PHOTO GEAPHIC CONCHO LOGY. 
PLATE VI. CYEENA. 
1 C. incerta, Deshayes, Cat. Conch. Brit. Mus. p. 250. — 3^. 
2 C. prolongata, Prime, Journ. Conch, ix. (1861) p. 356 (as Corbicula p.) — |. 
3 C. nitens, Deshayes (as of Philippi, Zeit. Malak. 1844, p. 163), Cat. Conch. Brit. 
Mus. p. 227, (as Corbicula n.)— |. 
4 C. expansa, Mousson, Moll. Javan. p. 89, pi 14. — 4. 
5 C. occidens, Desh. (as of Benson) Cat. Conch. Brit. Mus. p. 223 (Corbicula o.) — |. 
6 C. Manilensis, Philip. Zeit. Malak. 1844, p. 163.— f. 
7 C. triangularis, Metcalfe, Proc. Zool. Soc. 1851, p. 74.- -3^ 
PLATE VII. CTEENA (continued). 
1 C. limosa, Maton, Trans. Lin. Soc. x. pi. 24, f. 8 to 10. (as Tellina 1.)— 1. 
2 C. Cochinensis, Hanley, Proc. Zool. Soc. 1858.— If. 
3 C. anomala, Deshay. Cat. Conch. Mus. Brit. p. 257. — 2^. 
4i C. radiata, Hanley, Proc. Zool. Soc. 1844, p. 159. — If. 
5 C. oviformis, Deshay. Cat. Conch. Brit. Mus. 245. — 2. 
6 C. " violacea, var ? " of Deshay. Encycl. Method. Vers, ii. p. 49 (as of Lamarck). This 
magnificent specimen, formerly in Bland's Collection, suits the engraving in the 
Encyclopedic M^thodique (pi. 301, f. 1.) which is quoted by Deshayes for viola- 
cea : moreover, in its compression, and oblique posterior corrugations, it harmonises 
with Delessert's figure of Lamarcks shell : the more elliptical shape of the latter 
may be the result of its lesser developement. It does not precisely agree with 
any species in Deshayes' monograph, and is certainly not like the example so 
named by Deshayes in the British Museum. — 3^. 
7 C. tumida, Deshay. Cat. Conch. Brit. Mus. p. 229 (as Corbicula t.) — f . 
8 C. olivacea. Carp. Mazat. Moll. p. 114.— 2. 
9 C. insignis, Deshay. Cat. Conch. Brit. Mus. p. 236 (as Batissa i.). — 2 J. 
10 C. Mexicana, Carpent. (as of Brod.) Mazat. Moll. p. 115. This is C. Eloridana of 
Deshayes, but scarcely so of Conrad. — 1^. 
