154 SUPPLEMENT TO THE BRITISH 



that this species was possessed of a short loop as in the sub-genus Epit/igris of King. 

 An internal cast of the smaller valve from Cheltenham, in the possession of Mr. J. E. 

 Walker, shows that the shell was not possessed of a septum, and consequently would 

 belong to those species of Terebratula that are provided with a short loop. This is the 

 more remarkable, as the shell bears much external resemblance to Wold, carinata. 

 It is, however, a much broader shell. 



T. curvtfrons occurs in the lower beds of the Inferior Oolite in England, and is not a 

 rare shell in that formation at Crickley Hill, Cheltenham (Buckman). It is also found in 

 the Inferior Oolite of Leckhampton Hill, Hartley Bottom, and Charlton Common, near 

 Cheltenham. In France it is, according to Mr. E. Deslongcbamps, restricted to the 

 lowest beds of the Inferior Oolite (or Infra-Oolitic marls characterised by Am. 3furchisoni, 

 A. Sowerbyi, and A. primordialis), and can be collected at May and Fresnay-la-Mere in 

 Normandy. It has been met with by M. Jaubert in the departement of the Var, in the 

 zone characterised by Am. MurcMsoni, Lima heteromorpha, Pecten barbatus, &c. Dr. 

 Oppel appears to have found the species in Germany, at the base of the zone of Am. 

 Parkinsoni at Nipf, near Bopfmgen. 



129. Terebratula Boloniensis Sauvage and Rigaux. Dav., Sup., PL XIX, figs. 1, 2. 



Terebratula. Boloniensis, Sauvage et Rigaux. Journal de Conch., vol. xix, 



3rd series, pi. cccliv, 1871, and vol. xx, 

 p. 87, pi. a, fig. 3, 1872. 

 Waldheimia — De Loriol. Mon. des Etages Sup. de la Formation 



Jurassique de Boulogne-sur-Mer, p. 237, 

 pi. xxv, fig. 19, 1875. 



Shell elongated, oval or sub-orbicular, longer than wide, dorsal valve slightly and 

 evenly convex, sometimes much flattened ; no fold. Ventral valve much deeper and more 

 convex than the opposite one ; beak moderately produced, incurved, and truncated by a 

 small deltidium : beak-ridges sharply defined, leaving a flattened space between them 

 and the hinge-line. Surface smooth and irregularly marked at intervals with concentric 

 lines of growth and faint radiating lines. Length 1^ inch; breadth 1 inch 5 lines; 

 depth 8 lines. 



Obs. — This species is remarkable on account of the flatness of its dorsal valve as 

 compared with the ventral one. Messrs Rigaux and Sauvage first discovered the species 

 in the middle Portlandian of Boulogne-sur-mer. It has been well described and figured 

 by them, and by Mr. de Loriol. In 1877, Mr. E. Rigaux, while visiting Oxford, was 

 conducted by Mr. James Parker to the Coral-rag pits at Bullingdon Green (N. E. pit) 

 close to Shotover Hill, and there picked up the fragment we represent (Sup., PI. XIX, 



