BRACHIOPODA. 27 
Terebratula albensis, Leym. 1841, Mm. Geol. iv. 288, 289 ; v. 
11, 29. t. 15. f. 2-4. 
Terebratula bulla, J. Sow. 1850, Dixon’s Geol. Sussex, p. 346. 
pi. 27. f. 11. 
Terebratula semiglobosa, var. y, Broun, Index, p. 1250. 
Reuss, Verst. Bdhm. Kreid. p. 51. pi. 26. f. 5. 
Fossil. Lower Chalk. Sussex; Rouen. 
32. Terebratula Harlani. B.M. 
Shell oval, elongated, thick, smooth, with concentric hnes of 
growth ; dorsal valve moderately convex, raised and flat in the 
centre, depressed at the sides ; margins even, slightly elevated in 
front ; ventral valve deep ; beak thick, recurved, slightly keeled 
at the sides; foramen very large; deltidium nearly concealed. 
Lon. 26, lat. 16, alt. 15 lines. (Lon. 36 lines, Morton.) 
Terebratula Harlani, Morton, 1829, Acad. Nat. Sc. Philad. p. 73. 
pi. 3. f. 1 ; 1834, Syn. Cret. p. 70. pi. 3. f. 1. 
Terebratula Camilla, Morton, Syn. Cret. pi. 9. f. 8, 9. 
Terebratula perovalis ?, Morton, 1829, Journ. Philad. p. 77- pi. 3. 
f. 7) 8 (not Sow.). 
Fossil. Chalk. New Jersey, U.S. 
33. Terebratula fragilis. 
Shell elongated, oval, thin, fragile, smooth, strongly biplicated 
in front; dorsal valve wdth two longitudinal ridges almost its 
whole length ; ventral valve with a prominent central ridge, and 
corresponding lateral depressions. Lon. 21, lat. 12 lines. 
Terebratula fragilis, Morton, 1829, Journ. Acad. Philad. p. 75. 
pi. 3. f. 3, 4; 1834, Syn. Cret. p. 70. pi. 3. f. 2 (not Schl.). 
Terebratula subfragilis, D’Orb. 1850, Prod. ii. p. 258. 
Fossil. Chalk. New Jersey, U.S. 
34. ? Terebratula Toucasiana. 
Shell like T. semiglobosa, but always more depressed, most 
prominent at the front margin. 
Terebratula Toucasiana, D’Orb. 1850, Prod. ii. p. 258. 
Fossil. Chalk. France. 
35. ? Terebratula Vendocinensis. 
Shell small, globular, round, smooth ; front margins sinuated ; 
dorsal valve scai-cely convex. 
Terebratula Vendocinensis, D’Orb. 1850, Prod. ii. p. 258. 
Fossil. Chalk. France. 
C2 
