12 THE BRACHIOPODA. 



zone of Opalinus to the zone of Parkinson!. This is certainly 

 extremely remarkable, since in the whole of this district I have 

 never found Tereb. Stephani in any other zone than that of Cosm. 

 Parkinsoni, and I have always regarded it as peculiarly charac- 

 teristic of this zone. 



Tereb. Stephani bears some resemblance to Tereb. Phillipsi and 

 Tereb. infra-oolithica. It is easily distinguished from the first 

 by its rounder shape and its beak, which slightly overlaps the 

 lesser valve, and from the second by its greater comparative 

 length and depth, and general shape. 



Dimensions. Length 1 inch 10 lines, breadth 1 inch 5 lines, 

 depth 1 inch. Another specimen length 1 inch 8 lines, breadth 

 1 inch 5 lines, depth 1 inch 3 lines. 



Localities. A very abundant shell at Bradford Abbas, Broad- 

 windsor, &c. (Dorset), and Crewkerne Station, Stoford, and near 

 Galhampton, &c. (Somerset), also Dundry (Somerset), according 

 to E. Deslongschamps, and at Bayeux, Sully (Calvados), at 

 Lavergne (Vienne), also in the whole of Burgundy, the neigh- 

 bourhood of Seinur, &c., &c. Also at Stuifemberg, Bopfingen, 

 Brauweberg, and Balingen (Wurtemberg), at Liestal, Aarau 

 (Switzerland), and in Spain. 



4. TEREBRATULA SUBMAXILLATA, Morris. 



TEREBRATULA SUBMAXILLATA, Davidson, British Fossil Brach., 

 PaUeont. Soc., plate ix., figs. 10-12. 



I possess one specimen from Bradford Abbas, which in shape 

 and general appearance agrees very well with specimens of T. 

 submaxillata from, the Cotteswolds. It has, however, very small 

 sinuations. It agrees best with Mr. Davidson's figure 10 on 

 plate ix. of his Jurassic Brachiopoda. 



Localities. Bradford Abbas (Dorset), also near Cheltenham 

 (Gloucestershire). 



