PALiEOMASTODON PAEVUS. 
167 
These remarks apply likewise to the tibia of P. headnellt. The dimensions (in centimetres) 
of this bone are : — 
Extreme length 38'8 
Width of proximal articulation (for astragalus only) .... 11'5 
„ middle of shaft 5’3 
„ distal articulation 6 
The length of the tibia of P. beadnelli is 63'5. 
Eight tibia of Palceomastodon {‘!)parvm : A, from front ; B, proximal end ; C, distal end. 
as., surface for astragalus ; cn., cnemial crest ; /., /.', surfaces for fibula ; surface for inner condyle of femur ; 
intercondylar process ; i.m., internal malleolus ; o., surface for outer condyle of femur ; p., internal 
distal prominence. | nat. size. 
Text-fig. 59. 
Left astragalus of Palceomastodon (2) parvus : 
A, from above ; B, from below. 
ect., ectal facet ; i.m., surface for internal malleolus of tibia ; nav., navicular facet ; sus., sustentaeular facet ; 
tib.j tibial facet. |- nat. size. 
