326 LASIOPYGA 



c. Upper parts tawny and black L. rubella. 



d. Upper parts buff, yellow, or ochraceous and 



black. 

 a.' Chin black. 



a." Legs unspeckled. 



a."' Legs mixed gray and black L. callida. 



b."' Legs bluish gray, hairs tipped 



with white L. centralis. 



b." Legs speckled. 



a.'" Under parts grayish white L. c. tuhytei. 



b!" Under parts buff L. c. lutea. 



b.' Chin white L. c. johnstoni. 



e. Upper parts speckled buff yellow and black. 



a.' Legs gray speckled with cream color L. silacea. 



b.' Legs yellow, unspeckled L. nigriviridis. 



Lasiopyga matschee (Neumann). 



Cercopithecus matschie Neum., Sitzungsb. Ges. Naturf. Freund., 

 Berlin, 1894, p. 15; 1902, p. 51; Id. Proc. Zool. Lend., II, 

 1902, p. 143 ; Pocock, Proc. Zool. Soc. Lond., 1907, p. 730. 



MATSCHIE'S GUENON. 



Type locality. Malo, Omo River, north of Lake Rudolf. Type 

 in Berlin Museum. 



Geogr. Distr. Dark forests of the Omo and Sobat rivers. 



Genl. Char. Upper parts tawny instead of green. 



Color. Top of head, neck and entire upper parts of body tawny, 

 the hairs grayish at base then ringed with black and tawny ; narrow line 

 on forehead, sides of head, throat, entire under parts and inner side of 

 limbs white ; nose, lips and chin black ; shoulders and upper part of 

 thighs with the hairs ringed with black and ochraceous, paler than the 

 back ; hairs on forearms gray at base, then black and tips white ; legs 

 gray ; hands and feet black ; tail above black, hairs tipped with buff, 

 beneath at base white. Ex type Berlin Museum. 



Measurements. Total length, 1,260; tail, 590. Skull: occipito- 

 nasal length, 93 ; Hensel, 76 ; intertemporal width, 42 ; zygomatic width, 

 70; median length of nasals, 22; length of upper molar series, 26; 

 length of mandible, 75 ; length of lower molar series, 35. Ex type in 

 Berlin Museum. 



This is the only reddish back species in the green group of this 

 genus. It dwells in dark forests which accounts for the intensity 

 of its coloring. 



