54 BRITISH OOLITIC AND LIASIC BRACHIOPODA. 



Obs. This species, as stated by Mr. Morris in the ' Annals and Mag. Nat. Hist.,' has 

 some resemblance to Ter. perovalis, Sowerby, but is easily recognised by its more elongated, 

 pentagonal, and depressed form, the greater width of the sinus and lobes, the more sinuated 

 front, and the greater prominence of the dorsal ridge ; it is also separated from T. sella, Sow. 

 by its elongated form, the greatest width being nearer the frontal margin than in that 

 species where it is central. 



Ter. Phillipsii is from the Inferior Oolite of Dinnington, near Ilminster, Burton, near 

 Bridport, near Cheltenham, &c. On the Continent it is found in Normandy, in beds of a 

 similar age. Messrs. Moore, Walton, Bunbury, Wright, Deslongchamps, and others, 

 possess fine specimens, and it is also to be seen in the collections of the British Museum 

 and Geological Survey. 



51. Terebratula globata, Sowerbg. Plate XIII, figs. 2 — 7. 



Terebuatula globata, Sow. 1825. Min. Con., p. 51, pi. 43G, fig. 1. 



— Kleinii, Morris, Desk., If Orb., Bronn (non T. Kleinii, Lamarck). 



Diagnosis. Shell subglobose, longer than wide ; beak rounded, recurved, and obliquely 

 truncated by a circular foramen of moderate size, almost touching the umbo, and concealing 

 the deltidium, which is small ; lateral ridges indistinct ; smaller valve very convex at umbo, 

 with two rounded costse, commencing near and extending to the front, where they are 

 slightly produced, with mesial sinus and two lateral ones, corresponding to the elevations 

 in larger valve ; margin of valves much sinuated ; surface smooth, finely punctuated ; loop 

 attached only to crura, and extending to less than half the length of the shell. Width 11, 

 length 13, depth 10 lines. 



Obs. Most authors have attributed Sowerby's T. globata to Ter. Kleinii of Lamarck; 

 M. Deshayes, Morris, D'Orbigny, Bronn, &c. have fallen into the common error, but the 

 kind loan I received of the original collections of Lamarck and Sowerby has enabled me to 

 prove that both species were completely distinct. 1 Ter. globata is one of those shells the 

 continual variations of which render it most difficult to describe. In Plate XIII, I have 

 endeavoured to illustrate a few of its varieties ; figs. 2 and 3 are drawn from Sowerby's types, 

 and fig. 4, from the Inferior Oolite of Dundry, may likewise be considered a good represen- 

 tation of the species. In the Inferior Oolite of Leckhampton and Cotswold Hills, we find 

 a larger variety, which cannot be separated from T. globata, figs. 5, 6, 7 ; it is sometimes 

 almost circular, and at other times so much elongated as to appear to belong to another 

 form, we however find every passage connecting these extremes ; another variety, also, 

 seems to occur in the Pullers Earth, round Bath, offering every possible variation of form 

 and convexity which we believe inseparable from the original type. Mr. Waterhouse and 



1 See Davidson's Notes of an Examination of Lamarck's Species of Fossil Terebratula, 'Annals and 

 of Nat. Hist.,' June 1850. 



