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7. On Some New Gorgonopsians . 



1. GALESUCHUS GRACILIS, g. et sp. nov. 

 (Text-figs. 10, 11.) 



This new genus and species is founded on a specimen collected at 

 Abraham's Kraal, Prince Albert Division, that is, from the lower 

 half of the Pareiasaurus zone, where it occurred in conjunction with 

 Trochosaurus intermedius and bones of Pareiasaurus and of large 

 Dinocephalians. It is a weathered skull and lower jaw, lacking the 

 anterior part in front of the canine. 



The skull is small. As preserved its greatest length is 120 mm., 

 while the maximum width across the squamosals was probably 

 75 mm. The orbits look outwards, and the antorbital portion 

 seems not to have been quite so elongated as in the Gorgonopsians 

 from the Endotliiodon and Cisteceplialus zones. The antero-posterior 

 diameter of the orbit is 32 mm., and the interorbital width 30 mm., 

 being equal to the interternporal. The temporal fossa looks upwards 

 and outwards. The occiput is very sloping, inclined at an angle of 

 not much more than 30 to the top of the skull. 



The canine is fairly large and vertical. The molars are small, 

 four in number, simple, unserrated, and slightly recurved. The 

 maxilla is deep, with a posterior slender process passing below 

 the jugal to the plane of the middle of the orbit. 



Both the prefrontal and lachrymal are large, while the jugal forms 

 part of the anterior, and the whole of the inferior, borders of the 

 orbit. The prefrontal forms the whole of the anterior superior 

 quadrant of the border. 



The frontal is large, forming 5 mm. only of the orbital border. 

 It passes backwards, supporting the median preparietal, and 

 articulating also with the parietal and postfrontal. 



The postfrontal is large, and forms a large part of the upper 

 border of the orbit, having the same general shape as in Scylacops 

 capcnsis. 



The preparietal is 15 mm. long, and lies 4 mm. in front of the 

 pineal foramen, which is 5 mm. long and oval in shape. 



