S T R tE A. 



Plate III. 



Species 5. (Mus. Brit.) 



OsTR.E.^ SINENSIS. Ost. lestA solidd, suborbiculari, 

 /usco-subpurjjured, C07icentrice undulatim lameU 

 laid, ad regionem umbonalem mediumque convexo- 

 subjdanulatd, ad inargines laleraks et ventrales an- 

 gvlatim plicatd; valvd inferior i ad marguiem 

 dorsalein utrinque aurild, lanielliferd, albidd, intiis 

 fusco latimarginato, medio fulvo partini nebulato ; 

 impressione musctdari vivide eastaned. 



The Chinese Ostr.ea. Shell solid, suborbicular and 

 brownish purple, concentrically wavUy lameUated, 

 a little convexly flattened at the middle and um- 

 bonal regions, angularly plicated at the lateral and 



ventral margins; lower valve aurited and lami- 

 nated on both sides of the dorsal margin, within 

 broadly bordered with brown, and partly clouded 

 with light brown in the middle ; muscular im- 

 pression bright chestnut. 



Gmelin. Systema Naturae Linnjci. No. 3335. Chem. 

 Conch, f. C68. 



Ostrcea praadamitica, Bolten. 



Hub. Chinese Seas. 



The magnificent specimen from which our illustra- 

 tion is taken is more widely flattened than is generiilly 

 the case. 



October, 1870. 



