PLATE Ml. 



Fig 



i. 



Fig 



2. 



Fig 





Fig 



i 



Fig 





Fig 



6. 



Fig 



i . 



pt rum Mann (valval view . Enlarged 375 diameter* Descriptioi 

 — Ptagiogramma sccptrum Maim (zonal view Enlarged 875 diameters. Descriptloi 

 la vidovichii Qrun. (form). Enlarged 550 diameters. Description,] 

 la curvilineata Maim. Enlarged 515 diameters. Description, p»341. 

 Mann. Enlarged 550 diameters. Description, ; 

 iiin ffyrinida Maim. Enlarged 600 diameters. Description, p. :'.i i. 

 Mann. Enlarged 600 diameters. Description, i 







