BRACHIOPODA. 
76 
Terebratula Bakeriae, Dav. Mon. Ool. Brack. 1851, p. 38. pi. 5. 
f. 11. 
Terebratula Heyseana, Dunker ? 
Fossil. Inferior Oolite. Northampton (Brit. Mus.). 
67. Waldheimia Heyseana. B.M. 
Shell transverse, somewhat trigonal, winged, smooth ; dorsal 
valve slightly convex, deeply depressed in the centre in front ; 
ventral valve more convex, with a prominent central rounded 
ridge ; beak depressed, ciu’ved, sharply keeled ; foramen minute ; 
deltidium triangular. Lon. 5, lat. 6, alt. 3 lines. 
Terebratula Heyseana, Dunker, 1847, Pal. i. p. 129. pi. 18. f. 5. 
Quenst. Handb. p. 471. t. 37. f. 47. 
Terebratula resupinata, Rcemer, 1836, Nordd. Ool. p. 55. t. 12. 
f. 7 (not Sow.). 
Fossil. Lias. Germany. 
68. Waldheimia hemisph.erica. B.M. 
Shell minute, hemispherical, striated ; dorsal valve flat, or 
slightly concave ; ventral valve convex ; beak recurved, with 
lateral ridges, forming a small flattened hinge-area ; foramen 
rather large, round, incomplete ; deltidium plates disunited. 
Lon. 4, lat. 3^, alt. 2 hnes. 
Terebratula hemisphserica. Sow. 1829, Min. Con. vi. p. 69. t. 536. 
f. 1. 
Desk. 1837, Soc. Lin. Normandie. 
Davidson, Mon. Ool. p. 64. pi. 13. f. 17, 18. 
Terebratella hemisphserica, D’Orb. Prod. i. p. 316. 
Fossil. Bath Oolite. England ; France. 
69. Waldheimia pala. B.M. 
Shell oval when young, afterwards elongated, and truncated 
in front ; sides parallel, straight ; valves smooth, or wdth a few 
lines of growth near the margin ; margins even ; dorsal valve 
flat, with a longitudinal furrow, becoming wide and shallow in 
front ; beak prominent, recurved, laterally keeled ; foramen mi- 
nute ; deltidium wide, solid ; internal septum elongated, pro- 
minent. Lon. 12, lat. 1 , alt. 6 lines. 
Terebratula pala. Buck, 1843, uber Terebrateln, p. 115. t. 3. 
f. 44 ; Mem. Soc. Geol. Fr. iii. p. 228. pi. 20. f. 9. 
Bronn, Index, p. 1244. 
Quenst. Handb. p. 469. t. 37. f. 46. 
Fossil. Alpenkalk. Tyrol. 
E2 
