544 Geological Society. 



could be made still more continuous, and there are also other 

 skulls with these processes double-pointed, and so on, which 

 may be mentioned as proving the variation of this bone ; 

 but I think this is enough. 



I do not wish to add any disparaging remarks; but I must 

 say that it seems really better not to burden the already 

 copious nomenclalure with n&w names of subspecies established 

 on such trifling; characteristics. 



'& 



Upsala, 

 May 3, 1900. 



PROCEEDINGS OF LEARNED SOCIETIES. 



GEOLOGICAL SOCIETY. 



December fitli, 1809.— W. Whitaker, B.A., F.R.S., 

 President, in the Chair. 



The following communication was read : — 



' On the Occurrence in British Carboniferous Rocks of the 

 Devonian Genus Paheoneilo, with a Description of a New Species.' 

 By Dr. Wheelton Hind, B.8., F.R.C.S., F.G.S. 



The family NuculidiE is represented in Carboniferous rocks by 

 the genei'a Xucula, Xuculana, and Ctenodonia, and to these must 

 now be added Palcroneilo, which the author describes from two fine 

 specimens in the Museum of Practical Geology, from Carboniferous 

 Shale (Yoredale Shale) south of Hammerton Hall, Slaidburn, 

 Yorkshire. It is remarkable that a genus so well developed in 

 Devonian times should be found at the top of the Carboniferous 

 Limestone Series, but not in intermediate beds. Hall's diagnosis 

 of the genus is given, with additional remarks, and a new species 

 is described and contrasted with Ctenodonta (Paheoneih) lirafa, 

 Phil., from the Devonian of Baggy. 



January 24th, 1900.— W. Whitaker, B.A., F.R.S., 

 President, in the Chair. 



The following communications were read : — 



1. 'Fossils in the University Museum, Oxford: II. — On Two 

 New Genera and Species of Crinoidea.' By W. J. Sollas, M.A., 

 D.Sc, LL.D., F.R.S., V.P.G.S., Professor of Geology in the University 

 of Oxford. 



The first genus and species are founded on two calyces in the 



