86 BIVALVE SHELLS. 



laevigata ; umbonibus divaricatim rugatis ; lunula et area dor- 

 sali subpurpureis. 



Cytherea, Savigny, Descr. d^Egypte, pl. 9. f. 3. 

 Circe crocea, Gray, Cat. Cyth. Anal. viii. 307. 



Sow. Thes. Conch. p. 653. pl. 139. f. 49-52. 

 Cytherea crocea, Hanley, Descr. Cat. p. 103. 



Ha6.' Mare Rubrum. 



9. CiRCE OBLONGA, Desh. B.M. 



C. testa ovata, transversa, subsequilaterali, in medio convexa, ad 

 margines acuta, alba, sub epidermide flavescente, transversim 

 regulariter sulcata, sulcis ajqualibus obtusis, postice attenuatis, 

 evanescentibus, margine dorsali antico et postico rectis angu- 

 lum apertissimum inter se formantibus ; latere antico obtuso, 

 postico latiore ; umbonibus minimis appressis ; lunula vulva- 

 que planis lanceolatis, intus paUide purpurascente. 



Hab. ? 



10. ClRCE PLANATA. 



C. testa minima, ovato-trigona, subfequilaterali, depressa, alba, 

 pellucida, transversim tenuiter striata; ambonibus minimis, 

 lunula parva, lanceolata, linea impressa distincta, vulva pro- 

 funda, angusta. 



Gray, in Anal. (1838) Cat. Cyth. p. 30/. 

 Hanley, Descr. Cat. p. 103. 



Hab. ? 



11. ClRCE SULCATA. 



C. testa oblique rotundato-trigona, lenticulari, depressa, rainute 

 transversim sulcata, fusca, vel fulva, aut grisea fulvo fuscove 

 radiata et variegata ; lunula plana, elongato-lanceolata ; area 

 lunulaque minute divaricatim striatis. 



Circe sulcata, Gray, in Anal. (1838) viii. 107. 

 Cytherea sulcata, Hanley, Descr. Cat. p. 103. 

 Cytherea plebeia, Hanley, Proc. Zool. Soc. 1844, p. 109. 



Hanley, in Wood, Ind. Sup. pl. 15. f. 37. 

 Cytherea erythrsea, Jonas, in Phil. Abbild. Conch. iii. 39. pl. 9. f. 2. 

 Circe plebeia, Sow.jun. Thes. Conch. p. 650. pl. 138. f. 33-37. 



Hab. Insulae Philippinenses {Cuming). 



12. CiRCE Artemis, Desh. B.M. 

 C. testa orbiculato-lenticulari, depressa,insequilaterali, transversim 



