PLATE II. (continued). 



FIGS. PAGE 



10, 11. Mytilus uitenliagensis sp. nov. ... ... ... ... ... 82 



10. Eight valve. Cliff on Zoet Geneugd, Sunday's Eiver (64h) ; 



11. left valve. Cliff below the old school-house, right bank of 

 Sunday's River, Dunbrodie (319) ; 11, flat antero-ventral sur- 

 face of both valves (319). 



12. Modiola baini Sharpe ... 85 



12. Left valve ; 12, portion of surface in the lower part of the 

 valve, x 2. One rnile north-east of Eawson Bridge, Zwartkop's 

 Eiver (281). 



13. Nucula uitenliagensis sp. nov. ... ... ... ... ... 87 



Eight valve. Wash-out 100 ft. above Coega station at a point 

 one mile north of Coega Hotel (441g). 



14. Grammatodon jonesi (Tate)... 



14. Left valve ; 14a, the same, x 2. Coega. 



15. Unio uitenliagensis sp. nov. ... ... ... ... ... 89 



15. Eight valve ; 15, frontal aspect. Bezuidenhout's Eiver (323). 



