NO. 19 



OLIGOCENE EAGLE WETMORE 



Cuneiform bone (lig. S) present, showing no especial peculiarities. 



Metacarpals from both right and left sides (figs. 9-12) preserved 

 (the former nearly complete, the latter with part of anterior end 

 missing) ; relatively strong and robust ; shaft of the second metacarpal 

 particularly heavy; first metacarpal with extensor attachment project- 

 ing strongly, the tip inclining inward; attachment for pollex broad. 



Figs. 9-12. — Four views of left metacarpal of 

 Palacoplancus sternbergi, natural size.' The smaller 

 figures represent the proximal and distal en4s. 



the articular surface plane, enlarged by the expanded margins ; carpal 

 trochlea strongly angular with the anterior carpal fossa strongly 

 marked; pisiform process projecting as a strong tubercle with a deep 

 internal ligamental fossa about its base ; external ligamental attach- 

 ment also strongly marked ; third metacarpal straight and strong, 

 somewhat flattened from above downward toward distal end ; a shar])ly 

 outlined sulcus tendini musculi on outer face extending about two 

 thirds the length of the bone, entirely on the lateral face; muscular 



