66 
THE MAMMALS OE EGYPT. 
Thomas ^ as Papio thoth siibsp. iheanus, and the second was named by Matschie - 
Gynocephalus langheldi ; but as Thomas’s description was the first to appear in print, 
it has priority. However, before considering the characters of these two baboons, 
the types of which have been examined by me, it is desirable first to consider in 
detail the external characters of the baboon named by Ogilby Gynocephalus thoth, 
because Thomas considered his baboon to be only a local form of that species. 
Papio thoth (Ogilby), British Museum. Type. Beg. No. 55.12.24.18, male. Original of 
Mr. Ogilby’s description, Proc. Zool. Soc. 1843, p. 11. Skull, 1100 a, Ost. Cat. B.M. 
The body of this baboon has not the thick-set form of P. anubis, but, on the 
other hand, is somewhat slender, and the limbs are decidedly longer than those of 
that animal, and so it attains a greater height. The head is not flattened behind the 
superciliary ridge as in P. anubis ; the muzzle is moderately long. The upper 
border of the ear is somewhat angular. Nothing can be learned regarding the 
colour of the face beyond that it may have been of a livid flesh-colour; its sides, 
before the eyes, are covered somewhat densely with short white hairs, which is a 
characteristic feature of P. cynocephalus ; strong short white bristly hairs clothe the 
margin of the upper lip, and are directed downwards and backwards, while others on 
the lower lip are directed forwards and upwards. A few scattered, long, black bristly 
hairs occur on the sides of the muzzle and on the chin. The bare area around the 
callosities is large. The tail is about four-fifths the length of the head and body ; the 
hair on it is generally short, with the exception of the apical hairs, which, however, do 
not form a tuft. Long grey hairs project over the nails of the hind feet. The hair on 
the vertex is longer than that on the rest of the head. The hairs on the shoulders 
are longer than on the rest of the body and form a mantle, the longest being about 
290 mm., whereas those on the lumbar region are not more than 80 mm. long. Long 
straggling hairs, longer than the others, occur on the mantle, and hairs of the same 
character, but shorter, are present on the side of the trunk as far back as the last rib, 
on the humeral region, and on the back of the thighs. 
General colour olive brownish yellow, but very slightly more yellowish on the 
hinder part of the body and on the outside of the thighs. The hairs on the sides 
of the head behind the nearly bare face and on the throat are pale yellowish white or 
yellowish grey. The inner sides of the limbs are yellowish without distinct annulations, 
but on the under surface of the trunk, and especially over the chest, the hairs are 
annulated in much the same way as on the back. The hairs generally terminate in a 
pronounced blackish or dark-brown tip, below which there are a varying number 
of yellow and dark rings. In the shorter hairs, measuring about 80 mm. long, as 
1 Ann. & Mng. Nat. Hist. (6) xi. Jan. 1893, p. 47. 
2 SB. Ges. nat. Fr. Berlin, 1892, p. 233 (publ. March 1893). 
