Monograph on the Cyprceidce, hy Mr. Gray. 145 



spirited lithographic conchological 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. Cyprcea lurida. 



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

 fasciata ; basi subconvexa carnea ; lateribus incrassatis, pallide 

 fuscis; extremitatibus luteis, nigro bimaculatis ; apertura denti- 

 busque albis. 



Cyprsea lurida. Lin. Sys. Nat. 1 175 ! Martini j. 386. Born. 

 Mus. 178. Schroeter Einl. j. 103. Gmelin 3401. Schreiber's 

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

 wyn R. S. 443! 



Icon. Bonanni Rec. iii. f. 251. Kirch, iii. 250. Lister Conch. 

 t. 671. 17 ! t. 673. 19 ! Gualtier t. 13, f. E. I. Argenville t. 18, 

 f. C. Jdanson t. 5, f. D. Favanne t. 29, f. C. 4. Martini j. t. 30, 

 f. 315 ! Ency. Method, t. 354, f. 2. 



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



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

 Bonanni. Senegal, Adanson. Brazil, Martini. Naples, Aldrovand. 

 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 brown 

 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 f, diameter 1 inch. 



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

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

 in the distinctness of the bands. 



17. Cyprcea cinerea. 



Testa subo vato-elliptica, cinerea, obscure trifasciata ; basi albida 



