50 



HAPALEMUR SIMUS. 



occupying the end of the rump and the upper part of 

 the base of the tail , exactly similar to Avhat we observe 

 in the Avahi (Avahi laniger), and of which there is no trace 

 in Hapalemur griseus. The muzzle greyish iu Hapalemur 

 griseus , with a narroAv longitudinal blackish stripe between 

 the eyes , is , in Hapalemur simus blackish and this colour 

 occupies also the whole space between the eyes. The chin 

 and throat are tinged with brown in H. simus and not 

 greyish as in 11. griseus. 



Measurements (French feet). 



H. 



simus. 



Total length 2 f. 8 inch. 



Tail 1 f . 5 inch. 



Length of skull .... 3 inches. 



Breadth of skull . . . . 2 i. 3. 1. 



It appears that Hapalemur simus is a very rare species. 

 Our traveller , Mr. Audebert , although exploring for several 

 years the country surrounding the large bay of Antongil 

 situated on the N. E. Coast of Madagascar, a region 

 where the Hapalemur griseus abounds , could procure no 

 more than one specimen of Hapalemur simus and it was 

 altogether not met with on the western part of the is- 

 land where H. griseus is by no means a rare species. 



T^otes from the Ueyden IMuseum, Vol. II. 



