BRACHIOPODA. 
71 
c. Beak laterally keeled; dorsal valve with a longitudinal depres- 
sion in the centre. 
Terebratulae Carinatse aciitse. Buck. 
Terebratulse Impressae, Quenst. 1851, Handb. p. 469. 
49. Waldheimia impressa. B.M. 
Shell subcircular, polished ; smaller valve flat, depressed in the 
middle in front ; ventral valve convex ; beak recurved, with la- 
teral ridges ; foramen minute ; deltidium double ; loop elongated, 
reflected, lamella very broad ; septum nearlj^ as long as the 
valve. Lon. 9 or 10, lat. 9, alt. 5 lines. 
Terebratula impressa. Buck, 1832, Ueber Terebrateln, Me'rn. Soc. 
Ge'ol. France, 1 ser. p. 226. pi. 20. f. 7, 1838. 
Zieten, Wurt. Verst, p. 53. pi. 39. f. 11. 
Davidson, Mon. Ool. Brack, p. 33. pi. 4.f. 8-10. 
Quenst. Handb. p. 468. t. 37. f. 36, 37. 
Fossil. Inferior Oolite. Dorset; Cheltenham. 
Oxford Clay. Huntingdonshire; Germany. 
50. ? Waldheimia Bern'ardixa. 
“ Shell hke T. pala, but oval-obround, truncated in front, 
enlarged in the middle; small valve much depressed, with a 
furrow in the middle.” 
Terebratula Beruardina, D’Orb. 1850, Prod. i. p. 377- 
Fossil. Oxford Clay. France. 
51. ? Waldheimia labiata. 
Shell smooth, round or oval, depressed, truncated in fr-ont, or 
with the front of the little valve sunk, forming a deep sinus in 
the larger valve. 
Terebratula labiata, D’Orb. 1850, Prod. i. p. 377. 
Fossil. Oxford Clay. France. 
52. ? Waldheimia Chauvinian.x. 
Shell oblong ; obtuse in front ; beak pointed ; small valve 
nearly flat, the other ventricose. 
Terebratula Chauviniana, D’Orb. Prod. i. p. 344, 
Fossil. Kelloway Rockl France. 
