Geological Society of London. 235 



the labyrinthodont structure of tooth might have been derived is a 

 genus of fishes named Dendrodns, in the Old Eed Sandstone. The 

 Liassic Ichthyosaurs also show some similarity in tooth-structure ; 

 but in them there is far greater simplicity. 



2. " On the Occun'ence of Antelope-remains in Newer Pliocene 

 Beds in Britain, with the Description of a New Species, Gazella 

 anglica" By E. Tulley Newton, Esq., F.Gr.S. 



Part of the skull and horn-core of a small cavicorn Ruminant, 

 which had been obtained by Mr. H. B. Woodward from the Norwich 

 Crag of Thorpe, was described, the chief points noticed being the 

 almost erect position of the horn-core upon the frontal bone, its 

 oval section and enlargement just above the pedicle, the presence of 

 a deep pit on the outer side of the pedicle, and a well-marked frontal 

 fossa, from which a large foramen passed directly into the orbit. The 

 frontal suture being well preserved, the precise direction of the horn- 

 cores could be ascertained. 



The presence of a frontal fossa with a foramen passing directl}' into 

 the orbit, was held to indicate an affinity with the Antelopes ; and 

 after comparison with the available recent specimens in the British 

 Museum and Eoyal College of Surgeons, it was regarded as most 

 near to the Gazelles, — Gazella dorcns, G. suhgutturosa, G. •picticauda, 

 and G. Bennettii, being most like the fossil, and agreeing with it in 

 having the skulls more or less compressed in the frontal region, 

 nearly upright horns, and a well-marked frontal fossa and foramen, 

 but differing in the form of the fossa and in the position of the pit 

 on the pedicle. On the whole G. Bennettii was regarded as nearest 

 to the fossil. 



The perfect condition of the frontal bone allowed a east of the 

 interior to be taken, which reproduced the form of the frontal lobe 

 of the brain, and it became possible therefore to compare this part 

 of the fossil with the brains of recent forms, which was then done, 

 special reference being made to the casts taken from Gazella picti- 

 cauda and G. Bennettii. In the form of the convolutions of the 

 frontal lobe, G. Bennettii was again found to be the most like the 

 fossil. 



Among the known fossil forms only afev/ were thought sufficiently 

 near to render a comparison with them necessary ; the following, how- 

 ever, were mentioned, and attention called to the points in which 

 they differed from the Norwich specimen, namely Antilope deperdlta, 

 A. brevicornis, A. porrecticornis, Tragoceros Valenciennesi, and Palceorijx 

 parvidens. Seeing that all the important characters of this fossil are 

 found among the recent Gazelles, it is referred to that genus ; but as 

 it differs in certain points from each of them, it is necessary to give 

 it a new specific name ; the author therefore called it Gazella anglica. 



Foi'tunately this interesting discover}' is corroborated by two other 

 similar examples of horn-cores with fi-ontals from the same locality 

 and horizon. One of them is in the British Museum, and the other 

 in the possession of Dr. Arthur King, of Norwich. 



A short appendix, by Mr. H. B. Woodward, on the horizon from 

 which these fossil Gazelles were obtained, was also read. 



