KOCKS OF SOCTTH DE\ ON. 517 



the different members of the Devonian series in relation to one 

 another and to those of other countries. 



Prof. T. RuPEiiT Jones called attention to the distortion of the Os- 

 tracods. He adopted the term Entomis-sh^des, or Entomiden-Schiefer, 

 for the old and incorrect Cypridinen-Schiefer. Having had some of 

 the Author's specimens figured, he exhibited the figures. The genus 

 passed up into the Carboniferous. Kloedenia Wilckensiana, found in 

 the Warberry Grits, also occurs in the Devonian near Saalfeld. 



Prof. Hughes maintained that two horizons occurred at Lumma- 

 ton, the Strim/ocei^halus occurring at the base of the quarry. The 

 limestones often thickened, owing to folding, but he believed the 

 Lummaton succession was a true one. He was quite prepared to 

 follow the Author's explanation of the Saltern-Cove district. 



The AuTHOE, in reply, defended the term slate for the E. serrato- 

 striata beds. If it were definitely proved that Strmrjocephcchis came 

 below the very fossiliferous horizon in the Lummaton quarry, he 

 would be very glad ; but fossils were frequently brought from a 

 distance by the quarry men. 



Q.J.G.8. No. 183. 2o 



