EXTERNAL CHARACTERS. 



601 



liabrador, is desoribed as duller in color, more grayish, and 

 Tvitli coal-black markings.* 



Kntorga's variety octonoiuta is described as blackish, darkest 

 along the back, with whitish spots mostly oo-shai)ed; lower sur- 



face lighter than the upper; the pelage comjiosed of rather 

 soft, fine hair. The same author's variety, undulata, is de- 

 scribed as blackish-brown, lighter below and darkest along the 



* Schreber's Siiugt., Th. vii, p. 31. 



