82 



No. 17. WALDHEIMIA, Sp. (?). Plate III., fig. 14-15. 



Among the Brachiopoda forwarded to me by Mr. Darell 

 Stephens, from Bradford Abbas, were two or three specimens of 

 a very elongated WaUlicimia whicli I could not refer, with any 

 degree of certainty, to the other species of the genus from the 

 Inferior Oolite. I have figured it in the hope that more ex- 

 amples of the shell may be collected. 



No. 18. WALDHEIMIA CARDIUM (?), Lamarck. Plate IT., fig. 4. 

 TEEEBEATTJLA CABDITJM, Lam. Anim. Sans. Vert., vol. vi., 1819 t 



One small ventral valve of this species (?) was sent to me by 

 Mr. J. F. "Walker as having been obtained from the Inferior 

 Oolite at Bradford Abbas. The usual stratigraphical position of 

 W. Cardium is in the Great Oolite, and, as I did not find a 

 single other example of the shell among upwards of one thou- 

 sand- specimens kindly lent for examination from the district 

 named, I think that it will be preferable to wait for the dis- 

 covery of other examples before positively asserting that it 

 belongs to the district and formation. 



No. 19. EHYNCHONELLA PLICATELLA, Sow. Plate IV., fig. 9-10. 



TEBEBBA.TTTLA PLICATELLA, Sow. Min. Con., vol. v., p. 167. 

 tab. 503. 



Shell sub-trigonal, sub-globose, longer than wide ; dorsal 

 valve much more convex than the ventral one, forming in profile 

 an almost half -circle, uniformly convex, without fold ; ventral 

 valve moderately convex, with a wide, shallow sinus ; front line 

 semi-circular ; beak acute, incurved ; foramen small and en- 

 tirely surrounded by small deltidial plates ; beak ridges sharply 

 defined ; lateral portions of the valves, near the beak, flattened 

 or pinched in ; surface of valves ornamented by a variable 

 number of ribs, from twenty-six to fifty in each valve ; length 

 eighteen, width seventeen, depth fifteen lines. 



This fine species varies considerably in shape according to 

 age. Some young specimens are of an elongated triangular 



