Geological Society. 467 



2. ' The Fauna of the Keisley Limestone. — Part I.' By F. R. 

 Cowper Reed, Esq., M.A., F.G.S. 



The Author has examined a very full series of fossils from the 

 Keisley Limestone of Westmoreland, and proposes to describe the 

 fauna of the limestone. In this (first) part of the paper a descrip- 

 tion of the trilobites is given. He recognizes about forty species, 

 belonging to ten families. Several of the forms are new, whilst 

 others have previously been described, and many of them occur in 

 the limestone of the Chair of Kildare and the /^tana-limestone of 

 Dalecarlia. 



April 29, 1896.— Dr. Henry Hicks, F.R.S., 

 President, in tho Chair. 



The following communications were read : — 



1. ' Descriptions of New Fossils from the Carboniferous Lime- 

 stone. — I. On Pemmalites constipatus, sp. nov., a Lithistid Sponge. 

 II. On Palceacis Jmmilis, sp. nov., a new Perforate Coral ; with 

 Remarks on the Genus. III. On the Jaw-apparatus of an Annelid, 

 Eunieites Reiclii, sp. nov.' By George Jennings Hinde, Ph.D., 

 F.G.S. 



I. The Pemmatites, belonging to a genus hitherto only known 

 from the Permo-Carboniferous beds of Spitzbergen, was discovered 

 in tho Yoredale Beds of Yorkshire by Mr. J. Rhodes, and is the 

 only fairly complete sponge which has hitherto been detected in the 

 Yoredale Beds of North- West Yorkshire. The Author gives a full 

 description of the species. 



II. The Palceacis was found by the Rev. G. C. H. Pollen in the 

 Carboniferous Limestone and Shale Series, on the banks of the 

 Hodder, near Stonyhurst. The specific characters of the form are 

 given by the Author, who then remarks upon the genus Palceacis, 

 which has been placed alternately with the corals and sponges, 

 though latterly it has been generally regarded as a perforate coral. 

 Nevertheless its real characters had not been definitely settled : the 

 uncertainty, in the Author's opinion, being due to the fact that some 

 writers have placed in the genus certain forms which differ widely 

 from the typical species, and have then defined the characters of the 

 genus largely from these foreign forms. The Author, in the light 

 of the information now supplied, gives a fresh definition of the 

 genus, which appears to represent a distinct family of perforate 

 corals, in some features more nearly allied to the Favositidae than to 

 the Madreporida3 or Poritidse. 



III. The third specimen was discovered by Miss Margery A. Reid 

 in the Lower Carboniferous Beds of Halkin Mountain, Flintshire, 

 and is named in honour of its discoverer. A description of it is 

 given, and it is stated that, notwithstanding certain peculiarities, 

 the individual pieces correspond so closely with those of the recent 

 Eunice family that it may well be included in the genus Eunieites. 



