﻿JURASSIC AND TRIASSIC BRACHIOPODA. 



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96. Terebratula Jauberti, E. Desl. Sup., PI. XVII, fig. 13. 



Terebratula Jauberti, E. Desl. Brach. Juras., Pal. Fr., p. 1/6, pi. xlv, figs. 8 — 1 1 ; 



pi. xlvi, figs. 1 — 4 ; pi. xlvii, figs. 1 — 4, 1863. 



Shell almost circular or oval ; rather longer than wide. Valves uniformly and almost 

 equally and moderately convex or deep, without fold or sinus. Beak incurved, and 

 truncated by a small circular foramen separated from the hinge-line by a wide deltidhim 

 in one piece. Beak-ridges sharply defined. Loop simple, short. Surface of shell 

 smooth. 



Length 1 inch 4 lines; width 1 inch 3 lines; depth 8 lines. 

 Obs. — I have seen only an incomplete specimen in the Museum of the School of 

 Mines, London, stated to be from the Middle Lias near Ilminster. M. Deslongchamps 

 assures me that it belongs to his Terebratula Jauberti, and that it agrees with the 

 specimens figured by him in his " Brachiopodes jurassiques," pi. xlvii. Our English 

 example agrees well with the types that occur at Bleymard and at a great many other 

 places in France and in Spain. 



97. Terebratula ovoides, Sow. Dav., Ool. Mon., p. 48, PI. VIII, figs. 4, 5 only; 



Sup., PI. I, figs. 12, 13 (14, 15, 16?). 



We have stated all we know concerning this species at pages 9 — 11 of the Drift 

 Supplement. It occurs in the Drift of Suffolk, and it is still uncertain whether it is of 

 Cretaceous or Jurassic age. 



98. Terebratula (?) Hudlestoni, Walker, MS. Sup., PI. XVII, figs. 14, 15, 16. 



Shell elongate ovate, broadest posteriorly, tapering anteriorly ; sides rounded, nearly 

 straight in front. Dorsal valve moderately convex, with a wide, slightly raised, rounded 

 fold, chiefly observable near the front. Ventral valve with a broad, shallow sinus 

 commencing close to the front, and corresponding with the elevation in the opposite 

 valve. Beak small, incurved, and truncated by a circular foramen slightly separated from 

 the hinge-line by a narrow deltidium. Surface smooth, marked here and there by a 

 few concentric lines of growth. Loop not known. 



