40 
BRACHIOPODA. 
84. Terebratula antiplecta. 
Shell obovate, ventricose, smooth ; margin strongly sinuated 
in front ; dorsal valve convex, with two front and two lateral de- 
pressions ; ventral valve with three depressions in front ; beak 
not prominent ; foramen minute ; deltidium double, triangular. 
Lon. 8, lat. 1 , alt. 5 lines. 
Terebratula antiplecta, Buch, 1834, Ueber Ter. 80. t. 2. f. 39 ; 
Mem. Soc. Geol. Fr. 1838-39, t. 111. p. 187, ph 17- f. 8. 
Broun, Index, p. 1229. 
Quenst. 1851, Handb. p. 465. 
Fossil. Jura (Alpenkalkl). Near Salzburg, Tyrol. 
85. Terebratula inversa. B.M. 
Shell pentagonal, deeply folded, smooth ; margins strongly 
3-plaited ; dorsal valve flat near the umbo, with two deep angular 
furrows in front j ventral valve with a central and two lateral 
depressions ; beak small. Lon. & lat. 6, alt. 3^ lines. 
Terebratula inversa, Quenstedt, 1851, Handb. p. 465. t. 37. f. 22. 
Fossil. Trias {Alpenkalk). Hallstadt. 
86. Terebratula rbflexa. 
Shell small, subpentagonal, tumid, smooth ; dorsal valve much 
depressed in front, with a small longitudinal ridge in the middle ; 
ventral valve with two longitudinal rounded ridges divided by a 
small central fuiTow, sides depressed ; beak small, curved ; aper- 
tm’e minute ; area very wide. Lon. 4, lat. 4, alt. 2^ lines. 
Terebratula reflexa, Koninck, 1844, Descr. p. 298. pi. 20. f. 4. 
D’Orb. Prod. i. p. 151. 
Fossil. Curb. Belgium. 
87? Terebratula NUCLEATA. B.M. 
Shell subcircular, smooth, with a deep, rounded sinus in the 
centre of the dorsal valve in front ; ventral valve with a slight 
dorsal ridge ; beak very prominent, inflated, recurved ; foramen 
moderate; deltidium concealed; loop very small. Lon. 8, lat. 8, 
alt. 6 lines. 
Terebratula nucleata, Schlotheim, 1820, Petr. p. 281. * 
Buch, Mem. Soc. Geol. Fr. iii. pi. 20. f. 10. 
Zieten, 1830, Petref. p. 63. pi. 39. f. 10. 
Quenst. Handb. p. 469. t. 37- f. 40-45. 
Fossil. Coral Bag. Germany ; France. 
