PEIMATES PEOM MADAGASOAE. 



139 



resemblance to the femur of Bradypus it more closely resembles that of the Lemurs. 

 He says : " The heavier and more massive appearance of this bone compared with that 

 of extant Lemuroids is easily explained by the very large size the fossil species must 

 have attained to ; it is also to this same cause that the small height of the great 

 trochanter must be attributed. I think, then, that the femur described as belonging 

 to a Sloth of the family of the Bradypodidae belongs to an extinct Lemur of great size, 

 probably to Megaladapis madagascariensis or to a related species." 



The very curiously flattened shaft of both these femurs seems to me of interest in 

 connexion with the supposed aquatic mode of life of some of the extinct Lemuroids 

 before described, as this flattening of the femoral shaft is a feature which may be 

 observed in aquatic mammals belonging to various orders. The femur of Pcclceo- 

 -propithecus ingens figured by Dr. Grandidier in his memoir on ' Extinct Lemuroids ' 

 presents the same peculiarity. 



Text-fig. 39. 



Os innominatum of Palceopropiihems maximus (?). 

 The ischiac portion has been broken and re-set during life. 



I propose provisionally to denote the second of these femurs (text-fig. 38, B) by 

 the name of Megalindris gallienii after the distinguished founder of the Academie 

 Malgache. The dimensions of this femur are given in Table 22, No. 28. 



The subjoined tables include series of tibiae and scapulae and pelves, but the only 

 bone to which any reference is here necessary is the 05 innominatum shown in text-fig. 39 



VOL. XVIII. — PART 11. No. 11. — May, 1908. u 



