PLATE 125. 



Conch arid a. 



Fig. 1. Conchopsis aspidium, n. sp., 

 Lateral view, from the left side. 



Fig. 2. Conchopsis aspidium, n. sp., . 



The hinge of another specimen, in which the two valves are connected by 

 - ligament (as in figs. 8 and 9, PL 123). 



Fig. 3. Conchopsis orbicularis, n. sp., 

 Lateral view, from the left side. 



Fig. 4. Conchopsis navicula, n. sp., , 



Lateral view, from the right side. In the lower (posterior) half of the 

 figure is visible the central capsule with its dark nucleus, in the 

 upper (anterior) half the pheeodium with two broad sagittal wings. 



Fig. 5. Conchopsis navicula, n. sp., . , . . x 



Three single pores with their hexagonal external frame and the dilated 

 internal ovate or ampullaceous channel. 



Fig. 6. Conchopsis navicula, n. sp., . 



Hinge of the shell, from the right side. 



Fig. 7. Conchopsis compressa, n. sp., 



Lateral view from the left side. The triangular central capsule with the 

 dark nucleus is visible. 



Fig. 8. Conchopsis compressa, n. sp., 



Dorsal view of the upper valve with its keel. 



Fig. 9. Conchopsis pilidium, n. sp. , . 



The two valves separated and seen obliquely, half from the lateral, half 

 from the internal side. The inner opening of each valve is bordered 

 and partly closed by a broad horizontal velum or diaphragm like the 

 deck of a boat. 



Diam. 

 150 



300 



x 200 



x 150 



400 



400 



150 



x 150 



80 



1726 



1726 



1725 



1727 



1727 



1727 



1725 



1725 



1726 



