56 



BRACHIOPODA. 



vex ; dorsal valve flat ; beak small ; foramen minute ; loop — ? 

 Lon. 4, lat. 4 lines. 



Terebratella Bourgeoisii, D'Ori. 1847, Ter. Cret. iv. p. 124. t. 518. 



f. 10-16. 

 Terebratulina gracilis, Schl. var. ? 

 Fossil. Chalk. France. 



23. Terebratulina? echinulata. 



Shell ovate-oblong, depressed, closely radiately striated ; striae 

 slightly prickly ; margins bisinuated in front ; foramen round, 

 complete; deltidium solid, concave. Lon. 18, lat. 13, alt. 9 

 lines. 



Terebratula echinulata, Dujardin, 1836, Mem. Soc. Geol. France, 



ii. p. 223. f. 222. 

 Terebratulina echinulata, D'Orb. Ter. Cret. iv. 63. t. 503. f. 7-11. 

 Fossil. Chalk. France. 



24. Terebratulina Santonensis. 



Shell oval, depressed, radiately ribbed ; ribs granulosa, curved, 

 diverging towai'ds the sides; ventral valve convex; area very 

 small; foramen small ; dorsal valve nearly flat. Lon. 9 lines. 



Terebratula Santonensis, D'Arch. 1 83/, Mem. Soc. Geol. France, 



ii. p. 181. pi. 13. f. 14. 

 Terebratella Santonensis, D'Orb. 1847, Ter. Cret. iv. p. 123. 



t. 518. f. 5-9. 

 Fossil. Chalk. France. 



25. Terebratulina parr.\ckna. 

 Shell rounded ; not truncated in front. 



Terebratulina parracena, {Talavignes) D'Orb. Prod. ii. p. 308. 

 Fossil. U. Chalk. France. 



26. Terebratulina megatrema. Bristol Mus. 



Shell " moderately convex, transversely obovate, with a few 

 distinct ribs ; the beak is large and produced, with a very large 

 ])erforation." Lon. 3, lat. 3 lines. 



Terebratula megatrema, J. Soiv. 1836, Geol. Trans, iv. p. 242 

 & 343. pi. 18'. f. 3. 



D'Orb. Prod. ii. p. 172. 

 Fossil. U. Greensand. England. 



27. Terebratulina substriata. B.M. 



Shell oval or subpentagonal, radiately striated ; striae unequal, 

 very fine, dichotomous, crossed by frequent lines of growth ; 



