Vol. XXViii.] PALEONTOLOGY OF LANCASHIEE COAL MEASUEFS. 677 



Oracanthus sp. 



In limestones, shales, and blackband ironstone of the 

 Upper Coal Measures at Ardwick, Manchester. (Binney. 

 Trans. Manch. Geol. See, Yol. YI., p. 42.) 



Ctenacanthus sp, {f Sphenacanthus), 



In limestones, shales and blackband ironstone in the 

 Upper Coal Measures of Ardwick, Manchester. (Binney, 

 Trans. Manch. Geol. Soc, Yol. YI., p. 42.) 



Gyracanthus formosus. 

 From the Upper Coal Measures of Ardwick, Manchester. 



Gyracanthus sp. 



In limestones, shales and blackband ironstone of the Upper 

 Coal Measures at Ardwick, Manchester. (Binney, Trans. 

 Manch. Geol. Soc, Yol. YI., p. 42.) 



From Upper Coal Measures of Manchester. (Salter, 

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

 p. 67.) 



Ctenodus Murchisoni 



From the Upper Coal Measures of Ardwick, Manchester. 

 Specimens in the Manchester Museum. 



Ctenodus sp. 



In limestones, shales and blackband ironstone of the 

 Upper Coal Measures at Ardwick. (Binney, Trans. Manch. 

 Geol. Soc, Yol. YI., p. 42.) 



" Geratodus sp.'* {? Ctenodus). 



In limestones, shales and blackband ironstone of Upper 

 Coal Measures of Ardwick, Manchester. (Binney, Trans. 

 Manch. Geol. Soc, Yol. YI., p. 42.) 



