38 BRITISH OOLITIC AND LIASIC BRACHIOPODA. 



loop, figured in Plate V, fig. 9. It is also abundant in Germany, and Von Buch gives the 

 following localities : on the Plienback, near Boll, near Eslingen, at Blattenhardt, Denchen- 

 dorff, Gonningen, and between Tubingen and Hechingen, at Eley, near Brunswick, &c. 



Var. Subndmismalis. Fig. 10. 



I have placed here, with some doubts, as a variety, the only specimens of a shell found 

 by Mr. Moore in the marlstone of Ilminster, from having observed, in the collection of the 

 Ecole de Mines, in Paris, specimens of undoubted numismalis, much approaching this in 

 shape. Its beak and foramen are, however, so much larger than that characteristic of true 

 numismalis, that, as is above stated, I am not certain of its "belonging to numismalis, but 

 do not like to make a species formed on the observation of a single specimen. 



32. Terebratula Bakerls;, Bav. Plate V, fig. 11. 



Diagnosis. Shell inequivalved, broader than long ; rostral valve moderately convex ; 

 beak small ; lateral ridge rounded and indistinct ; foramen entire, nearly touching the 

 umbo ; imperforated valve less convex, with front rather suddenly bent downwards in the 

 middle, so as to present a semicircular figure ; the frontal depression is continued along 

 the small valve to the centre, but becomes gradually shallower towards the umbo. Surface 

 smooth, finely punctuated. Length 4, breadth 5, depth 2^ lines. 



Obs. This little shell approaches in form to Ter. nucleata, but has not so incurved a 

 beak, and appears much less deep. Ter. Baherim is stated to have been found in the 

 Inferior Oolite of Bugbrook, by the late Miss Baker, and is now preserved in the Collection 

 at the British Museum. 



33. Terebratula digona, Sow. Plate V, figs. 18, 24. 



Terebratula digona, Sow. Min. Con., 1812, vol. i, p. 217, tab. 96, figs. 1 — 5. 



— — Ency. Meth., pi. 240, fig. 5. 



— — Lamarck. 1819. Anim. sans Vert., vol. vi, No. 19. 



— — Deslotiffchamps. 1837. Soc. Linn, de Normandie. 



— — Smith. Stratigraphical System of Organised Fossils, 1816, 1817- 



— — V. Buch. 1838. Mem. Soc. Geol. de France, vol. iii, p. 194, 



pi. xvii, fig. 6. 



— — Morris. Catalogue, 1843. 



— — Bronn. 1849. Index Palseont., p. 1235. 



— — D'Orb. 1849. Prodrome, vol. i, p. 315. 



Biagnosis. Shell inequivalved, more or less triangular, oblong ; valves convex ; 



