Tin; CROSS fkll inlier. 507 



its southern portion. In this Wock conies the Kcislcy Limestone, 

 to the consideration of which wc must devote a few words. It is 

 well known that the mass of limestone at Keisley, which has been 

 frequently described, is u white or pink crystalline rock, often 

 crowded with fossils. It occupies the southern part of Keisley 

 .Bank, and appears to be of considerable thickness, having a general 

 southerly dip at high angles. That it is faulted against the rhyo- 

 litic series of Keisley Bank, Harthwaite, and Gregory is evident, 

 for it rests on an ash at the east end of the block, whilst to the 

 west it reposes on the rhyolite which forms the summit of Keisley 

 Bank and widens out westward. This fault is also apparently one 

 of low hade. The limestone itself shows signs of much disturbance : 

 it contains twisted wisps of shale in places, and the occurrence of 

 beds containing numerous lUcenl with their convex surfaces uni- 

 formly pointed downwards indicates inversion. A list of the fossils 

 has been previously published, but as additional forms have been 

 found and corrections must be made in this list, we here append a 

 fresh one: — 



Holy sites sp. 

 Lindstroemia sp. 

 Primitia Maccoi/ii, Jones. 

 Amjjyx tumidus, Forbes. 

 Oheiniriis himucronatus, Murch. 



cancrurus, Salt. 



clavifrons, Dalm. (?). 



Ci/jphaspis (?) cf. triradiatus, Tornq. 

 C ijplioniscus socialis, Salt. 

 Cytheropsis johaseolus, His. 

 Homalonotus j)unctillosus , Tornq. 

 lUcenus Bowmanni, Salt. 

 cf. conifrons, Billings. 



— sp. 



Lichas laciniatus, VVahl. 



laxatus, M'Coy. 



Remopleiundes, cf. longicostatiis, Portl. 

 SpliK^rexoclius eahus, M'Coy. 

 Atrypa expansa,, Lindstr. (?). 

 Ortliis ActonicF, Sow. 



2?orcata. Sow. 



testudinar.ia, Dalm. 



vespertilio^ Sow. 



Strophomena corruyatella, I)av. 



deltoidea, Conrad. 



eccpansa. Sow. 



rliomhoiddlis^ Wilckcns. 



Loxo7iema ohscura^ Portl. 



Orthoceras *, cf . elonyatoehwtum, Portl. 



* For notes on this and other Cephalopods, see Appendix II. kindly supplied 

 to us by A. H. Foord, Esq., F.G.S. 



