DICYN0D0NT1DJE. 31 



the vertical. The known specimens are of comparatively small 

 size. 



Hab. South Africa. 



47061. The imperfect cranium ; from the Beaufort beds of the 

 {FU j.) Karoo system at Styl-Krantz, Sneewberg range. The 

 type specimen ; figured by Owen in his ' Catalogue of the 

 Fossil Reptilia of S. Africa,' pi. lxiii. figs. 4. 5. The greater 

 part of the palate is well preserved, but the aperture of 

 the posterior nares is obscure. The bone marked palatine 

 (20) in Owen's figure also includes the anterior extension 

 of the pterygoid. Presented by A. G. Bain, Esq., 1853. 



R. 1646. The imperfect and laterally crushed cranium of a rather 

 larger individual ; from the Karoo system of the Cape. 

 The nearly vertical plane of the occiput and the large size 

 of the orbits are well shown. 



Presented by A. G. Bain, Esq., 1853. 



Udenodon prognathus, Owen 1 . 



Syn. Udenodon magnus, Owen' 2 . 



The largest species. Cranium with the muzzle somewhat pro- 

 duced, and the caniniform ridge of the maxilla inclining obliquely 

 forwards ; orbits of moderate size, and to a great extent lateral ; 

 interorbital bar long and wide ; parietal bar elongated ; and the 

 plane of the occiput nearly vertical. 



There appear to be no characters by which the large cranium on 

 which U. magnus was founded can be specifically distinguished from 

 the type of this species ; the length of the former cranium is 0,482 

 (19 inches). 



Hab. South Africa. 



47059. The imperfect skull of a young individual ; from the Beau- 

 (Fig.) fort beds of the Karoo system at Mildenhalls, near Fort 

 Beaufort. The type : described by Owen in the ' Quart. 

 Journ. Geol. Soc' vol. xvi. p. 56, and figured in his c Cata- 

 logue of the Fossil Reptilia of S. Africa,' pi. lxi. The 

 mandible is nearly entire ; and the cranium is fairly well 

 preserved, but has lost the occipito-squamosal region and 

 the postorbital bar. The horizon of this specimen is 

 stated J to be the " Fort Beaufort Grit," at the base of the 

 Beaufort beds. Presented by A. G. Bain, Esq., 1853. 



1 Quart. Journ. Geol. Soc. vol. xvi. p. 55 (1860). 



2 Cat. Foss. Kept. S. Africa, p. 56 (1870). 



8 Quart. Journ. Geol. Soc. vol. xxiii. p. 143. 



