Monograph on the Cj/prceidce, hy Mr. Gray. 145 



spirited lithographic couchological prints, that I am indebted for 

 the knowledge of this shell; but I have since procured a second 

 specimen, and it may not be rare, as I have heard of two or three 

 others, one of which is in the collection of Mr. J. F. Stephens. 



16. Cyprwa lurida. 



Testa ovalo-ovata, albido-cinerea, lurida fusca, late quadri- 

 fasciata ; basi subconvexa carnea ; lateribus incrassatis, pallida 

 fuscis; extremitatibus luteis^ nigro bimaculatis; apertura denti- 

 busque albis. 



Cypraea lurida. Lin. Sys. Nat. \17 5 \ Martini']. ^M. Born. 

 Mus. 178. Schroeter Einl. '}. 103. Gnielin 3401. Schreiber^s 

 Conch. 57. Lamarck Ann. Mus. xvi. 89. Hist. iii. 384 ! Dill- 

 wt/n R. S. 443 ! 



Icon. Bonanni Rec. iii. f. 231. Kirch, iii. 250. Lister Conch. 

 t. 671. 17 ! t. 673. 19 ! Gualtier t. 13, f. E. I. Argenville t. IS, 

 f. C. Jdunson t. 5, f. D. Favanne t. 29, f. C. 4. Martini'^ t. 30, 

 f. 315 ! Ency. Method, t. 334, f. 2. 



2. Decorticata. Testa nigro-fusca ; lateribus fuscis. 



Inhabits the Atlantic Ocean, Isle of Ascension, Lister. Sicily, 

 Bonanni. Senegal, Adanson. BrnzW, Martini. Naples, ^WroBCwrf. 

 Adriatic Sea, Brocchi. Mus. Brit. Sowerb. Nost. 



Shell ovate, bluish white, with four broad livid brown bands, 

 (only allowing two or three narrow pale bands to appear) ; base 

 rather convex, flesh-coloured ; margin thickened, pale brown, 

 slightly produced and margined, especially at the two extremities, 

 which are pale yellowish, and marked with two largish browa 

 spots; aperture scarcely dilated in front; teeth small, distant,white; 

 columella smooth, front concave, with the innermost part slightly 

 denticulated ; spire small, convex ; inside purplish white ; axis 

 1 J, diamoter 1 inch. 



Varies considerably, 1st. in shape, being more or less oval or 

 elliptical, and in (lie margin, being more or less thickened; 2nd 

 in the distinctness of the bands. 



1 7. Cyprcea cincrea. 



Testa subovato-cllipttca, cincrea, obscure trifasciata; basialbidi 



