MEGATHERIID^. 93 



Pig. 19. 



ScelidotJierium leptocephaLmn. — Frontal aspect of the cranium ; from tlie 

 Pleistocene of the Argentine Republic, y-. 



32995. The cranium, imperfect anteriorly; from the Eio Plata. 

 {Fig.) This specimen is figured by Owen in the ' Phil. Trans.' 



for 1857, pL viii. fig. 1 ; its vertical height is somewhat 

 less than that of No. 37308, but the difference is in all 

 , probability only a sexual one. 



Bravard Collection. PurcJiased, 1854. 



32996. Fragment of the hinder portion of the right ramus of the 



mandible, containing the last two molars. 



Bravard Collection. Purchased, 1854. 



32997. Fragment of the opposite ramus of the same mandible. 



Bravard Collection. Purchased, 1854. 



The originals of the following casts belong to the same individual as 

 the type skull., and are preserved in the Museum of the Royal 

 College of Surgeons, by the Council of ivhich body they tvere 



pi-esented. 



M. 3585. Cast of the left scapula. 



M. 3584. Cast of the adjacent portions of the right scapula and 

 humerus. 



M. 3586. Cast of the left femur. Figured by Owen, op. cit. pi. xxv. 

 figs. 5, 6 ; the length is 0,395, and the distal width 0,220. 



M. 3587. Cast of the right femur, wanting the distal extremity, and 

 with the astragalus cemented by matrix to the head. 



M. 3588. Cast of the left astragalus. Described and figured by the 

 ■writer in the ' Proc. Zool. Soc' 1886, p. 494, pi. xlix. fig. 3. 



