398 Mil. H. BOLTON, F.R.s.E., ON [Feb., 1904. 



From the Bullion Coal of Sholver, four miles North of 

 Oldham. 



(Salter, Geol. Mem. Surv., Geology of the Country around 

 Oldham, p. 62.) 



Shaley Brow, Pimbo Lane (over the Bullion Coal). 

 (Salter, Geol. Surv. Mem., Geology of the Country around 

 Oldham, p. 25.) 



Gastrioceras (Goniatites) coronatum. 



This is a beautiful little shell, only recorded as yet from 

 the roof of the Mountain Four Feet and Bullion Seams of 

 Sharneyford, near Bacup, where it was found by the writer. 



Specimens from the locality are in the British Museum, 

 (C5938) and the Manchester Museum. 



Crustacea. 



Crustacea are very feebly represented in the Lower Coal 

 Measures, both in numbers and species. This is equally 

 true of those forms familiarly known as Ostracoda as of higher 

 forms. 



The development of the Ostracoda group in the whole series 

 of Lancashire Coal Measures is likely to prove an interesting 

 study owing to the fact that specimens are rare in the Lower 

 series, moderately abundant in the Middle Coal Measures, 

 and practically swarm in the Upper series, the increase of 

 genera and species proceeding with the increase of numbers. 



The Ostracoda from the Lower Coal Measures are as 



follows : — 



Estheria striata. 



Recorded from bituminous coal of the Lower Coal Measures 

 by Professor Rupert Jones (Pal. Soc. Mem., Fossil Estheriae, 

 p. 24.) 



Estheria striata, var. Beinertiana. 



Bullion coal. Shaley Brow, near Billinge Hall. (Salter. 

 Geol. Surv. Mem., Geology of the Country around Oldham, 

 p. 35.) 



