cHi'XioRY : \'()TiiM;crrs, an American eocene primate 



67 



These contra.sts, almost without exception, arc coiTelated with the wide (HffetxMiccs in tlie i)()S(% 

 habitual movements, and musculature of the fore limb, bet\\een Xolhardn.s, which was a bent-limbed, 

 arboreal quadruped, leaping about on top of the branches, and the Old World i:)i-imates and man, which 

 are primarily a long-armetl, brachiating stock, swinging the arms freely in all directions. 



Fig. 4. Arm musck's of l'n)pitlucins diadniKi. Afttr Milne Kdwards. 



Fig. ."). Ann nnisdrs of Pmpifhccii.s illai/ciiKi (( 'ontinncd ). After Milnt- Kdwards. 



The pi'ominence and extension of the supinator crest of Xatluirdu.s, {or instance, shows that the 

 supinator longus nuiscle was extended well up the ai-m, as it is generally in ])rimitive mammals. (See 

 Cuvier and Laurillard's dissections of marsui^ials, i-odents, carnivoi-es, etc.) Milne Edwards (oy>. cit., 



