PLATE II. 



CRETACEOUS SPECIES. 



Fig. 



1 to 12 and 33. Magas pumilus. A series of passages and varieties — enlarged: figs. 2, 



4, and 5, resemble Sowerby's type. 



,, „ Interior of larger or dental valve. 



„ ,, „ smaller valve, enlarged. 



,, „ Profile of the interior of both valves. 



Terebratulina gracilis. Different specimens and varieties, enlarged. 



12". 



12*. 



12'. 



13, 14, 16, 17. 



15. 



18 to 28. 



19". 



29 to 32. 



striata. 



Terebratula oblonga. 



Interior of smaller valve, enlarged. 



Various forms, varieties, and ages, from different 

 deposits, enlarged. 



Interior of smaller valve, enlarged. 



Various specimens and varieties, enlarged. 



