Prof. Huxley on a new Labyrinthodont from Bradford. 385 



yellowish -brown loam, containing land and freshwater shells, such 

 as Bithinice and Pupce. 



4. " On the occurrence of Terebratula diphya in the Alps of the 

 Canton de Yaud." By E. Tawney, Esq., F.G.S., with a Note by T. 

 Davidson, Esq., F/R.S., F.G.S. 



The author recorded the occurrence of Terebratula diphya in a 

 block of Oxfordian limestone derived from the ridge of the Vanil 

 Noir, near Paray Charbon. No Neocomian beds occur within a dis- 

 tance of several miles. The block had merely fallen, and had not 

 been transported. The author indicated that this result is in op- 

 position to the views of M. Hebert, who maintains the identity of 

 T. diphya and T. diphyoides, and refers all the beds containing these 

 fossils to the Neocomian series. 



Mr. Davidson, in his note, indicated the distinctive characters of 

 T. viator, Pict. (=diphya) and T. diphyoides, and confirmed the 

 author's opinion as to its Jurassic age. 



5. " On a new Labyrinthodont from Bradford." By T. H. Hux- 

 ley, LL.D., F.R.S., President, with a Note on its locality and strati- 

 graphical position, by Louis C. Miall, Esq. 



The Labyrinthodont nature of this fossil was said to be proved by 

 the characters of the vertebrae, ribs, and ventral armour. It exhibits 

 portions of both jaws, which bear close-set teeth of nearly equal size, 

 nearly circular in section, and slightly recurved at the apex, which 

 is obtusely pointed. The surface of the upper jaw shows a pitted 

 sculpture. The ventral armour consists of oval plates, traversed ob- 

 liquely by a convex ridge, dividing them into two unequal parts. 

 They are supposed by the author to have overlapped each other so 

 as to show little more than the surfaces of the oblique ridges. The 

 author stated that this Amphibian appears to be most nearly related 

 to his genus Pholidog aster, but that it differs therefrom in the form 

 of the yertebral centra, and in the nature of the ventral armour. He 

 proposed to give it the new generic name of Pholiderpeton. 



Mr. Miall stated that the fossil described by Prof. Huxley was 

 obtained from the Black Bed or Boyd's Coal at Toftshaw, near 

 Bradford, and remarked that the Amphibians of the Coal-measures 

 appear to have been not only specifically numerous, but individually 

 abundant. He also noticed the difficulty of defining exact horizons 

 within the Coal-measures. 



6. " On the Maxilla of Megalosaurus:' Bv T. H. Huxley, LL.D., 

 F.R.S., President. 



The author stated that the specimen which he was about to de- 

 scribe, belonging to Mr. Abbay, of King's College, was the first ex- 

 ample of the upper jaw of Megalosaurus that had ever been seen. It 

 showed the left side of the jaw, measured nearly 18 inches in length, 

 and 4| inches in depth anteriorly ; the posterior part was produced 

 into a thin and probably free process. The author described the 

 general form of the nasal and orbital openings, as indicated by the 

 characters of the specimen, and stated that the anterior part of the 

 jaw exhibits no suture indicating the separation of the praemaxilla 

 from the maxilla. The teeth were stated to be few in number, but 



Phil. Mag. S. 4. Vol. 39. No. 262. May 1869. 2 C 



