vertebrata from madagascar. 515 



Lemuridae. 

 12. Propithecus diadema Bennett. Diademed Sifaka. 

 One fine adult male from Didy, Eastern Forest. 



13. Propithecus verreauxi Grandidier. Verreaux's Sifaka. 



Fifteen skins and skulls, all but three of which are males. This 

 species was common on the Upper Siribihina River, and at a locality 

 twenty-five kilometers east of Tulear, in open country. The series is 

 remarkably uniform in coloration; the dark crouTi-patch varies from 

 black to a blackish brown, the pale grey area on the back varies to 

 nearly all white in some, and there is a distinct median line of pale 

 rufous on the throat and chest in others, but apart from these slight 

 deviations, they are very true to type. 



14. LicHANOTUs laniger (Gmelin). Woolly Avahi. 

 One specimen from the Eastern Forest. 



15. Lemur nigrifrons E. Geoffroy. Black-fronted Lemur. 

 One from Didy, Eastern Forest. 



16. Lemur fulvus E. Geoffroy. Fulvous Lemur. 

 One from Didy, Eastern Forest. 



17. Lemur rufifrons Bennett. Red-fronted Lemur. 



A fine series of six males and ten females, all from localities on the 

 Upper Siribihina River and some thirty miles south of Berevo. The 

 sexual dichromatism in this species is very striking; but apart from 

 this, the series of each sex shows extremely little variation in color. 

 This and Verreaux's Sifaka were the two species of Lemurs most 

 frequently met with. 



