Terebratula lincklaeni. 



Fig. 22-24. Ventral, dorsal and profile views of a specimen. Page 155 



Ambocoelia umbonata. 



Fig. 25, 26. Dorsal and profile view of a specimen. Page 86 



Rhynchonella tenuistriata. 



Fig. 27, 28, 29. Ventral, dorsal and front view of a specimen. Page 82 



Orthis goodwini. 



Fig. 30-32. Dorsal, ventral and profile view of a specimen. Page 39 



Orthis livia. 

 Fig. 33-35. Ventral, dorsal and profile view of a specimen. Page 40 



Spirifera crispa, var. simplex. 



Fig. 36, 37. Dorsal and ventral view of a specimen. Page 111 



Spirifera raricosta. 



Fig. 38-42. Profile, front, cardinal, ventral and dorsal view of a spe- 

 cimen. Page 128 



