530 report — 1878. 



4. Notice of some additional Labyriuthodont Amphibia and Fish from the 

 Coal of Jarrow Colliery, near Castlecomer, County of Kilkenny, Ireland. 

 By William Hellier Baily, F.L.S., F.G.8., M.B.I.A., fyc, Acting 

 Paleontologist to the Geological Survey of Ireland. 



The Geological Survey having recently acquired a number of specimens from 

 Jarrow Colliery, near Castlecomer, through the kindness of Mr. J. Dobbs, the pro- 

 prietor, and Mr. A. McLuckie, manager of the colliery, consisting of amphibian 

 reptiles and fish, in addition to those previously collected from the same colliery, 

 at the request of Mr. Hull, Director of the Survey. The following short descrip- 

 tion of these interesting specimens was given by Mr. Baily. 



This series of fossils consists of more than 50 specimens, all belonging to the 

 vertebrata, 25 of them being amphibia, 20 fish, and the remainder of doubtful 

 character. 



The largest amphibian is one already described by me as Anthracosaurus JEdyei 

 in a paper read before the Royal Irish Academy, January 13, 1873. These remains 

 indicate an animal which must have been from eight to ten feet in length ; they 

 consist of a triangular-shaped head, under jaw, and other portions of the skull, not 

 however in a good condition for study, together with a group of twelve well-defined 

 vertebrae and ribs in much better preservation than those before obtained. 



The other amphibian remains I have identified with the following geneva and 

 species, described by Professor Huxley in the ' Transactions of the Royal Irish 

 Academy, vol. xxiv. (Science), pp. 351, &c. : — 



Keraterpeton Galvani, of which there are four specimens. 



Ophidei-peton Brownriygii, two specimens. 



Dolichosoma Emersoni, three specimens. 



Erpetocephalus rugomis, one specimen. 



There are others evidently amphibian, including two heads, which I have not 

 yet succeeded in identifying ; possibly some of them may belong to one or both of 

 the two genera alluded to by Professor Huxley, but not figured, under the names 

 of Dichospondylus and Brachyscelis. 



The fish remains include a fine example of what I believe to be Megalichthys 

 Hibberti. This great sauroid is here represented by a specimen three feet seven 

 inches in length, the extremity of the tail being deficient. 



Another fine fish, referred to the genus Ccelacanthus, appears to be allied to 

 C. granulatus Agassiz, hitherto confined to Permian strata, only the caudal ex- 

 tremity having previously been known. The skeleton of this fish is very complete, 

 its length being 22 inches, and breadth at commencement of ventral fin six inches. 



In this collection there are also some groups of ribs and other bones, which corre- 

 spond with those of a large fish from the same colliery, named Gampylophuron by 

 Professor Huxley, but which may possibly be identical with the fish we have 

 referred to Megalichthys Hibberti. 



Several specimens of the defence spines of cestraciont fish, Gyracantkus 

 formosus, A.g.,* and a single palatal tooth of Ctenodus, complete the list of fish 

 which have been identified. There are also several detached bones and fragments 

 in this collection of vertebrate remains at present undetermined. 



* G. formosus and G. tuberculatus I believe to be identical, as suggested by 

 Agassiz. 



