Vol. 51.] OF THE MID-COTTESWOLDS. 455 



Terebratula crickleyensis, sp. n. (PL XIV. fig. 8.) 



1878. Terebratula perovalis, var. Kleinii, Davidson (non Lamarck), 'Monogr, 

 Brit. Fossil Brachiopoda,' vol. iv. Pal. Soc. Suppl. pi. xvii. figs. 9, 9 a. 



This is a triplicate form which occurs in the same bed with 

 Terebratula Buckmani. The frontal folds are close together, fairly 

 elevated, and not conspicuously separated. The side-margin is fairly 

 curved. The valves are somewhat regularly convex, transversely, 

 the perforate one, however, being slightly carinate. In many 

 specimens the margins of the valves are thickened, as in the example 

 depicted by Davidson — a sign of old age. 



This shell is not the Kleinii of Lamarck, which is a much broader 

 fossil with more prominent folds. It has been more usually, perhaps, 

 linked with Phillipsiana, notwithstanding that Davidson separated 

 it therefrom. It is not unlike a dwarf Phillipsiana in general 

 aspect, but it is easily distinguished. It is broader and less elon- 

 gate, generally more so than in Davidson's figures ; the frontal folds 

 are much closer together, more elevated, and less separated from one 

 another by any sulcus in the imperforate valve. It has also been 

 called ' Buckmaniana ' ; but if that name be restricted to the sub- 

 cylindrical Cleeve Hill fossil, there is no difficulty in distinguishing 

 this rather flattened, subpentagonal shell therefrom. 



T. crickleyensis occurs at Charlton Common and at Tuffley's 

 (Crickley) in exactly the same bed with Terebratula Buckmani. It 

 has also been found at other localities. 



Terebratula Uptoni, sp. n. 



1878. Terebratula perovalis, Davidson (non Sowerby), 'Monogr. Brit. Fossil 

 Brachiopoda,' vol. iv. Pal. Soc. Suppl. pi. xviii. fig. 11. Type-form ; fig. 10 narrower, 

 more aged variety (figs. 12, 13, young ?). 



Allusion has been made in this paper to a form under the name 

 ' Terebratula aff. Buckmaniana, broad form.' The need of a name 

 seems to be felt by other people besides myself; and I consequently 

 dedicate this species to my friend Mr. C. Upton. 



In its most typical form the shell is nearly circular, with a 

 broadly, feebly biplicate front-margin, and valves which are rather 

 flat. Davidson called it perovalis ; but it is less biplicate and too 

 circular. It is closely allied, genetically, to Buckmani ; but it is 

 presumably a derivative of a more circular form — such would in 

 fact be the parent of Buckmani too. 



Terebratula Uptoni occurs nearly at the top of the Buckmani- 

 grit at Charlton Common — its horizon appears to be about 2 feet 

 below the Gryphite-grit, or 7 feet below the Notgrove Freestone, 

 and it is not uncommon. It is, therefore, some little way above 

 Buckmani. 



Davidson's fig. 11 is a typical form; fig. 10 shows signs of old 

 age ; figs. 12 and 13 are presumably young forms of a somewhat 

 narrow shell, but no side view is given. 



