EIDOLON HELVOI. 1 1 



Jiiilir el Abi;id, I'.alir el Asrak, Kordol'aii) ; ul., op. cit. Ix. Abtli. i. 



H. 9, p. 401 (1870). 

 Leiponyx biittikoferi, Jentink, Notes Leyden Mus. iii. p. 59 (Jnn. 



1881": Liberia); id., op. cit. x. p. 53 (1887: Liberia); id., 



Cat. Syst. Mamvi. p. 152 (1888: Liberia); BiHtikofer, Hei.se- 



bilder am Liberia, ii. pp. 362, 471 (1890) ; Trouessart, Cat. 



Mamm. i. p. 89 (1897) ; Matschie, Meyachiroptcra, p. 85 (1899) ; 



Troziessart, Cat. Mamm., Stippl. p. 04 (1904). 

 Pterocyon biittikoferi, Miller, Fum. Sj Gen. Bats, p. 56 (1907). 



The characters of this species, as compared with E. dupreanwa 

 and sabceum, are pointed out on pp. 8 & 15. 



Fur. — Fur on head, back, breast, and belly short, closely adpressed, 

 on neck longer, more woolly. Face in front of and below eyes almost 

 naked. Ears naked posteriorly except at base. Above, humerus, 

 proximal two thii-ds or three fourths of forearm, femur, and tibia 

 clothed with short, adpressed hair ; interfemoral hairy in the 

 middle and for a broad space along the tibiae, extreme lateral 

 margin naked ; u})perside of feet short-haired. Below, humerus, 

 and proximal half of forearm, membrane along inner and outer 

 side of forearm, lateral membrane next to body, femur, proximal 

 half of tibia, interfemoral in the middle and along sides of tibia3, 

 short-haired. 



Colour. — General aspect : grizzled straw-yellow and hair-brown 

 above, with a more or less pronounced tawny half-collar in adults. 

 Sexual difference : females lighter than males, half-collar paler. 



Adult male — Base of hairs of tipperside almost buff, broad ti])s 

 hair-brown ; the colour of the hair-tips predominant, giving the 

 Avliole of the upperside a darker aspect than in females, darkest on 

 the head, pO'^terior part of back, and upperside of tibia?. Halt- 

 collar tawny, brighter than in females. Breast and belly yellowish- 

 buff on sides, washed with hair-brown in the middle. 



Adult female — Base of hairs of upperside buff, tips hair-brown ; 

 the colour of the hair-bases predominant, giving the whole of the 

 upperside a lighter, more buffy aspect, grizzled with hair-brown 

 on the crown, middle and posterior part of hack, and ujtperside of 

 tibia\ Half-collar less pronounced, rarely brighter than ochraceous 

 buff. Breast and belly buff on sides, grizzled with hair-brown in 

 the middle. 



^'oung and immature specimens are rather similar in colour to 

 adult males, but generally of a somewhat darker shade, and with 

 no tawny colour on the neck. 



Se.vual difftrence in size. — Inconsiderable ; in 15 fully adult 

 males the length of the forearm ranges from 117"5 to 129 mm. 

 (average 122-2), in 14 fully adult females from 119 to 131 

 (average 124-7). 



Measurements. On p. 16. 



Ramie. Africa : from Somaliland, Sennaar, and Penegarabia in 

 the north, to Nyasaland, Mashonaland, and Namaqualand in the 

 sou til. 



Tiipc probalily not in existence. 



