628 



56. Cyther_-ea multistriata (pi. cxxxvi. f. 177), Soiucrby, 

 junior. 



Cyth. testa, ovali, subelongata, concentrice striata, fulva, fusco 

 et roseo variegata et interruptim radiata ; latere antico brevi, 

 postico subacuminato ; lunula rubra. 



Shell oval, rather elongated, concentrically striated, buff, varie- 

 gated with pinkish-brown waved lines and interrupted rays ; 

 anterior side rather short, hinder side rather lengthened and 

 acuminated ; lunule rose-coloured, scarcely defined. 



New Zealand, Mr. Hart. Mus. Ctmiiug and Soiverby. 



57. Cyther^ea gigantea (pi. cxxxi. f. 86), Linn. Syst. 

 Nat. GmeL, p. 3282. 



Cyth. testa oblonga, subovali, compressa, lsevi, magna, ru- 

 bescente-fulva, maculis quadratis fusco-nigrescentibus interruptim 

 radiata, intus alba ; latere antico brevi, subacuminato, postico 

 elongato, ad terminum subquadrato; margine dorsali subretuso; 

 ligamento elongato ; lunula oblonga, distincta. 



Shell oblong, rather flat, smooth, large, of a pinkish fawn- 

 colour with broad dark square spots disposed in rays, white 

 within ; anterior side short, but rather narrowed at the end ; 

 posterior side long, rather squared at the end ; posterior dorsal 

 margin rather refuse ; ligament long ; lunule distinct. It attains 

 a much larger size than the specimen figured, which is reduced 

 one-half. 



Gulf of Mexico. 



58. CytheRjEA aurantia (pi. cxxxii. f. 97 bis), Hanky, 

 Sp. of Shells, appendix. Wood, Supp., pi. 15. f. 20. 



Cyth. testa ovali, crassa, laevigata, aurantiaca, intus alba, epi- 

 dermide fusca induta ; latere antico brevi, rotundato, latere pos- 

 tico obscure biangulato, ad terminum subacuminato ; ligamento 

 elongato ; lunula elongata, distincta. 



Shell oval, thick, smooth, of an orange-colour, paling off towards 

 the umbones to a fawn tint, covered with a rather thick reddish- 

 brown epidermis ; ligament long ; lunule long, defined by an 

 impressed line ; anterior side short, rounded ; posterior side with 

 two very obtuse radiating angles, rather acuminated at the basal 

 termination. I figure a fine specimen from Mr. Cuming's col- 

 lection. 



59. Cyther/EA Chione (pi. cxxxii. f. 98), Linnaus, p. 1131. 

 Cyth. testa, ovali, crassa, subcompressa, laevigata, fulva, fusco- 



