Os Penis of some Genera of Mustelidse. 309 



a. Baculum of Orison furax from the left Bide, nat. size. 



b. Extremity of the same, X 2. 

 Extremity of the .same from above, x 2. 



Extremity of baculum of Martes foina from the left side, x 2. 

 Baculuin of Cftarroniajtanyula from the left side, nat. size. 

 Extremity of the same, X 2. 

 The same from the front, X 2. 

 The same from the right side, X 2. 

 Baculum of Mellivora from the left side, nat. size. 



k. Extremity of the same from below, nat. .-ize. 



1. The same from above, nat. size. 

 m. The same from the front. 



In a, d, e, and i the dotted line shows the course of the urethra along 

 the ventral side of the baculum. 



c. 

 d. 

 e. 

 f. 



g- 

 h. 



i. 



