Monograph on the Cj/prasidaSy hy Mr. Gray. 141 



toward the aperture ; aperture largish, frout rather dilated ; teeth 

 brown, rather distant ; columella deep, front concave ; spire pro- 

 minent, conical, convex, partly covered ; inside violet. 



This shell offers two very distinct varieties, which have been 

 considered as species by most, but they run very closely into one 

 another. 



In one, 1. The shell is subcylindrical, fulvous, the spots are 

 most of them eyed, and the dorsal line is nearly central ; the 

 aperture is not very wide, the base front of the columella is dis- 

 tinctly concave ; this is the Exanthema of most authors, but I 

 am not certain that it is of Linneus, which he compares to Mappa^ 

 and it does not agree well with his character; the first figure 

 which he refers to is certainly C. Jrabica, and the next he has 

 referred to is C. Cervus in his Mantissa, and the last is this 

 species ; the other variety 2. is the C. Cervus of Linneus, where the 

 shell is ovate, elliptical, ventricose, thin, fulvous brown, with the 

 spots usually small, and rarely eyed, the dorsal line is on the side, 

 the mouth is very wide, and the front of the columella is scarcely 

 concave. 



11. Ct/prcea Argus. 



Testa oblongo-elliptica, subcylindrica, subumbilicata, albido^ 

 flavescens obscure trifasciata, annulis fulvis ornata ; basi lateri- 

 busque albidis ; subtus fusco quadri-maculata ; dentibus albidis 

 fusco marginatis. 



Cypraea Argus. Lin. Syst. Nat. 1173. Martini']. 365. Schroet. 

 Einl.]. 97. Born. Mus. 174. Chemnitz x. 109. Gmelin 3398. 

 Schreiber^s Conch, j. 54. Shaw Nat. Misc. Lamarck Ann. Mus. 

 XV. 448. Hist. vii. 376. Dillwijn R. S. 440. 



Icon. Bonanni Rec. S) Kirch, iii. f. 263. Lister Conch, t. 705, 

 f. 54 ! Rumph. t. 38, f. D. Pet. Gaz. t. 97, f. 6. Amb. t. 5, f. 9. 

 Gaultier t. 16, f. T. Klein ost. t. 6, f. 101. Knorr. iii. t. ll,f. 5. 

 Regenfuss t. 5, f. 57. Favanne t. 29, f. B. 2. Martini y t. 28, 

 f. 285, 286. Chemnitz x. t. 145, f. 1344, 1345. Shaw Nat Misc, 

 XV. t. 619. Enc}/. Method, t. 350, f. 1. 



2. Decorticuta. Test;i pallide fusca trifasciata. 



/3. ventricosa. Testa ovata elliptica. 



Indian Ocean, Amboyna, Rumphius. Madras, Java, Bornetr, 



