PLATE XV. 



Astarte (continued). 



Pigs. 



1,2. A. subcostata, d'Orb., var. Lower Greensand (Crackers), Atherfield. 

 Sedgwick Museum. (P. 110.) 



1 a, right valve, x If ; b, anterior view, x H. 



2 a, right valve, X 1| ; b, dorsal view, x 1^. 



3, 4. A., sp. Folkestone Beds, Folkestone. 3, right valve ; 4, left valve. 

 Sedgwick Museum. (P. 111.) 



5-7. A. Omalioides, Woods. Gault, Folkestone. British Museum, No. L 4058. 

 5, 7, left valves; 6, right valve. X 2. (P. 111.) 



8-13. A. formosa, Sow. Upper Greensand, Blnckdown. Sedgwick Museum. 

 All X 3. (P. 112.) 



8. Left valve, 

 it a, left valve ; h, interior. 

 10 a, right valve ; h. dorsal view ; c, anterior view. 



11. Left valve. 



12. Interior of right valve. 



13. Right valve. 



] 1. .1. impolita, Sow. Upper Greensand, Blackdown. The Type. Bristol 

 Museum. Right valve. (P. 113.) 



15-18. A. (Eriphyla) obovata, Sow. Lower Greensand (Perna-bed). Sedgwick 

 Museum. (P. 113.) 



15. Atherfield. Right valve. 

 10. Sandown. Right valve. 



17. Atherfield. a, left valve; h. dorsal view. 



18. Sandown. a, right valve : b, hinge. 



