66. China. 



50 C. Oxygonum, Sow. jun. Zool. Proc. 1840. Con. Illus. 



f. 9. China. 



51 C. angulatum, Lam. Anim. sans vert. Seba. Mus. 3, t.86, 



f. 6. America ? The grooves of this common 

 species are deep ; the ribs angular and serrated ; 

 the shell oval, ventricose. 



52 C. marmoreum. Lam. Anim. sans vert. Chemn. Conch. 



t. 17, f. 179. Jamaica. Flatter than the last, with 

 the anterior ribs smoother, and not so deep. 



53 C. Orbita, Brod. ^ Soiv. Zool. Proc. 1833. p. 85. Con. 



Illus. f. 13. Isl. Annaa, Pacific. O. More oblique, 

 more closely tuberculated and ribbed that C. mar- 

 moreum. Mr. Cuming. 



54 C. elongatum. Lam. Brug. Diet. No. 26. Con. Illus f. 49. 



(not the figures doubtfully referred to by Brug. Sf 

 Lamar'ck.^ More ventricose, and elongated than 

 the two last, with 39 or 40 flattened ribs; Ticao, 

 Philippines, Mr. Cuming. 



55 C. subelongatum. Sow. jun. Zool. Proc. 1840. Con, Illus. 



f. 61. Ribs fewer and wider apart than in the 

 last. 



56 C maculatum, (Altered from maculosum, preoccupied) 



Sow. Zool. Proc. 1833. p. 85. Con. Illus. f. 18. 

 California. Ribs flattened, nearly smooth; shell not 

 so oblique as C. subelongatum. 



