BRACHIOPODA. 
37 
men moderate ; deltidium triangular, concave ; loop short, simple. 
Lon. 13, lat. 12, alt. 10 lines. 
Terebratula spheeroidalis. Sow. 1825, Min. Con. v. p. 49. t. 435. 
f. 3. 
Deslong. 1837, Soc. Lin. Normand. 
Morris, Cat. p. 136. 
D’Orb. Prod. i. p. 287. 
Dav. Mon. Ool. p. 56. pi. 11. f. 9, 11, 12, 13. 
Fossil. Inferior Oolite. England ; France ; Germany. 
74. Terebratula fimbria. B.M. 
Shell orbicular, smooth when young ; margins more or less 
plaited when adult ; plications rounded, numerous, often sub- 
divided ; beak short, recurved, nearly concealing the deltidium ; 
foramen large and round ; loop simple, short. Lon. 20, lat. 18, 
alt. 13 lines. 
Terebratula fimbria, Sow. 1823, Min. Con. iv. p. 27. t.326. 
Davidson, Mon. Ool. p. 61. pi. 12. f. 6-12. 
Fossil. Inferior Oolite. Gloucestershire; France (Sarthe). 
75. Terebratula plicata. B.M. 
Shell elongated, oval, smooth when young ; margins more or 
less plaited when adult ; plaits short, simple, rounded ; umbo of 
dorsal valve gibbose ; larger valve with a short, scarcely recurved 
beak ; foramen round ; deltidium small ; loop short, simple. 
Lon. 33, lat. 22, alt. 17 lines. 
Terebratula plicata, BucJcman, 1845, Geol. Chelt. pi. 7. f. 6. 
Davidson, Mon. Ool. p. 60. pi. 12. f. 1-5 (not Lam.). 
Terebratula subplieatella, D’Orb. 1849, Prod. i. p. 287. 
Fossil. Inferior Oolite. England; France. 
76. Terebratula suborbicularis. B.M. 
Shell oval, inflated, smooth at the umbones, rather sharply 
plaited round the border; beak laterally compressed, thick, curved, 
truncated by a rather large foramen. Lon. 8, lat. 6, alt. lines. 
Terebratula suborbicularis, Miinst. 1841, Beitr. iv. p. 56. pi. 6. 
f. 4. 
D’Orb. Prod. i. p. 204. 
Terebratula semiplicata, Klipstein, 1844, Beitr. p.214. pi. 15. f. 3. 
Rhynchonella ! semiplicata, D’Orb. Prod. i. p. 203. 
Fossil. Trias. Tyrol. 
