ERYTHROCEBUS 13 



Eeythhocebus KEKSTiNGi (Matschie). 



Cercocebus kerstingi Matsch., Sitzungsb. Gesell. Naturf. Freunde, 

 1905, p. 274 ; Pocock, Proc. Zool. Soc. Lond., II, 1907, p. 745. 



Type locality. Sokode, Togoland, West Africa. Type in Berlin 

 Museum. 



Genl. Char. Like E. patas, but ochraceous rufous above instead 

 of fox red. 



Color. Top of head dark ochraceous rufous, paler on sides, hairs 

 tipped with black; back of neck, upper part and inner side of thighs 

 ochraceous rufous, hairs tipped with buff, giving a yellowish tinge over 

 all the body; narrow line on forehead extending backward to ears 

 black ; nose black ; lips white ; cheeks grayish white, hairs tipped with 

 black ; sides of neck yellowish, shoulders gray, hairs tipped with black ; 

 forearms and legs below knees, throat, chest, under parts of body and 

 inner side of limbs grayish white; tail above dark fox red, beneath 

 white. Ex type Berlin Museum. 



Measurements. Total length, 1,620; tail, 760. Skull: total length, 

 150; occipito-nasal length, 121; Hensel, 104; intertemporal width, 51; 

 zygomatic width, 93 ; median length of nasals, 22 ; length of upper 

 molar series, 31.5; length of mandible, 106; length of lower molar 

 series, 42. Ex type Berlin Museum. 



This form is precisely like E. patas in its markings and distribu- 

 tion of colors, but is not so red on upper parts, the shade being an 

 ochraceous rufous darkest on center of head. A specimen in the 

 British Museum from Lagos, seems referable to this form. 



Eeythrocebus zechi Matschie. 



Erythrocebus zechi Matschie, Sitzungsb. Ges. Naturf. Freunde, 

 1905, p. 276. 



Cercopithecus zechi Pocock, Proc. Zool. Soc. Lond., II, 1907, p. 

 745. 



Type locality. ? Togoland, West Africa. Type in Berlin 



Museum. 



Genl. Char. Exactly like E. kerstingi, a little paler on sides of 

 body, and with a black chin. 



The type is a young animal and has not acquired the fully adult 

 coloring, the forearms and legs being still yellow, not grayish white 

 like the adult. 



The differences relied upon for separating this form from E. 

 KERSTINGI are very slight, only the upper parts a little paler red and 



