198 



On Abnormal Dentition in a Dhole. 



examined (see the annexed figure). H<mce it will be under- 

 stood that the supernumerary lower premolar I have described, 

 although unlike pm % of the skull to which it belongs in having 

 its roots separated, resembles in this particular, at all events, 

 the lower pm 2 of two skulls belonging to the same species and 

 of one belonging to an allied species of the genus. The tooth 



B 



Abnormal Dentition in a Dhole (Cuon dukhunemis). 



A. Anterior portion of lower jaw seen from above. pm\ pm 2 , pm*, first, 



second, and third premolars of right and left sides ; x, supernu- 

 merary premolar of right side. 



B. Second and third and supernumerary premolars of right side extracted. 



may therefore be a slightly developed and slightly mo lifie 1 

 repetition ot pm 2 , retaining in the matter of its separated roots 

 the condition normal for the genus, which the genuine second 

 lower premolars of this particular skull have lost. At all 

 events, it does not appear to me to be justifiable to assume 

 that the tooth is not an additional pm 2 on the grounds of the 

 distinctness of its roots, although this conclusion would have 

 commended itself had the one skull alone been available for 

 examination. 



