JURASSIC AND TRIASSIC BRACHIOPODA. 219 



05s. — This species is of about the same size as Bh. amalthei, but it differs from it in 

 the regularity of its ribs, which do not widen as they near the margin. Professor R. 

 Tate, who sent me this fossil, believes it to be new to England, and states that it is very 

 abundant in the Inferior Oolite Marl at Seven Springs, Cubberfield, and the south side of 

 Ravensgate Hill, near Cheltenham. 



226. Rhynchonella subserrata, Munster. 



Rhynchonella fallax, Deslongchamps. Bull. Soc. Geol. de Normandie, vol. vii, 



pi. iii, figs. 1—5, 1863. 



This species is quoted by Prof. R. Tate as having been found in Great Britain (' Geol. 

 Mag.,' vol. vi, Dec, 1869), but I have not seen the fossil; and, as he specifies no locality, 

 I can only reproduce his statement. 



227. Rhynchonella parvula, E. Desl. Sup., PI. XXVII, fig. 21. 



Rhynchonella parvula, E. Desl. In Terry, Mem. Soc. Linn, de Normandie, t. xii 



(Note sur l'Etage Bajocien des Environs de 

 Macon, p. 22, 1860); Etudes critiques sur 

 des Brachiopodes nouveaux ou peu connus, 

 parts 1 and 2, p. 29, pi. v, figs. 5, 6, 1862. 



Shell small, subpentagonal, wider than long, dorsal valve flattened and very slightly 

 convex, divided into three, almost equal lobes, of which the central one forms a wide, 

 flattened, and sharply defined mesial fold. Ventral valve deeper and more convex than 

 the opposite one, with a wide, shallow sinus, the central portion of which is occupied by 

 two longitudinal, angular ribs, one being present on each of the lateral portions of the 

 same valve. Beak small, prominent, with a largish circular foramen, margined and 

 slightly separated from the hinge-line, by a well-defined deltidium. The beak-ridges are 

 sharply marked, leaving a flattened space between them and the hinge-line. 

 Length 4, width 5, depth 2 lines. 



06s. — This elegant small shell exactly resembles the figure given by M. E. Des- 

 longchamps of his Bh. -parvula. A few specimens of it were obtained by Mr. Darell 

 Stephens at Bradford Abbas, in Dorsetshire, where it does not appear to have exceeded 

 the dimensions above given. It is recorded by M. Deslongchamps, from the Inferior 

 Oolite of Milly (Saone-et-Loire), also from Conlies (Sarthe), and Argenton (lndre). 



