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SUPPLEMENT TO THE BRITISH 



Obs. Mr. Terquem's description of this Lingula agrees with ours ; he also gives as its 

 dimensions 3 lines by 4. His description is unfortunately unaccompanied by a figure ; 

 but having received from Mr. Terquem several good typical examples, I have in fig. 25 

 made up the deficiency. L. lonyo-viciensis is less lanceolate than L. Cranea, but 

 approaches to it in shape and dimensions. On an internal cast two diverging lines 

 from the beak give it much of the character of Dall's genus Glottidia. I am also 

 informed by Mr. R. Tate that specimens of L. vetiusta, Simpson, in the Whitby Museum, 

 are characteristic forms of the species. 



Position and Locality. — In England L. longo-viciensis is stated by Dr. Oppel to occur 

 in the Alum Shale of Whitby in Yorkshire ; but he was not correct in considering the 

 Patella lavis, Sow., M. C, Tab. 139, fig. 3, a synonym of the shell under description. 1 

 According to Mr. Tate, it occurs rather abundantly in the Upper Lias at Long 

 Acres Pit, Skelton ; and at Pit Sinking, Saltburn, Sigston Wood, three miles north of 

 North Aterton in Yorkshire. It has also been found by Mr. Blake at Arncliff and 

 Glaizedale in the same county. Mr. Terquem observes that the shell occurs in great 

 abundance, in blocks of limestone, in the Middle Lias of Gorcys, Rodange, near Longwy 

 in Erance, where it is accompanied by Monotis substriata, Ammonites communis, 

 A. bifrons, and A. Bequianus ; he has also found some rare examples near the village 

 of Vaux, also at Chanderbourg. It was collected by Messrs. Chapuis and Dewalque in 

 bituminous schists, at Grand-Cour in the province of Luxembourg. 



4. Lingula Davidsoni, Oppel. Sup., PI. IX, figs. 23, 23 a. 



Lingula Davidsoni, Oppel. Die Jura-Formation, p. 109, 1856 ; and Ueber die 



Brachiopoden des unteren Lias ; Abdruck a. d. Zeit- 

 schr. d. Deutschen Geol. Gesellschaft,' p. 536, pi. x, 

 figs. 3 a,b, 1861. 



Shell small, narrow, longitudinally oval, depressed, with radial striae and concentric 

 lines of growth. 



Length 4, width 2 lines. 



Obs. I have never seen this shell, which Dr. Oppel states to occur in the Lias (Am. 

 oxynotus shales) in Gloucestershire. It appears to be nearly allied to Liny, loiiyo-viciensis 

 in shape and dimensions, but separable on account of its radial striae. 



There must be added to the Linyula above described an imperfectly preserved longi- 

 tudinally oval species with pointed beak, 6 lines in length by 2-| in width (PI. IX, fig. 31). 

 It is quoted by the Rev. P. B. Brodie at p. 43 of the ' Proceedings of the Warwickshire 

 Naturalists' and Archaeological Eield Club, 1872/ as having been found by him in the 



1 ' Die Jura-Formation,' p. 26G. 



