PLATE CCXVII 



Phalanges and Sesamoids of Manus of the Type of Beontops robustus Marsh 



Plate prepared under the direction of Professor Marsh. One-half natural size. (See p. 668) 



Second phalanx of second(?) digit, lateral or outer view; 2, the same, anterior view; 3, the same, medial or inner view; 4, the 

 same, posterior view; 5, the same, proximal view; 6, the same, distal view; 7, distal phalanx of second(?) digit, lateral or 

 outer view; 8, the same, anterior view; 9, the same, medial or inner view; 10, the same, posterior view; 11, the same, pro.ximal 

 or superior view; 12, the same, distal or inferior view; 13, metacarpal sesamoid of second (?) digit, lateral or outer view; 14, the 

 same, anterior view; 15, the same, medial or inner view; 16, the same, posterior view; 17, the same, end view; 18, phalangeal 

 sesamoid of second(?) digit, medial or inner view; 19, the same, posterior view; 20, the same, anterior view; 21, the same, 

 proximal view; 22, the same, distal view. The principal ligamentous and muscular attachments of these elements are given 

 on page 717. • 



