Mr. Gray's Monos^raph on the Ci/prceidce. 375 



time that Linnaeus first described it from the note of Mr. J. Zolga. 

 Pr. Solander, according to Mr. Dillwyn, supposed it to be a va- 

 riety of Cyprwa ziczag, figured by IMartinij which is C. undata of 

 Lamarck, and which has a spotted base. It was described by 

 Lamarck as a new species, under the name of C. moniUaris, with- 

 out his taking any notice of the yellow lines; but he refers to the 

 excellent figure of Petiver, iu which they are very evident. 

 Dillwyn placed this species as a variety ofC.Asellus, to which both 

 Linnaeus and Lamarck had compared it, but from which it has 

 several very peculiar differences both in colouring and form of 

 teeth. 



37. Cifprcea Jsellus.—The Wood-Louse Cowry. 



Testa oblongo-ovata, alba, dorso fasciis tribus fusco-nigris or- 

 nata ; basi ina;qualiter subcostata. 



Cypraea Asellus. Lin. Si/s. Nat. 1178. Born. Mas. 185. 

 Schroeter Einl. j. 117. Gmelin 3411. Schi'eiber^s Conch. 68. 

 Lamarck jinn. Mas. xvi. 98. Ilisl. 396. Dillwyn R. S. 456. 



Icon. Bonanni t. 39 f. M. Lister Conch, t. 666, f. 10 ! 

 Rumiihius t. 39, f.M. Petiver Gaz. t. 97. f. 11. Amb. t. 16, 

 f. 18. Gaultier t. 15. f. M. Argenville t. 18, f. F. Adamon, 

 Senegal, t. 5. f. H. Knorr. iv. t. 23, f. 3. Favanne t. 29- f. P. 

 Martini j. t. 27, f. 280. Born. Fig. 171. f. D. Enci/c. Method. 

 t. 58. f. 5. ! 



/3. Jlavescens, Fasciis lutescentibus. 



Gaultier t. 15. f. CC and DD. Martini'}, t. 27. f. 281. 



2. Decorticata. Testi pallide roseS,, obscure albido-fasciata. 



Lihubits Asiatic and African Ocean ; Maldives, Lister. Am- 

 boyna, Rumphius. Senegal, Lister. China, Humphries. Mus. 

 Brit. J. Sowerby, Nost. 



Shell oblong ovate, white, the back ornamented with three 

 brownish or yellowish black bands ; spire flat, covered ; base 

 white, rather cylindrical ; edge rather thickened, and slightly 

 margined on the outer side and extremities ; teeth smallish, partly 

 extended over the base, especially at the hinder part of the inner 

 lip, where they are slightly tubercular ; columella, front flat, 

 plaited ; inside purplish-white , axis -/g, diameter -^'g of an iuch. 



