BRACHIOPODA. 
29 
40. Terebratula Carteroniana. 
Shell roundly angukted, ventricose, smooth ; margins bisinu- 
ated ; beak contracted, slightly cm-ved j foramen small, round ; 
deltidium inconspicuous ; dorsal valve with two small, elevated 
folds in front. Lon. 13, lat. 12, alt. 11 hnes. 
Terebratula Carteroniana, D’Orb. Ter. Cref. iv.p. 80. t.507.f. 1-5; 
Prod. 2. p. 85. 
Fossil. Neocomian. France. 
41. Terebratula arabilis. 
Shell suborbicular, depressed, concentrically ploughed with 
numerous regular shallow furrows ; front margins obscurely bi- 
sinuated; beak recurved, truncated by a large foramen. Lon. 16, 
lat. 14, alt. 7 lines. 
Terebratula arabihs, Forbes, 1846, Trans. Geol. Soc. vii. pt. 3. 
p. 138. pi. 18. f. 12. 
D’Orb. Prod. ii. p.258. 
Fossd. Chalk. S. India. 
42. Terebratula Inca. B.M. 
Shell orbicular, depressed, smooth ; lines of growth very ob- 
scure, except near the margin ; valves nearly equally convex, 
slightly bisinuated in front ; beak short, recurved, obscurely 
keeled at the sides ; foramen large and circular ; deltidium wide 
and short. Lon. 21, lat. 20i, alt. 12 lines. 
Terebratula Inca, Forbes, 1846, in Darwin’s Geol. S. Amer. p. 268. 
pi. 5. f. 19, 20. 
Fossil. Cretaceous limestone. Iquique, Peru. 
43. Terebratula longa. B.M. 
Shell elongated, elliptical, smooth ; margins even, shghtly 
elevated in front ; dorsal valve depressed, pointed at the umbo, 
slightly truncated in front ; ventral valve convex ; beak produced, 
curved, keeled ; foramen rather large ; deltidium distinct, solid. 
Lon. 16, lat. 9, alt. 7 lines. 
Terebratula longa, Zieten, 1830, Petr. p. 52. pi. 39. f. J. 
D’Orb. Prod. i. p. 344. 
Terebratula biplicata, Bronn, Index, p. 1241 (not Sow.). 
Terebratula lagenalis, (not Schl.). 
Fossil. Coral Rag. Wurtemberg; Bavaria; Smtzerland. 
44. Terebratula insignis. B.M. 
Shell oval, smooth ; front margin angularly raised ; dorsal 
valve much flattened from the umbo to the front margin ; beak 
