PLATE XXXIX. 
Genus—Puxrctromya, de Loriol. 
Fras. 
1. P. anglica, Woods. Lower Greensand (Crackers), Atherfield. Sedgwick 
Museum, Cambridge. a, right valve; 0, ornamentation x 16. 
(P. 238.) 
Genus—ANAtTINA, Lamarch. 
2—4, A. (Cercomya) gurgitis, Pict. and Camp. Lower Greensand. (P. 239.) 
2. Perna-bed, Isle of Wight. British Museum, No. L436. Right valve. 
3. Crackers, Atherfield. Sedgwick Museum. a, part of left valve; b, dorsal 
view ; c, ornamentation near the antero-ventral margin x 12. 
4. Crackers, Atherfield. Sedgwick Museum. a, left valve; 6, ornamentation 
near the antero-ventral margin x 10. 
5. <A. (Cercomya) sp. Upper Greensand, Isle of Wight. British Museum, 
No. 48626. Internal cast. a, right valve; 6, dorsal view. (P. 239.) 
6. <A. (Cercomya) sp. Upper Greensand, Warminster. British Museum, 
No. 88926. Internal cast of part of right valve. (P. 240.) 
Genus—Turacta, Leach. 
7—9. T. Phillipsi, Rom. Speeton Clay, Speeton. (P. 240.) 
7. Mr. Stather’s Collection. a, right valve; b, dorsal view. 
8. Sedgwick Museum. Right valve. 
9. Sedgwick Museum. Left valve. 
10. 1. rotundata (Sow.). Hythe Beds, Lympne. Museum of Practical Geology, 
No. 23470. a, right valve; b, dorsal view. (P. 241.) 
