186 Oeological Society. 



and described as new the following species — Sigaretus e.vcentriais, 

 Cancellaria epistomifera, Marecc cornurectus, Turbinelltts adijtcatus, 

 Cyprcea Gabbiana, and Phorus delectus. 



May 24, 1 876.— Prof. P. Martin Duncan, M.B., F.R.S., President, 

 in the Chair. 



" Evidences of Theriodonts in Pennian Deposits elsewhere than 

 in South Africa." By Prof. R. Owen, C.B., F.B.S., F.G.S. 



In this paper the author noticed some described Reptilia which 

 he believes to belong to his order Theriodoutia. In 1838 Kutorga 

 described as probably mammalian the distal end of a humerus 

 showing a perforation or canal above the inner condyle. The spe- 

 cimen was from the Permian of "the Western Oural ; and Kutorga 

 gave it the name of Brithopus lyrlscus. Under the name of Orthopus 

 prhncevus he described the proximal part of the humerus of the 

 same species, perhaps of the same bone. There is thus evidence of 

 an extinct reptile in the Permian deposits of the Oural with a hu- 

 merus showing the characters of the Theriodont Reptiles of the 

 Karoo series of South Africa. The British Museum possesses a cast 

 of the first.-mentioned fragment, labelled by Krantz " Eurosaunis 

 uralensis, H. von Meyer, Brithopiis priscus, Kutorga." The genua 

 Eurosaunis was founded in 1842, by Fischer von Waldheim, upon 

 some fragments of bone, including a humerus with a broad proximal 

 end as in Kutorga's OrtJiopnis ; and Fischer also noticed a humerus 

 showing characters like those of Kutorga's Brithopus, from the same 

 locality as the portion of a jaw described under the name of Rho- 

 palodon Wangenheimn, Fischer, which contained nine molar teeth, 

 with thick, pointed, subcompressed crowns, with trenchant and 

 serrate borders. In 1858 H. von Meyer described a skull from the 

 Permian of the Oural, under the name of Mecosaurus urcfliensis, as 

 a Labyrinthodont ; and Eichwald referred this genus, with Kutorga's 

 Brithopus and Orthopus, to Fischer's Eurosaurus. The author re- 

 garded Mecosaurus as truly Labyrinthodont ; whilst the Permian 

 forms constituting Kutorga's genus were referred to the Theriodont 

 order. From the same locality as the above, Kutorga describes /Syodan 

 biarmicum as probably a Pachyderm. Its teeth resemble those of 

 Oynodraco. Eichwald's Denterosaurus biarmicus is founded upon 

 the fore part of both upper and lower jaws of a Reptile, containing 

 teeth with denticulate or crenulate trenchant borders, the canines 

 being large, especially in the iipper jaw. Denterosaurus closely 

 resembles Cynodraeo, and still more the Lycosaurus of the Karoo 

 beds of the Sneewberg range. All the above are from the Permian 

 beds of the Oural ; and the author regards them as furnishing sug- 

 gestive evidence of the Palaeozoic age of the Karoo series, in which 

 the Theriodont Reptiles are best represented. 



The author further noticed a Theriodont allied to Lycosaurus, from 

 a red sandstone, probably of Permian age, in Prince-Edward 

 Tsland, The remains include'the left maxillary, premaxillary, and 



