627 



52. CYTHERiEA Philtppinarum (pi. cxxxvi. f. 176), Ilan- 

 ley, MS. 



Cyth. testa rotundata, ventricosa, concentrice sulcata, subrosea, 

 maculis et radiis rubescentibus variegata ; latere antico brevi, 

 postico subquadrato ; lunula et marginis dorsalis parte rubris. 



Shell rounded, ventricose, concentrically grooved, of a rosy 

 tint, variegated with purplish-red rays and spots ; hinder side a 

 little squared ; front side short ; lunule and edges of the liga- 

 mental fulcrum reddish. 



Philippines. Cuming. 



53. Cyther^la. FLORIDA (pi. cxxxvi. f. 193, 194, 195, 196), 

 Lamarck, Anim. s. vert. Cyth. no. 20. 



Cyth. testa ovali, subdepressa, concentrice sulcata, subrosea, 

 maculis, lineis, et radiis rubescentibus variegata, intiis plerumque 

 purpureo nebulata; margine dorsali lineato; lunula parva, clis- 

 tincta. 



Shell oval, depressed, concentrically grooved, pinkish, varie- 

 gated with reddish spots, lines, and rays ; anterior side short ; 

 lunule small, distinct ; dorsal margin cross-lined ; inside clouded 

 with purple. 



Locality unknown. 



54. Cyther^a simplex (pl.cxxxvi. f. 182, 183), Sowerbyjun. 



Cyth. testa parva, solida, Isevi, ovata, subdepressa, grisescente- 

 castanea ; margine dorsaH albo, nigrescente-fusco angulatim 

 maculato ; latere antico brevi, rotundato, postico subacuminato ; 

 lunula indistincta. 



Shell small, solid, smooth, depressed, rather oval, of a deep 

 chestnut colour, mingled with dark grey, and at the dorsal margins 

 white, with dark, angular cross markings ; anterior side short, 

 rounded, posterior side rather acuminated. 



In Mr. Gubba's collection. 



55. Cyther^a modesta (pi. cxxxvi. f. 184), Sovjerhy, sen., 

 Pro. Zool. Soc. 1835. p. 47. 



"Cyth. testa obovata, crassiuscula, Isevi, concentrice sulcata, 

 sulcis obsoletiusculis ; albo, fusco et fusco-purpurascente varia ; 

 apicibus subprominulis ; latere postico longiore, dechvi." 



Shell oval, smooth, concentrically grooved, variegated with 

 wliitish-brown and purplish-brown ; hinder side rather lengthened 

 and sloping, so as to meet the vertical margin in an angle. 



Xippixapi, Central America. Cuming. 



