Geological Society of London. 127 



merliate between the Silurian on the one hand and the Devonian on 

 the other. He also submitted that their importance, as indicated by 

 their great development in Ireland and Scotland, entitled them to a 

 distinctive name such as that proposed. 



IL— January 25, 1882.— R. Etheridge, Esq., F.E.S., President, in 

 the Chair. 



The following communications were read : — 



1. " On the Fossil Fish-remains from the Armagh Limestone in 

 the Collection of the Earl of Enniskillen." By James W. Davis, 

 Esq., F.G.S., F.L.S. 



The author described in this paper a large collection of fossil jBsh- 

 remains at present at Florence Court, Enniskillen, but which will 

 soon be removed to the new Natural History Museum in the Crom- 

 well Road. The collection comprises, besides specimens collected by 

 the Earl of Enniskillen from the Carboniferous Limestone of 

 Armagh, a large series acquired from the famous collection of the 

 late Captain Jones, M.P., the remaining portion of which is in the 

 Geological Museum of Cambridge. Several genera and species were 

 described by Prof. Agassiz in his " Recherches sur les Poissons 

 Fossiles" (1833-43), and again referred to by (General) J. E. Portlock, 

 F.R.S., in his " Report on the Geology of Londonderry and parts of 

 Tyrone and Fermanagh" (1843). 



In 1854 Prof. M'Coy described many new genera and species in 

 his work on the " British Palgeozoic Rocks and Fossils," principally 

 derived from a study of the portion of Capt. Jones's collection 

 deposited in the Cambridge Museum. Prof. Agassiz paid a visit to 

 Florence Court in 1858, and appended names to some of the fossil 

 teeth in Lord Enniskillen's cabinets, intending to describe and figure 

 the new forms, and to revise the whole of his former work. His 

 death prevented this intention from being carried into effect. As far 

 as possible the determinations of Prof. Agassiz have been adhered 

 to in the present paper. 



The detached and isolated condition in which the remains are 

 found renders any appreciation of the relationship of the teeth and. 

 spines, or even of the teeth only, to each other extremely uncertain 

 and difficult. Some speculations as to the probable organization and 

 characteristics of the Carboniferous fishes which they represent, 

 evolved during a long consideration of the specimens, have therefore 

 been postponed to a future opportunity. 



The following is a list of the genera and species described in the 

 paper : — 



Ctenacantlins plicatilis, C. duhius, C. l(svis, C. piistulatus, G. tubercu- 

 latus, Compsacanthus carinatus, Cosmacanthiis marginatus, G. carinatus, 

 Lispacanthus retrogradus, Gladacanthus paradoxus, G. major, Gnatha- 

 canihus triangularis, Gladodus polyodon, G. curvus, G. destructor, 

 Cnrcharopsis Colei, Gopodus cornutus, C. furcatus, G. spatulatus, 

 C. minimus, Labodus prototypus, L. planus, Mesogomphus lingua, 

 Pleuragomphiis auriculatus, Bliymodus transversus, B. oblongus, Cha- 



