68 ANOMODONTIA. 



Genus GALESAURUS, Owen \ 



Syn. Nythosawus, Owen 2 . 



The type genus. Incisive teeth |, cheek-teeth ~ ; hinder cheek- 

 teeth with laterally compressed tricuspidate crowns; incisives, if 

 serrated, very indistinctly so. Skull depressed, with a comparatively 

 short, shallow, and subconical muzzle, and the temporal fossse much 

 larger than the orbits, which are directed frontally. Inferior sur- 

 face of mandibular symphysis sloping obliquely upwards. 



Galesaurus planiceps, Owen 3 . 

 Syn. Nythosaurus la?'vatus, Owen 4 . 



The type and only described species. Of comparatively small 

 size, the length of the skull being some 0,090 (3*55 inches). 

 Hah. South Africa. 



36220. The imperfect skull ; from the Beaufort beds 5 of the Karoo 

 (Fig.) system of the Khenosterberg branch of the Sneewberg 

 range. The type ; figured by Owen in the ' Quart. 

 Journ. Geol. Soc' vol. xvi. pi. ii., and also in his * Cata- 

 logue of the Fossil Iieptilia of S. Africa,' pi. xviii. figs. 6- 

 11. The cranium has been flattened by a vertical crush, 

 thus causing the plane of the occiput to be more oblique 

 than is naturally the case. The teeth are very imperfectly 

 preserved, but in the left side of the mandible there are 

 four teeth in advance of the tusk, and apparently some 12 

 cheek-teeth behind it. The narial aperture is very 

 imperfect. Presented by Sir George Grey, K.C.B., 1858. 



R. 511. The nearly entire skull ; from the Karoo system of the 

 (Fig.) Orange Tree State. Described and figured by Owen in 

 the ' Quart. Journ. Geol. Soc' vol. xiiii. p. 1, pi. i., and 

 by Seeley in the ' Phil. Trans.' for 1889, pi. ix. figs. 3, 4. 

 In Owen's figure of the frontal aspect the occiput was 

 restored from the preceding specimen ; this is, however, 

 incorrect, the occiput of the present specimen being really 

 in its true subvertical plane. The tooth represented in 

 the figure as the crown of the upper tusk is really the 



1 Quart. Journ. Geol. Soc. vol. xvi. p. 58 (1860). 



2 Cat. Foss. Eept. S. Africa, p. 24 (1876). 



3 Quart. Journ. Geol. Soc. vol. xvi. p. 58 (1860). 

 * Cat. Fops. Kept. S. Africa, p. 24 (1876). 



5 See Quart. Journ. Geol. Soc. vol. xxiii. p. 143. 



