4. ZOOLOGICAL RESEARCHES 



herstam mend , ist an Bord des Postdampfers »Ambriz", 

 wahrend der Rückkehr von meiner ersten Reise, gestorben. 



The young male from Grand Bassa is colored like our 

 young specimens from the Gold-Coast and the Congo , viz : 

 black , with exception of the hairs on lips , chin and anal 

 region , which are pure white. The young female from River 

 Cess , which was living during a short time in Büttikofer's 

 possession , was colored like the young male. 



The adult male from Weflah measures from margin of 

 upperlip to anus 960 mM., its foot 210 mM. It is colored 

 like the specimen from the Cameroon Mountains mentioned 

 by Gray (P. Z. S. L. 1862, p. 181) as a distinct variety 

 or species under the name of Troglodytes vellerosus : it is 

 black colored , the hairs however of the back are brown , 

 that is to say, each black hair has a large brown tip, 

 meanwhile the hairs on lips and chin, which are white in 

 young specimens , are brown like the back. As the dimen- 

 sions of this animal and its dentition demonstrates that it 

 is a very adult individual I think that the brown colored 

 back is a characteristic of its far advanced age. 



All the teeth, especially the incisors, are very much 

 worn 0Ö. 

 Greatest length of skull from margin of upper jaw 190 mM. 



Width between zygomatics 130 » 



» » orbits 104 * 



Length of bony palate 67 » 



Length of lower jaw 65 » 



2. C I oh u s species ? 



A young female, Buluma (Büttikofer and Sala). 

 Iris dark brown. 



Nach allem was ich in Erfahrung bringen konnte, halt 

 sich dieser schone Affe nie in den Küstenstrichen auf. Unser 

 kleines Exemplar, das wir lebend erhiel ten, wurde ziemlich 

 weit hinter Buluma hergebracht. Es war ein ganz char- 

 Notes from the Leyden ÜMuseum, Vol. X. 



