﻿JURASSIC AND TRIASSIC BRACHIOPODA. 



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100. Terebratula anglica, Oppel. Dav., Ool. Mon., Appendix to vol. 1, PI. A, figs. 



10—13. 



Terebratula anglica, Oppel. Die Jura-Formation, p. 425, 1856 ; Dav., Ool. Mon., 



Appendix, vol. i, pi. a, figs. 10 — 13, 1855. 



I figured this species as probably a variety of T. splicer oidalis, but Dr. Oppel may be 

 correct in separating it from Sowerby's species. It is generally of a circular shape and 

 much thickened at the margin. Some specimens are slightly longer than wide, and 

 somewhat laterally pinched in at the posterior half of the shell. The valves are 

 uniformly convex and smooth, the beak small and much incurved, and truncated by a 

 minute foramen. The loop is not known. It occurs in the Inferior Oolite at Dundry, 

 near Bristol. 



101. Terebratula globulina, Dav. Dav., Ool. Mon., p. 57, PI. XI, figs. 20, 21. 



Nothing new. It occurs in the Upper Lias, zone of Am. bifrons with Bhyn. pygmaa. 



Mr. E. Deslongchamps states that it has been found in the Leptsena-bed, or highest 

 portion of the Upper Lias. The Rev. F. Smithe met with it in the Middle Lias, or zone 

 of Am. spinatus. 



It occurs at Evrecy, Landes, Curcy, Amayi-sur-Gard, and Croisilles in Normandy, 

 also in the Dep. du Gard, near d'Alias, and at the Pic de Saint-Loup, near Mont- 

 pellier. 



Terebratula globata, T. Fleischeri, T. Eudesi, T. Fileyensis, T. bullata. 



These and perhaps two or three more biplicated forms, seem so nearly related that 

 it is often very difficult to determine which of them are distinct species, or if some of them 

 are more than varieties, or variations in shape, of one or more species. 



As Oppel, Deslongchamps, Walker, and others express a decided wish to retain the 

 majority as separate species, it is desirable to meet their views as far as possible. 



102. Terebratula globata, Sow. Dav., Ool. Mon., p. 54, PI. XIII, figs. 2, 3 (Sowerby's 



types) 4 ?, 5, 6, 7 (?) ; Sap., PI. XVII, figs. 1 (2 ?). 



I cannot help repeating what I stated at p. 54 of my Monograph, namely, that 



