408 Dr. C. W. Andrews — Extinct Egyptian Vertebrates. 



rectangular crowns are wider transversely than from before backward. 

 Their surface is greatly worn, so that no trace of cusps or ridges 

 remains. The greatly worn m. 1 is similar, m. 2 and m. 3 have 

 quadrate crowns, each composed of a pair of transverse ridges, 

 which are much more worn on the inner than on the outer sides. 



Fig. 4. — Left upper cheek-teeth, of Bradytherium grave, Andrews. 

 One -sixth natural size. 



Besides the mandible and upper teeth here described the collection 

 includes the scapula, humerus, ulna, and some other portions of the 

 skeleton. 



The humerus is enormously stout, and its distal end greatly 

 expanded. 



This remarkable animal, for which the name Bradytherium grave 

 is proposed, in many respects resembles Dinotherium, at least as 

 far as its dentition goes, but differs in several points, e.g. in the 

 presence of three premolars and in the existence of a talon on the 

 third lower molar. In some vpays, as in the presence of the 

 tuberosity on the lower border of the mandible and in the form of 

 the humerus, it shows some similarity to certain of the Dinocerata. 

 Its actual position remains for the present doubtful. Portions of 

 three individuals were found, so that there is every reason to hope 

 that further search may yield more material for settling this question. 



The dimensions of the specimens described and figured are (in 

 millimetres) : — 



Length. 

 57 

 39 

 50 

 59 

 75 

 83 

 51 

 43 

 57 

 57 

 86 

 105 



Width. 

 57 

 65 

 80 

 84 

 86 

 87 



35 (approx.) 

 47 

 55 



64 

 70 



Total length of upper molar and premolar series 



Total length of lower molar and premolar series (approx.) 



Total length of mandible as figured 



Depth of ramus beneath pm. 4, about 



mm. 

 365 

 385 

 660 

 256 



