BIVALVE SHELLS. 81 



86. DlONE FLORIDELLA. B.M. 



D. testa elongato-transversa, subtrigona, inaeqmlaterali, depressa, 

 polita, nitida, alba, fulvo vel griseo radiata, diversimodo varie- 

 gata ; antice declivi, obtusa, postice acuminata ; latere postico 

 regulariter transverse striato ; pagina interna alba, s?epius roseo- 

 incarnata. 



Chione floridella, Gray, Analyst, viii. 306. 



Hanley, Descr. Cat. p. 105; in Wood, Sup. pl. 15. f. 1/. 

 Venus Africana, Phil. Ahhild. Conch. i. pl. 1. f. 6. 



Sow. Thes. Conch. p. 738. pl. 169. f. 159-164. 



Hah. Mare Senegalense, Gambia; Caput Bonse Spei. 

 Species duhice. 



87. DlONE PRORA. 



Venus prora, Conrad, Journ. Phil. vii. 253. pl. 19. f. 18. 

 Hanley, Descr. Cat. p. 105. 

 Hah. ? 



88. DlONE OCULATA. 



Venus oculata, Say, Journ. Phil. ii. 274. 

 Cytherea occulta, DeKay, Zool. of New York, v. 216, 

 Hah. ? 



89. DlONE FULMINATA. 



D. testa cordato-trigona, insequilaterali, laevi, albido-fulva, lineis 

 transversis angulanbus rufis cincta; umbonibus tumidis, an- 

 gustis ; ano impresso, vulvaque perampla cordatis. 



Cytherea fulminata, Menke, Syn. Moll. ed. 2. p. 150. 



Hah. Ad Brasiliam. 



Testa ventricosa, valvis intus albis, in fornice macula longitu- 

 dinali cserulea notatis, ad marginem integerrimis ; deute cardi- 

 nali lateris anterioris striato, arcuato. — Menke. 



An eadem species C. varians, Hanleyl 



90. DlONE DENTARIA. 



D. testa triangulari, late transversa, pallide fulva, albo radiata : 

 latere postico intus maculato. 



Cytherea dentaria, Lamk. An. s. Vert. ed. 2. vi. 329. no. 78, 

 Hanley, Descr. Cat. p. 109. 



Hab. Brasilia, prope Rio Janeiro. 



4** 



