﻿JURASSIC AND TRIASSIC BRACHIOPODA. 



77 



•Coral Rag, or in a stone band with corals (' Thecosmilia,' sp. ?) at Wheatley, Oxon. 

 This band is said in ' Damon's Guide of Weymouth' to be the concretionary 

 junction bed, a few inches thick, between the Coral Rag and Kimmeridge Clay. In this 

 the Corals occur, and it is overlain by a stratum of clay charged with fossils of the Kim- 

 meridge Clay. It would not be safe to give a name to this shell from the inspection of a 

 single imperfect specimen. It tapers more at the beaks than is usual with L. ovalis. We 

 figure it here in the hope that a search may be made for better examples. 



■5. Lingula Metensis, Terquem. Sup., PI. IX, figs. 27 — 30. 



Lingula Metensis, Terq. Bull. Soc. Geol. de France, vol. viii, 2nd ser., p. 112, 



pi. i, fig. 9 a, b, c, d, 1850 ; and Paleontologie de la 

 Moselle, p. 15, 1855. 



— — E. Beslongchamps. Etudes Critiques sur des Brachiopodes 



nouveaux ou peu connus, p. 25, pi. iv, 

 figs. 5, 6, 1862. 



— — R. Tate. Geol. Mag., vol. vi, p. 55b", 1869. 



Spec. Char. Shell small, oblong-oval, slightly convex, thickest near the beaks, 

 broadest and rounded anteriorly. 



Length 5, width 2 lines. 



Obs. Mr. Terquem's figure of his species is more regularly oblong-oval than the 

 specimens sent me by that gentleman from Metz (fig. 30). In Plate IX, fig. 29, I have 

 reproduced Mr. Terquem's original illustration, which, as will be noticed, tapers more 

 towards the front than is the case in the larger number of specimens. The shell, figs. 27 

 and 28, from the Lower Lias, or OxynotusheA. of the Docks, Stonehouse, Gloucester, in the 

 possession of the Rev. P. B. Brodie, and others in the Museum of Practical Geology, have 

 been referred to Terquem's species. The fossil is also quoted by the Rev. P. Smithe from 

 the zone of Am. Bucklandi at Churchdown ; and it is mentioned by Mr. R. Tate that 

 a specimen from the Lower Lias in the county of Antrim, in Ireland, is referable to the 

 species under description — a view I can corroborate, having through the kind medium of 

 Mr. Stewart been ablelto compare the Irish example with some sent to me from Metz by 

 Mr. Terquem. The specimens from Stonehouse have their two valves united, and are in 

 an admirable state of preservation, with a black shiny lustre. Mr. Tate informs me that 

 L. Metensis has some affinity with L. longo-viciensis, but is more ovate than elliptical. 

 Solitary specimens should not be accepted as establishing identity of two species. 

 Mr. Terquem's types were obtained from a quarry situated above the village of Valliere, 

 near Metz. " Ou elle caracterise les derniers lits du calcaire a Gryphees arquees, elle est 

 dissemince, les deux valves reunies dans une position perpendiculaire a la direction 

 des couches." Mr. E. Deslongchamps mentions its occurrence likewise at St. C6me-du- 

 Mont (Manche). 



