602 ME. H. BOLTOX, T.K.S.E., ON [JuHG, 1904. 



Proceedings, Geol. Soc. London, No. 794, p. 81. Also 

 Trans. Manch. Geol. Soc, Vol. XXVIII., p. 198.) 



Cyclus Johnsoni. 

 From roof of the, Fairbottom Mine at Bardsley. Two 

 halves of nodule showing rim of carapace. (W. 1223, e. coll. 

 Wild, M.M.) 



Arthropleura {olim Eurypterus) mammatus (Salter). 

 This species was described from fragments referred to 

 the head, the lateral portions of the body segments, and 

 parts near the tail, found at the pit top of Pendleton 

 Colliery by Messrs. Gibbs & Rhind, and the collectors of the 

 Geological Survey. Quart. Journ. Geol. Soc, Vol. XIX., 

 p. 85. The exact horizon was found to be the "Ferny Metal" 

 under the " Big Coal " or Rams Mine, which is also styled 

 the " Seven-foot Coal," by Salter, op. cit., p. 86. 



Pygocephalm Cooperi (Huxley). 



From coal shale at Medlock Park Bridge, Ashton-under- 

 Lyne. A remarkable form found by Mr. Cooper of Bilston, 

 and described by Professor Huxley, Quart. Jour. Geol. Soc, 

 Vol. XIII., p. 363. Type specimen in the Manchester 

 Museum. Salter states that the specimen was probably from 

 the Black Mine. (Salter, Geol. Surv. Mem., Geology of 

 Country around Oldham, p. 63.) 



From Sparth Bottoms between the Neddy and Poyley 

 Mine at about 60 yards above the latter. The specimen is 

 in the Rochdale Museum.* 



AUACHNIDA. 



Eoscorpius Spnrthensis (Baldwin). 

 From 135 feet above the Royley (Arley) Mine at Sparth 

 Bottoms, Rochdale. (Baldwin & Sutcliffe, Abstract of 



* I have recently had an opportunity of examining Mi-. Baldwin's 

 specimen, and am of opinion that it is more nearly related to Anthrapalaemon 

 than to Pygocephalus. It is in all prohability a new species of the former 

 genus. 



