THE BRACHIOPODA. 45 



zone. Our specimens are mostly about the size of Szajnoclia's 

 figures, but one or two are sligbtly larger. 



Localities. — Bradford Abbas (Dorset), near Gorton (Somerset), 

 also from Balin and Brodla. 



47. — Khynchonella gingensis, Waagen. 



1867. RiiYNCHONELLA GINGENSIS, Wiiagen, Geognotisch Palaont. 

 Beitrage, Table 32 (9), fig. 3. 



A species wbicb is closely allied to Rhynch. sultetrahedra, David- 

 son, but is much, deeper, with a far more convex dorsal valve, 

 and is not nearly so broad. The specimens from this district 

 are fine grown examples of this species, larger than the example 

 figured by Dr. AVaagen. They occur chiefly in the zone of 

 Murchisonae, and less seldom in the zone of Sowerbyi. Dr. 

 Waagen quotes this species from the zone of Sowerbyi, but 

 adds " That it seems to begin somewhat lower, and also to go 

 up somewhat higher."^' This species generally has 5 or 6 ribs 

 on the mesial fold. I have never observed more than 6. 



Dimensions. — Length, 16; breadth, 17; depth, 12 lines. 

 Another specimen — Length, 15; breadth, 16; depth, 11 lines. 

 Dimensions of the figure given by Dr. Waagen — Length, 12 ; 

 breadth, 13 ; depth, 8 lines. 



Localities. — Bradford Abbas (Dorset). Dr. "Waagen quotes it 

 from Gingen (Wiirtemberg), many places in France, and from 

 Gunsberg and Betzenau (Switzerland). 



48. — Thecidium triangulare, d'Orh. 



Thecidium triangulabe, Davidson, British Brach. Palteont. Soc, 

 Supplement, plate xii., figs. 25, 26. 



One specimen of this small Brachiopod was found at Brad- 

 ford Abbas by Mr, Whedborne. I have not seen it. 



Waagen Geogn. Paljiont. Beitruge, p. 639 (133). 



