THE BRITISH FOSSIL BRACHIOPODA. 261 



14. Terebratula gravida, Szajnocha. Dav., Appendix to Supplements, Vol. V, PI. 



XVIII, figs. 17,17 a, 5. 



Terebratula gravida, Szajnocha. Ein Beitrag zur Kenntniss der jurassichen 



Brachiopoden, Sitz, Akad. der Wissensch., 

 Bd.lxxxiv, pi. ii, fig. 3, 1881. 

 — S. S. Buckman. The Brach. from the Inf. Ool. of Dorset, 



Proceed, of the Dorset Nat. Hist. Club, 

 vol. iv, p. 46, 1882. 



Shell subpentagonal, longer than wide, broadest anteriorly, tapering posteriorly, sides 

 rounded, nearly straight or very slightly curved in front. Dorsal valve very convex, 

 narrow, and much incurved, inflated at the umbo, flattened along the middle ; anteriorly 

 front line slightly raised with sometimes a tendency to biplication. Ventral valve very 

 convex and slightly keeled ; beak small, very little produced and truncated by a small 

 circular foramen lying close to the incurved umbo of the opposite valve ; lateral portions 

 of the beak slightly concave. Surface smooth, marked only by a few concentric lines of 

 growth. 



Length 14, breath 11, depth 10 lines. 



Obs. — In his memoir above alluded to, Mr. S. S. Buckman refers the species under 

 description, with some uncertainty, to T. gravida, Szajnocha, and adds that the junction 

 of the valves is much straighter in the single figure he gives of his species. 



The general appearance of some of the specimens collected by Mr. S. S. Buckman from 

 the Inferior Oolite near Half-way House, in Dorsetshire, bears so close a resemblance to 

 Szajnocha's figure that I believe one may safely refer them to it. The shell has a very 

 peculiar aspect difficult to describe, and which distinguishes it from its congeners. It 

 is also remarkable that associated with it, both in England and in the Carpathian 

 Rocks, we find Terebratula Cranece of which Szajnocha's Terebratula Hungarica is a 

 synonym. Terebratula gravida seems to vary a good deal in shape, but still preserves 

 its remarkable aspect. 



15. Terebratula Sherbornensis, S. S. Buckman, MS. Dav., Appendix to Supplements, 



Vol. V, PI. XIX, fig. 5, 5 a, b. 



Shell subpentagonal, globose, longer than wide, curved laterally, straight or slightly 

 indented in front. Valves very convex or inflated. Dorsal valve with two slightly 

 projecting, rounded elevations or ribs, commencing to rise at about two thirds of the 

 length of the valve and widely separated by a shallow, slightly concave depression. 



