128 



Bulletin American Museum of Natural History 



[Vol. LXXII 



Dendrohyrax dorsalis nigricans Hahn, 1934 (part), Zeitschr. fur Saugetierkunde, 

 Bd. IX, p. 257. 



Dendrohyrax dorsalis emini Hahn, 1934 (part), op cit., p. 259. 



Dendrohyrax d. emini is a large tree hyrax typical of the genus in cranial char- 

 acters and the mammary formula. It belongs to the dorsalis group of forms in 

 which the muzzle is largely naked in the adult animal, but differs from the typical 

 subspecies in the pelage which in emini is usually more lightly colored and harsher. 

 In many skull characters it resembles D. d. dorsalis but differs from that race 

 in the fact that the interparietal-parietal sutures are closed and the interparie- 

 tal -supraoccipital suture open, the reverse of which obtains in the Gulf of Guinea 

 specimens. 



Represented by 33 skins, 2 skeletons, 37 skulls and 5 fetuses in alco- 

 hol, collected as follows : 



Akenge, 3 ( cT &), Oct. 2-18, 1913. 



Avakubi, 1(9), Oct. 22, 1909. 



Gamangui, b (& &), Feb. 10-18, 1910. 



Medje, 6 (5 9 9 , 1 fetus), Jan. 21-Oct. 1, 1910. 



Ngayu, 2 (d\ 1 fetus), Dec. 19, 1909. 



Niangara, 3 (cf cf), Nov. 20, 1910-April 28, 1913. 



Niapu, 24 (14 cf &, 5 9 9,2 juv. sex?, 3 fetuses), Nov. 10, 1913- Jan. 3, 1914. 



The ages are represented as follows : 



Stage 



Mal 



I 





II 





III 



1 



IV 





V 



2 



VI 



1 



VII 



4 



VIII 



16 



Females 

 2 



Sex? 

 2 



24 



11 



Specimens with skins were taken in every month except March, 

 June, August and September, but there is poor representation of such 

 specimens in all the season from March to September. This is, how- 

 ever, of little importance for none of the specimens were taken as much 

 as four degrees from the equator, and the two short dry periods in 

 January and July probably produce no change in the pelage of the 

 hyraxes. 



The monthly catch of specimens was as follows : January, 2 ; Feb- 

 ruary, 3; March, 2; April, 2; July, 1; October, 5; November, 5; 

 December, 13. 



