Yol. XXviii.] PAL.i:ONTOLOGY OF LANCASHIRE COAL MEASURES. 383 



Bradshaw Brook, half-a-mile below Bradshaw. (Hull, Geol. 

 Surv. Mem., Geology of the County around Bolton-le-Moors, 

 p. 34.) Below the Gannister coal at Eagley Shore Bridge, 

 north of Bolton. (Hull, op. cit., p. 34.) 



In black shale, above shale bed coal (Bassey Mine) at 

 Eushton Colliery, near Blackburn. (Dr. Wheelton Hind, 

 Monog. Carbonicola, &c., Pt. II., p. 159.) 



Carhonicola ( Anthracosia) rugosa. 



A specimen of this species has been recorded from Cant 

 Clough, near Burnley, by Dr. Wheelton Hind, in his Monog. 

 on Carbonicola, &c., by whom it is doubtfully referred to 

 the Yoredales. The horizon from which the specimen came 

 is much more likely to be the Lower Coal Measures. 



Carhonicola {Anthracosia) acuta. 



This species has been recorded from the roof of the 

 Mountain Mine at Bankhouse, Shaw, near Oldham. The 

 valves are curiously elongated, and seem to approach C. 

 aquilina. (W. 539 e. coll. Wild, M.M.) 



Shales over Lower Mountain or Gannister seam, at 

 Stacksteads colliery, near Bacup. Found by the late John 

 Lord, and in his collection. 



Dr. Hind, in his diagrams of the Wigan and Blackburn 

 district (op. cit., p. 159), indicates that this species occurs, 

 in the one case (Wigan) between the Rough Eock and the 

 Lower Foot Coal, and in the other (Rishton, near Blackburn) 

 immediately over the Shale Bed coal (Bassey or Salts seam) 

 in association with C. aquilina and C. robusta. 



The horizon is probably the same in both cases, and 

 identical with that given here for C. aquilina in the 

 Rossendale district. 



In the diagram of the coal measures in the Oldham 

 district. Dr. Hind records C. acuta over the First Coal of 



