PLATE VIII. (continued). 



FIGS. PAGE 



12, 13. Natica rogersi sp. nov. ... ... ... ... ... ... 173 



I2a. Apertural aspect. Cliff on Buck Kraal, Sunday's River 

 (136h). 13, 13a, same locality and number. 



14. Natica? mirifica sp. nov 174 



14a. Apertural aspect. Cliff on Buck Kraal, Sunday's River 

 (137h). 



15, 16. ActcBonina atherstoni (Sharpe) ... ... ... ... ... 176 



15a. Apertural aspect. Cliff below the old school-house on the 

 right bank of Sunday's River, Dunbrodie (283). 

 16a, x 2 ; 166, apertural aspect, x 2. Grass Ridge, three miles 

 east-north-east of Uitenhage (333). 



17. Acfceonina cf. atherstoni (Sharpe) ... ... ... ... 177 



17a. Apertural aspect. Cliff W. 20 S. from Comley's House, 

 Sunday's River (95h). 



18. Limncea remota sp. nov. ... ... ... ... ... ... 178 



ISa. Apertural aspect. Cliff on Buck Kraal, Sunday's River 

 (138h). 



19. Plnjlloceras rogersi sp. nov. ... ... ... ... ... 179 



19a. Apertural aspect ; 19?), part of septal suture, x 2 ; 19c, 

 portion of surface ornamentation, x 6. Kloof behind Colchester, 

 Sunday's River (3h) ; from the middle beds. 



20, 21. Bocliianites glaber sp. nov. ... ... ... ... ... 181 



20. Anti-siphonal view. From the road below the railway cutting, 

 one mile from Rawson Bridge on the main line, up side (277) ; 



21, septal suture of another specimen at an immature stage, x 10. 

 Same locality in Zwartkop's River valley (338). 



22. Meyeria scluvarzi sp. nov. 212 



Specimen with the rostral region of the carapace broken off, 

 viewed from the left side. Bare slope W. 30 S. from the middle 

 of Barkly Bridge, on the farm Olifant's Kop, Sunday's River 

 (37h). 



