366 LIEUT. R. BROOM ON 



Brachyopidse. It is interesting that one should be known only 

 from India, one from Australia, and the third from South 

 Africa. 



Lydekkerina huxleyi (Lydekker), gen. nov. (Text-fig. 3.) 



In 1890 Lydekker described a small Stegocephalian from the 

 Orange Free State under the name Botliriceps huxleyi, believing 

 the form to be allied to Huxley's Bothriceps australis. No later 

 worker, so far as I am aware, has doubted the correctness of 

 Lydekker's placing it in Huxley's genus. But as I hope to show 

 that the South- African form differs very markedly from Bothri- 

 ceps, and possibly even belongs to a different family, I propose 

 to establish a new genus for it, which I have mvich pleasure in 

 calling Lydekkerina, after Mr. R. Lydekker, who has so recently 

 passed away, and whose work on Sovith African fossil reptiles 

 was extremely good. 



The only known specimens of Lydekkerina huxleyi ai'e four 

 skulls, with some portions of the rest of the skeleton, in the 

 British Museum, and a number of fairly good specimens in the 

 Bloemfontein Musevim ; and all were obtained, I believe, from a 

 locality near Edenburg, O.F.S. • 



The skull is about a half longer than broad. The orbits are 

 moderately round and placed near the middle of the skull. The 

 nostrils are large ; and there is a very distinct otic notch 

 bounded internally by a well-developed tabular. 



The premaxillaries are fairly well developed and the maxillaries 

 are long but very slender. The septo-maxillary, if developed as 

 is probable, is entirely inside the nostril. 



The nostril is large, and is sepaiated from the maxilla by the 

 lacrimal. 



The lacrimal, is very well developed, extending backwards from 

 the nostril to near the oi'bit, and having on its inner side the 

 nasal and prefrontal, and on its outer the maxilla and jugal. 



The prefrontal is slightly larger than the lacrimal, and forms 

 most of the anterior margin of the orbit. 



The frontal is long and narrow. The prefrontal is also narrow, 

 and of about the same length as the frontal. The postorbital is 

 broad and slightly smaller than the prefrontal. 



Tlie jugal is long, and in the orbital region fairly wide. It 

 lies above the maxilla, and along its upper border are the 

 lacrimal, the prefrontal, the orbit, the postorbital, and the 

 squamosal. Nearly as much of the jugal lies in front of the orbit 

 as behind it. 



The parietal is about as long as the frontal, but slightly 

 broader. There is a small pineal foramen situated between the 

 bones, and nearer to the anterior than to the posterior borders. 



The supra squamosal (supratemporal) lies on the outer side of 

 the parietal. It is about the same size as the postorbital. 



