UPPER CRETACEOUS INSECTIVORA 



139 



vestigial canine, and this preceded by a large procumbent tooth, a large canine or 

 incisor. 



Type. — B. tetiuis Marsh. 



Distribution. — Lance, Wyoming. 



This genus appears to be similar to, but not identical with Telacodon. 1 1 is not 

 didelphid, for if there were only three premolars the canine 

 was vestigial and one of the incisors was hypertrophied. 

 This would suggest the caenolestoids, but the specimen is 

 so doubtful that such speculation has no value whatever. It 

 is more probable, and less sensational, that it is a small in- 

 sectivore. 



Marsh considered the large procumbent tooth as the 

 canine and the small alveolus as for Pi, and this seems the 

 more probable of the two possible interpretations. 



V-ZN14 21.39 



Fig. 55. Batodon tenuis. Part 

 of left lower jaw, external 

 view, type. Five times natu- 

 ral size. 



Batodon tenuis Marsh 1892 

 1892. B. tenuis. Marsh, Amer. Jour. Set. (3) XLIII, 258. 



Type. — U.S.N.M. No. 2139. Anterior part of lower jaw with canine (or enlarged 

 incisor) and three premolars. Fig'd, Marsh 1892A, PI. XI, fig. 5. 



Horizon and Locality. — Lance formation, Niobrara County, Wyoming. 



Diagnosis. — Sole species of the genus. 



