18 EINAR LÖNNBERG, MAMMALS COLLECTED IN CENTRAL AFRICA. 



the forest they leave for another. They feed on »ibizengozengo » and »ibitoke b'mgano». 

 The latter means young shoots of bamboo. The Gorilla makes a kind of nest ( »buriri ») 

 among the bamboo and puts on top of this slender twigs of bamboo ( »ubusaza»). 



The natives are more afraid of the Chimpanzee than of the Gorilla, because the for- 

 mer is apt to attack a man without offence, the latter not. If, however, the Gorilla has 

 been attacked, it defends itself bravely and tries to tear its foe to pieces with its teeth. 

 The natives hunt the Gorillas to obtain their skin which they use for wrapping up their 

 copper thread etc, or for revenging some relative. Tims when a man from Sangana 

 had been killed by a Gorilla his faniily killed five Gorillas in revenge. The natives 

 hunt Gorillas with the aid of dögs. The dog bites the Gorilla and returns to his master 

 who waits for the Gorilla with the spear ready. He throws the spear at the Gorilla and 

 rims away. The dog repeats the maneuvre, until the animal is killed. The natives do 

 not eat the meat of Gorillas, nor that of Chimpanzees. 



Anthropopithecus ef. cottoni Matschie. 



The valuable material of Chimpanzees which Captain Arrhenius has brought 

 home consists of the following specimens: 

 N:o 70, 1 ef, old. »Forét dans le montagne prés de Rutshuru (5 heures), fevrier 8, 



1914. Il a falln trois coups de mauser pour l'abattre; il a voulu attaquer. 



La femelle blessée s'est enfuite avec un jeune. » 

 N:o 73, 1 J\ young, with milk-dentition and first molar; »forét dans le montagne prés 



de Rutshuru le 21 / 2 1914». This is according to Capt. Arrhenius's mark in his 



list identical with the young animal observed together with the old male 



killed '/, 1914. 

 N:o 160, $ ad., skull, skeleton and foetus, Rutshuru, March 1914. 

 N:o 161, ? ad., Rutshuru, 8 of April 1914. 

 N:o 162, young female with milk-dentition, belonging to the adult female just mentioned 



and taken together with her. 

 N:o 163, ^ ad., Rutshuru, 9 of May 1914. 

 N:o 178, ? ad., Rutshuru, 15th of July 1914. 

 N:o 179, $ young, child of the foregoing, with milk-dentition. 

 N:o 181, ? ad., Rutshuru, '/„ 1914. 

 N:o 224, ? ad., »Rutshuru, voir (70), Dec. 12, 1914». 



Thus the whole series is colleeted at Rutshuru probably at the same locality. Espe- 

 cially it appears probable that the last, n:o 224, is killed at the same place as the first 

 because Arrhenius has written »voir (70)» in his list under that number, and this re- 

 mark, I think, must be understood as referring to the locality, where n:o 70 had been 

 shot. This is of interest, because among the adult animals these two are most dissimilar 

 inter se, but on the whole the variation is very great as will be shown below. 



The young ones have a completely black pelage, but the chin is greyish white and 

 fchere is a white patch above and surrounding the anal opening. The colour of the naked 



