264 Dr. D. G. Elliot on apparently new 



dorsal line, the liairs speckled ocliraceous and black ; outer 

 side of arms and le}]fs grey, speckled on arms above elbows 

 and on thighs with eream-eolour and black, and on fore- 

 arms and legs bilow knees with black and "white ; wrists 

 and hands black, speckled with white ; feet grey and black 

 speckled, toes brownish black with some white hairs inter- 

 mingled ; whiskers long, directed backwards hiding the ears, 

 cream-colonr anunlated with black ; face, lips, and chin 

 covered with short brownish-black hairs; sides of neck, 

 throat, inner side of limbs, and entire under parts white ; tail 

 above for three-fourths the length speckled cream-colour and 

 black, rest jet-black, miderside with a rufous patch at root, 

 rest whitish grey, becoming buff on aj^ical part, the extreme 

 tip only being black. 



Measurements. Total length 1190 mm.; tail 730; foot 

 125. Skull: total length 1032; occipito-nasal length 87 ; 

 intertemporal width 42 9; hensel 72; zygomatic width; 

 72 9 ; width of brain-case 57'5 ; length of nasals 16'1 ; 

 palatal length 38*3; length of upper molar series 25; 

 length of upper canines l5"o ; length of mandibles 74'7 ; 

 length of lower molar series 30"8. 



Tyjje in British Museum, no. 7. 1. 11. 1. 



There are three specimens of this species in the British 

 Museum — one from the east bank of the Loangwa River, 

 collected by Mr. S. A. Neave at an altitude of 2000 feet, and 

 one from Limondi on the boundary between the English 

 and Portuguese territories ; and one from north Basilimdo 

 Chiyaka District, Angola, West Africa, collected by Dr. F. 

 C. Wellman. They^ closely resemble each other, and give 

 the impression of a yellow monkey speckled on head, middle 

 of back, and rump with black, but the annulations rather 

 indistinct on flanks. By having the red patch beneath the 

 tail at the root, the species evinces a relationship to 

 C. pygerythrus, but it bears no resemblance whatever to that 

 animal in its general coloration, and, in fact, is far too much 

 of a yellowish hue to be compared with any other sj)eeies of 

 the genus. It doubtless is a dweller in the forests on the 

 watershed from the Loangwa westward to Angola. It is a 

 large thick-set animal, with rather short limbs and long 

 tail. 



Genus Erythrocebus. 

 Erythrocebus formosus, sp: u. 



Type locality. Uganda, particular locality not given, East 

 Africa. 



