﻿JURASSIC AND TRIASSIC BRACHIOPODA. 



117 



bifurcation at various distances from the beaks. In the interior of the smaller valve the 

 loop is simple and short, and attached by its crura to the hinge-plate. Shell-substance 

 perforated by small canals. Dimensions variable; not much exceeding one line and a 

 half either in length or breadth. 



05s. — Mr. C. Moore placed fourteen examples of this small species at my disposal for 

 examination ; they all partook of the same character and most of them were about as broad 

 as long. Its loop was not, however, annular, as is generally the case in Terebratulina. 

 As the oral processes are disunited at times in many undoubted specimens of well-known 

 species of the genus, it is possible that other examples of the species under description 

 may have had their oral processes united. Species of Terebratulina are rare in the 

 Jurassic period, and consequently Mr. Moore's discovery is an interesting one. 



Position and Locality. — T. radiata occurs in the Great Oolite of Hampton Cliff. 



73. Terebratulina radiata, var. Dundriensis, Dav. Sup., PI. XIV, fig. 10. 



This variety (or species) seems to be always, as far as the limited material I have been 

 able to examine would warrant, longer than wide and without a mesial depression in 

 either valve. Its striation is similar in character to that of T. radiata, and its dimensions 

 are also about the same. It was found by Mr. C. Moore in the Inferior Oolite at 

 Dun dry. 



74. Terebratulina ? Deslongchampsii, Dav. 



Terebratula Deslongchampsii, Dav. Annals and Mag. of Nat. Hist., 2nd ser., vol. v, 



p. 450, pi. xv, figs. 6, 6 a, 1850. 

 — — Oppel. Die Jura-Formation, p. 263, No. 81, 1856. 



Terebratulina — E. Desl. Bulletin Soc. Linn, de Normandie, 



vol. iii, p. 161, pi. iv, figs. 1 — 3, 1859. 

 Terebratula (Kingena) Deslongchampsii, E. Desl. Pal. Franc., Brachiopodes 



Jurassiques, p. 138, pi. xxxiii, figs. 

 1 and 2, 1863. 



— (?) — C. Moore, Proceedings of the Somerset 



Archaeological and Nat. Hist. Soc. 

 for 1865-6. 



Mr. C. Moore mentions having found this very interesting species in the Middle Lias 

 of Whatley, but, as his specimens have been mislaid, I have not been able to ascertain the 

 correctness of his identification or give a figure of the species. It is, however, very possible 



