430 THE HON. WALTER ROTHSCHILD ON [DeC. 13, 



Reafion i'ouikI eyes dark Sitnia jyygmcens chimjianse. 



Region round eyes pale, like rest of face 4 



f Bejii'd short, sparse, almost absent ; hair short, thin, 

 and black ; face pale, blotched with dark tan. 



Simia 2)yg'>nceus rarijnlosus. 

 Face pale flesh-colour, beard thick and long ; hair 

 long, thin, and black ; head round, ears set on low. 



4 <( Simia 2iyginaiti,s. 

 Hair, even when young, mostly reddish ; hair on chin 



whitish ; hair of head spreading from central whorl, 



beard entire and long Simia pygmceus ftiscus 



Hail- on head sparse, ears large, chin-hairs bi'ownish. 



Simia 2iygmce'as lei(,co2)rymn'as. 



This Key is as close as I have been able to work, but when 

 some of the remaining subspecies are described it must be revised. 



Synopsis. 



1. Si7nia vellerosus (Gra.y). Camaroons. 



la. Simia vellerosus fuliginosus (Schaufuss). Congo region. 



2. Simia satyrus (Linn.), Camaroons and Gaboon. 



2«. Simia satyrios marungensis (Noack). Central Congo. (Text- 

 fig. 112, p. 4.31.) 

 26. Simia satynts schtmivfivrtlii (Giglioli). Soudan and Uganda. 



3. Simia koolookamba (Du Chaillu). Camaroons and Gaboon. 



4. Simia auh^yi (Gratiolet ct Alix). Camaroons and Gaboon. 



5. Simia pygmcBus ^clvcehev. Congo. (Text-fig. 113, p. 432.) 



5 a. Simia pygmceus fascas (Maj^er). Gold Coast? 



56. Simla pygmceus leiicoprymnus (Lesson). Sierra Leone and 

 S. Liberia. 



5 c. Simia pygmcmis cMmpanse Matschie. Gambia. (Text- 

 fig. 114, p. 433.) 



5fZ. Simich pygmcBxis raripilosus Rothschild. French Congo. 



In Professor Matschie's previously cited paper, first of all, under 

 the head of Simia scchp-us Linn, he has confused four species, 

 viz. S. scttyrus, S. Jcooloohamha,, S. cmhryi., and S. velle7'osus, in fact 

 all the black-faced species. As now ascertained, Linnseus's species 

 must stand as Simia satyrus Linn. Syst. Nat. i. 25 (1758). 



Synonyms: Simia troglodytes Gm., 1788; Troglodytes niger 

 Geoftr., '1812; Troglodytes tschego Duvernoy, 1855; and Troglo- 

 dytes ccdvus Du Chaillu, 1861. 



Troglodytes cmbryi Gratiolet ik Alix, 1866, must stand as a good 

 species as Simia aubryi (Grat. & Alix). 



Troglodytes koolookamba Du Chaillu must stand as a distinct 

 species as Simia koolookamba (Du Chaillu). (Text-fig. 1 1 5, p. 434.) 



Si7nia ccdvus Matschie {nee Du Chaillu) is the same as Simia 

 vellerosus (Gray). 



Simia vellerosus Matschie {nee Gray) is a mixture of *S'. velJe- 

 rosus and S. aubryi. 



