﻿Vol. 6 I.] OF THE MAEINE BANDS IN THE COAL-MEASTJKES. 



529 



The list of fossil fishes from the bed below the Gin Mine is 

 follows : — 



Acanthodes Wardi, Edg. 



Ccelacanthus elegans, Newb. 



Diplodus gibbosus, Ag. 



Edestus triserratus, E. T. Newton. 



Elionichthys Egertoni, Ag. 



Listr acanthus Wardi, A. S. Woodw. 



Megalichthys Hibberti, Ag. 



Megalichthys intermedins, A. S. Woodw. 



Megalichthys rugosus, Young. 

 Orod,us sp. (?). 

 Platysomus parvulus, Ag. 

 Platysomus Forsteri, H. & Atth. 

 Pleuroplax Rankinei, Ag. 

 Rhizodopsis sauroides (Will.). 

 Sphenacanthus ? (teeth). 



Echinodermata. 



Archceocidaris sp. (PI. XXXV, figs. 1 & 1 a} is represented in 

 the marine band below the Gin Mine by numerous spines, teeth, 

 and a few interambulacral plates. The radioles are very long 

 and slender, with numerous, comparatively-large, opposite spinules, 

 which project upwards and downwards. The plates have the general 

 character of the genus. Some of the material has been submitted to 

 Dr. F. A. Bather, F.G.S., who hesitates to refer the specimens to any 

 particular species, as much uncertainty exists in regard to the type. 



Archceocidaris has been previously noted from the British Coal- 

 Measures. Jukes quotes, on the authority of Edward Forbes, 

 ' an Echinus very much broken up, probably Archceocidaris' in the 

 lower part of the New-Mine Ironstone, Oldbury. 1 



Brachiopoda. 



The Brachiopoda are represented in the Coal-Measures by seven 

 species, and the individuals are nearly always dwarfed. 



LlNGTJLA MTTILOIDES, Sow. (PI. XXXV, fig. 2.) 



This species is not uncommon at several horizons. As a rule, 

 it occurs in a black shale by itself; in the case of the marine band 

 below the Gin-Mine Coal, it is found immediately above the bed 

 containing the other marine shells. The shell is usually much 

 dwarfed, and the biggest specimen that I have seen measures only 

 8 millimetres in its greatest diameter. 



Mr. John Ward mentions the occurrence of Lingula squamiformis 

 from the North-Staffordshire Coalfield, 2 but I think that he was 

 misled by crushed specimens. I have seen no specimens properly 

 referable to this species in his collections. 



Localities. — North Staffordshire: above the Bay Coal; in the 

 roof of the Priorsfield Ironstone ; below the Gin-Mine Coal (two 

 beds); over the Moss Coal; above the Moss Cannel-Coal ; marine 

 band, Weston Sprink ; above the Seven-Feet Banbury Coal ; 71 feet 

 below the Four-Feet Coal, Cheadle ; above the Crabtree Coal. 



Leicestershire Coalfield : at 453, 606, and 663 feet from the 

 surface at Nailstone Colliery. Nottinghamshire Coalfield : 524 and 



1 ' Geology of the South Staffordshire Coalfield ' Eee. of the School of Mines, 

 vol. i, pt. ii (1853) p. 194. 



2 Trans. North Staffs. Inst. Min. & Mech. Eng. vol. x (1890) p. 123. 



Q. J. G. S. No. 24:*. 2 r 



