PLATE XLVI. 



IxocE KAMI'S {coidlnHod). 

 Figs. 



I — 10. /. eoiicentrictis, Park. 1- — 7, Giuilt, Folkestone. 8 — 10, Upper Green- 

 sand, Blackdown. (P. 205.) 



1. Bi'itish Museiiin, No. L-jOO-J. Ki.^lit valve and inulio of left valve. 



2. Sedgwick Museum, Cambridge. Eight valve and umbo of left valve. 



3. Sedgwick Museum, a, left valve; b, dorsal view of the same. 



4. Sedgwick Museum. «, left valve ; &, anterior view of both valves. 



5. Sedgwick Museum, a, left valve, h, dorsal view of both valves. 



6. Sedgwick Museum. Eight valve. 



7. Sedgwick Museum. Left valve. 



8. Museum of Practical Geology, No. 21183. a, right valve; h, dorsal view of 



the same. 

 y. Sedgwick Museum, a, right valve aud umbo of left valve ; b, dorsal view of 



both valves. 

 10. Bristol Museum. «, right valve and part of displaced left valve ; ?<, anterior 

 view of both valves. 



