64 brachiopoda. 



22. Waldheimia Royeriana. 



Shell oval, inflated, smooth or marked (especially near the 

 border) with numerous lines of growth ; rounded and compressed 

 when young ; oblong and shghtly truncated in front when old ; 

 beak obtuse, recurved, keeled; foramen small, round. Lou. 12, 

 lat. 8, alt. 7 hues. 

 Terebratula Royeriana, D'Orb. 1845. 



Murch. Russia, ii. p. 484. pi. 42. f. 33, 34. 

 D'Orb. Prod. 1850, p. 344 & 377. 

 Terebratula vulgaris, Fischer, 1843, Bull. Nat. Moscow, xvi. p. 26 



(not Schl.). 

 Terebratula omithocephala. Id. p. 27. pi. 4. f. 1, 2 (not Sow.). 



Fossil. Kelloway Rockl France. 

 Oxford Clay. Russia. 



23. Waldheimia Strogonofii. 



Shell oval, elongated, slightly truncated in front, ventricose, 

 smooth; margins even; ventral valve most convex; beak rounded, 

 recurved ; foramen moderate, circular ; deltidium nearly con- 

 cealed. Lon. 28, lat. I7j alt. 14 lines. 

 Terebratula Strotjonofii, D'Orb. 1845, Murch. Russia, ii. p. 483. 



pi. 42. f. 31, 32; Prod. i. p. 377- 

 Fossil. Oxford Clay. Russia. 



24. Waldheimia obovata. B.M. 



Shell oval, truncated in front, with obscure angles, smooth, 

 ventricose ; beak short, rather recurved, with short cm-ved lateral 

 ridges ; deltidium more or less concealed ; loop simple, elongated. 

 Lon. 15, lat. 13, alt. 10 lines. 

 Terebratula obovata. Sow. 1812, Min. Con. i. p. 228. t. 101. f. 5. 



Davidson, Mon. Ool. p. 39. pi. 5. f. 14-17- 

 Fossil. Bath Oolite {Cornbr ash). England; France. 



25. Waldheimia lagenalis. B.M. 



Shell smooth, ovate, elongated, ventricose, wide and straight 

 in front ; beak rounded, much recui-ved, with indistinct lateral 

 ridges ; foramen moderate ; deltidium concealed ; loop simple, 

 elongated. Lon. 22, lat. 12, alt. II lines. 

 Terebratula sacculus longissimus, Llhwyd, 1699, Lith. Brit, 1. 10. 



f. 871. 

 Terebratula lagenalis, Schl. Petref. 1820, p. 284. 



Lam. ed. Desh. vii. 



Buch, Mem. Soc. Geol. France, iii. p. 194. pi. 18. f. 7- 



Dav. Mon. Ool. p. 42. pi. 7- f. 1-4. 



Qtienst. Handb. p. 468. t. 37. f. 48. 



