PLATE 21 



Gyrocythere grandilaevis sp. nov. 



Figs, i, 2. Dorsal and ventral views, carapace male, x 68. Holotype, Io. 4332. Shales 

 with Alabaster, sample 3463, Rakhi Nala. 



Figs. 3, 4. Dorsal and ventral views, carapace female, x 68. Paratype, Io. 4282. Shales 

 with Alabaster, sample 3463, Rakhi Nala. 



Gyrocythere mitigata sp. nov. 



Figs. 5-8. Left, right, dorsal and ventral views, carapace male, x 70. 

 Lower Chocolate Clays, sample 241 31, Zao River. 



Figs. 9, 11. Dorsal and external views, left valve female, x 70. 

 Lower Chocolate Clays, sample 24131, Zao River. 



Fig. io. Right view, carapace female, x 70. Paratype, Io. 4283. Lower Chocolate Clays, 

 sample 34131, Zao River. 



Holotype, Io. 4333. 

 Paratype, Io. 31 19. 



