LASIOPVGA 351 



Lasiopyga denti ( Thomas ) . 



Ccrcopithccus dcnti Thos., Proc. Zool. Soc. Lond., 1907, p. 2, 

 pi. I ; Pocock, Proc. Zool. Soc. Lond., II, 1907, p. 711. 



Type locality. Ituri forest between Mawambi and Avakubi, Upper 

 Congo, (R. E. Dent). Type in British Museum. 



Color. Similar to L. mon.\, but darker above ; brow band white 

 annulated with black ; top and sides of head in front of ears, shoulders 

 and hind neck speckled greenish yellow and black; cheeks pale buff 

 yeflow ; entire upper parts and flanks speckled burnt sienna and black ; 

 outer side of legs similar but lighter; outer side of arms black, 

 speckled with yellowish to elbows ; hands and feet black ; sides of 

 neck grayish white speckled with yellow and black; tufts of black 

 hairs at corner of eyes; entire under parts, and inner side of limbs 

 yellowish white; no white patch on side of callosities; tail, at base 

 black speckled with burnt sienna, then greenish gray grading into black 

 on apical portion, beneath yellowish gray to apical portion which is 

 black above and below ; ears with white tufts. Ex type British 

 Museum. 



Measurements. Total length, 1,351 ; tail, 850; foot, 155; ear, 40, 

 (Collector). Skull: total length, 105.2; occipito-nasal length, 87.5; 

 intertemporal width, 42.9 ; Hensel, 72.8 ; zygomatic width, 70.5 ; width 

 of braincase, 55 ; median length of nasals, 16.9 ; palatal length, 34.4 ; 

 length of upper molar series, 22.1; length of upper canines, 21.5; 

 length of mandible, 68.5; length of lower molar series, 38.1. Ex type 

 British Museum. 



While resembling L. mona in general pattern of coloring, the 

 present species is much darker ; the space between shoulders is not like 

 the back, but more like the head though much darker, and the tail 

 between the base and tip is much lighter and grayer. 



Lasiopyga woLFi (Meyer). 



Cercopithecus woW Meyer, Notes Leyd. Mus., XIII, 1891, p. 63; 

 Id. Proc. Zool. Soc. Lond., 1894, p. 83, pi. VII ; Sclat., Proc. 

 Zool. Soc. Lond., 1893, p. 258; Matschie, Sitzungsb. Gesell. 

 Naturf. Freunde, Berlin, 1893, p. 216; Forbes, Handb. Pri- 

 mates, II, 1894, p. 79 ; Pocock, Proc. Zool. Soc. Lond., II, 

 1907, p. 711. 



WOLF'S GUENON. 



Type locality. Unknown. 



Geogr. Distr. French Congo, Brazzaville, (Hamlyn) ; Batempas, 

 Sunkuru, Congo, West Africa. 



