Yol. XXviii.] PALEONTOLOGY OF LANCASHIRE COAL MEASURES. 671 



attracted the attention they deserve, and we are quite sure 

 that further study in this direction will result in bringing 

 the Middle Coal Measures more nearly into line with the 

 Upper series. 



The fauna of the Upper Coal Measures so far as we have 

 been able to trace it, includes the following genera and 

 species. 



Vermes. 



Spirorbis pusillus. 



In beds Nos. 5, 12, 25a, 26 and 28 U.C.M. at Slade 

 Lane, Longsight. (L. 1006, L. 996, and L. 1021, e. coll. 

 Boeder, M.M.) 



From U.C.M. at Ardwick, Manchester (M.M.). 



As " Spirorbis carbonarius " recorded by Binney from all 

 the limestones in the Upper Coal Measures of Ardwick, 

 Manchester. (Trans. Manch. Geol. Soc, Yol. YL, p. 42.) 



See also Salter, Geol. Surv. Mem., Geolog}^ of Country 

 around Oldham, p. 66. 



As '' Spirorbis carbonarius " recorded by Salter from thin 

 red and black shales, and calcareous layers at Patricroft. 

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

 Bolton-le-Moors, p. 44.) 



Over the Bradford four-feet seam, in a bed of limestone 

 one foot thick, 18 yards above the coal, and amongst plants 

 and Anthracomya near to the seam. (Gerrard, Trans. 

 Manch. Geol. and Min. Soc, Yol. XXYIII., p. 560.) 



Spirorbis helicteres. 



In beds Nos. 5 and 28, U.C.M. at Slade Lane, Longsight. 

 (L. 992, e coll. Boeder, M.M.) 



Spirorbis sp. 



In beds Nos. 6, 26 and 28, U.C.M. at Slade Lane, 

 Longsight. (L. 1012 and L. 1019, e coll. Boeder, M.M.) 



