LASIOPYGA 3SS 



Cercopithecus erxlebeni var. nigripes Gray, Cat. Monkeys, Lemurs 

 and Fruit-eating Bats, Brit. Mus., 1870, p. 23. 



Cercopithecus pogonias Schleg., Mus. Pays-Bas, Simiae, 1876, p. 

 82, (Part.). 



Cercopithecus grayi nigripes Pocock, Proc. Zool. Soc. Lond., II, 

 1907, p. 713. 



BLACK-FOOTED GUENON. 



Type locality. Gaboon, West Africa. 



Color. Yellowish white band on forehead between eyes extending 

 backward on sides of crown nearly to occiput; sides of head between 

 eyes and ears, and middle of crown jet black ; a few yellow speckles on 

 crown; occiput, hind neck, and between shoulders speckled black and 

 yellow ; middle of back tawny ochraceous and black speckled, rest of 

 back to tail jet black; flanks gray, speckled on apical portion of hairs 

 with black and white ; outer side of arms and hands black speckled 

 near shoulder with white; legs gray annulated towards tip with black 

 and white ; feet black ; cheeks and whiskers buff yellow ; entire under 

 parts and inner side of limbs orange buff ; tail above black, beneath 

 ochraceous rufous for two thirds the length where it grades into black ; 

 above black for the entire length ; ear tufts ochraceous buff. 



Measurements. Total length, 1,160; tail, 710; foot, 125. Skull: 

 total length, 85 ; occipito-nasal length, 74 ; intertemporal width, 42.5 ; 

 Hensel, 57.6; zygomatic width, 60; width of braincase, 53.6; median 

 length of nasals, 16 ; palatal length, 30.3 ; length of upper molar series, 

 23.5 ; length of mandible, 54.2 ; length of lower molar series, 27.6. 



Similar to L. pogonias, but dorsal stripe broader and not so dark. 



Lasiopyga GRAYI (Fraser). 



Cercopithecus grayi Fras., Cat. Knowsl. Coll., 1850, p. 8 

 Gray, Proc. Zool. Soc. Lond., 1868, p. 182; Id. Cat 

 Monkeys, Lemurs and Fruit-eating Bats, Brit. Mus., 1870, p 

 22, (Part.) ; Sclat., Proc. Zool. Soc. Lond., 1893, p. 256; 1896 

 p. 484; Matschie, Sitzungsb. Gesell. Naturf. Freunde, Berlin 

 1893, p. 214; Forbes, Handb. Primates, II, 1894, p. 77, pi 

 XXIII ; Pocock, Proc. Zool. Soc. Lond., II, 1907, p. 712. 



Cercopithecus erxlebeni Dahlb. et Pucher., Rev. Mag. Zool., 1856, 

 p. 96; 1857, p. 196; Dahlb., Stud. Zool. Fam. Reg. Anim. 

 Natur., fasc. I, 1856, pp. 102, 106; Reichenb., Vollstand. 

 Naturg. Affen, 1862, p. 110; Gray, Proc. Zool. Soc. Lond., 

 1868, p. 182; Id. Cat. Monkeys, Lemurs and Fruit-eating 

 Bats, Brit. Mus., 1870, p. 23 ; Sclat., Proc. Zool. Soc. Lond., 



