Vol. XXViii.] PALEONTOLOGY OP LANCASHIRE COAL MEASURES. 381 



Any attempt to record species of these groups, except such 

 common forms as Goniatitfis Listeria would inevitably be 

 rendered nugatory when revision takes place, whilst likely 

 in the meantime to prove misleading. 



The lowest group represented by fossils is that of Vermes, 

 the highest that of Amphibia, whilst the most prolific in 

 point of species and numbers are the Mollusca and Pisces. 



Yermes. 

 "Worm castings and tracks are occasionally abundant in 

 the coarse grits. They are well seen in a coarse, yellow 

 sandstone, lying about 70 feet above the Upper Mountain 

 Mine at Hoyle Hey Clough, Old Meadows, and Broadclough 

 Heights, near Bacup. 



Arenicola carbonaria, Binney. 

 UphoUand Flags everywhere. (Salter, Gfeol. Surv. Mem., 

 Geology of the Country round Oldham, p. 35.) 



Spirorbis carbonarius, Murch. 

 Pimbo Lane (Over Gannister), Bispham Colliery (above 

 Mount. Mine). (Salter, op. cit., p. 35.) 



Spirorbis pusillus. 

 As Microconchus, recorded by E. W. Binney and 

 Professor Hull, from over the Lower Mountain (Bassey, 

 H.B.) Mine, at Billinge. (Hull, Geol. Surv. Mem., Geology 

 of the Country around "Wigan, p. 10). 



.Brachiopoda. 

 Discina orbicularis. 

 Examples of this species have been obtained from the 

 roof of the Four Feet Mine at Colne. *(W466, e. coll. 

 Wild, M.M.) 



* This and succeeding similar references indicate the Register numbers 

 and the name of the collection in which the specimens quoted occur in the 

 Manchester Museum, Owens College. 



