38 brachiopoda. 



77. Terebratula flabellum. B.M. 



Shell transversely oval, deeply plaited; plaits 7-9, simple, 

 rounded, imbricated by lines of growth ; beak produced, foramen 

 round; deltidium obtusely triangular, double; loop short, simple?. 

 Lon. 5-6, lat. 5-8, alt. 3-4 lines. 



Terebratula flabellum, Defr. 1828, Diet. Sc, Nat. liii. p. 160. 



3Iorris S,- Dav. Ann. Nat. Hist. 1847, p. 256. pi. 19. f. 2. 



D'Orb. Prod. i. p. 316. 



Dav. Mon. Ool. p. 62. pi. 12. f. 19-21. ^ 

 Terebratula palmetta, Deslongchamps, 1837, Soc. Lin. Nor- 

 mandie. 



Bronn, Index, p. 1244. 

 Terebratula septemcostata, Milnster, MS. 

 Fossil. Bath Oolite {Bradford Clay). England ; France. 



78. Terebratula Moreana. 



Shell trigonally ovate, depressed, smooth; margins sharply 

 sinuated ; beak prominent, laterally keeled ; foramen moderate, 

 round ; deltidium small, triangular ; dorsal valve with a sharp 

 central elevated fold and two obscure lateral ridges. Lon. 13, 

 lat. 11, alt. 7 lines. 



Terebratula Moreana, D'Orb. Ter. Cret. iv. p. 79. t. 506. f. 13-16 ; 



Prod. ii. p. 58. 

 Fossil. Neocomian. France. 



79. Terebratula Bentleyi. B.M. 



Shell somewhat pentagonal, smooth ; dorsal valve rather flat, 

 truncated or indented in front, with a central and two lateral 

 elevations ; ventral valve deep, with beak prominent, recurved 

 and keeled ; foramen moderate ; deltidium double, distinct. 

 Lon. 16, lat. 18, alt. 11 mill. 



Terebratula Bentlevi {Morris), Davidson, Mon. Ool. 1851, p. 58. 



pi. 13. f. 9-11. 

 /3. Terebratula sub-Bentleyi, Dav. Mon. Ool. 1851, p. 59. pi. 13. 



f. 11. 

 Fossil. Cornbrash. Rushden, Northamptonshire (Griesbach). 

 Inferior Oolite. (/3.) Minchinhampton (Lycett) ; Ger- 

 many (Brit. Mus.). 



80. Terebratula subcanalis. 



Shell oval, somewhat pentagonal, smooth ; dorsal valve flat, 

 with two diverging furrows ; ventral valve convex, with a deep 



