Plate XXXVII. 



FIGS. PAGE 



1,2. Cardiuni dent lea la tain, 'B&ily ... ... ... ... ... 306 



la, left valve ; lb, interior of same. 

 2. Left valve. Griesbach Collection. 



3-5. Cardium GriesbacJii, sp. nov. Griesbach Collection. ... ... 307 



3a, right valve ; 3b, posterior view ; 3c, anterior view ; 3(/, dorsal 



view. 



4(1, interior of right valve ; 46, hinge x 2. 



5. Ornamentation of right valve x 4. 



6. Protocardia Hilhma (Sow.) var. ... ... ... ... ... 307 



Left valve. 



7. Solccurtiis .^ (Azof .^), STp 308 



Decorticated left valve. 



8. Teredo, sp 309 



Left valve. 



9. Goniomya, sp. ... ... ... ... ... ... ... ... 310 



Eight valve. 



10-12. Porofnya {Liopistha) corrugafa, sp. nov. ... ... ... 309 



Museum of the Geological Society of London. 



10. Left valve. 



11. Right valve. 



12a, right valve ; 12b, dorsal view. 



13. Margarita radiatula (Forh.). Griesbach Collection ... ... 310 



rib X n. 



14,15. Nerita uninarubienfi is, sp. now ... ... ... ... ... 311 



14^^, apical view of 14«. 

 15b, apertural view of 15a. 



16. Nerita kaffraria, sp. nov. ... ... ... ... ... ... 311 



Showing colour markings. 



166, apertural view ; 16c, apical view of livi. 



17, IS. Ptseiidoubelania Sittherlaudi (Baily) ... ... ... ... 312 



18. Apical part of specimen in the Griesbacli Collection x 3. 



