T^NIODONTA. 
169 
face is convex transversely in front, concave in all directions behind the 
front. The two suiDerior facets are distinct, and it is only one* of them 
whose plane rises into the posterior elevation. On the side of this, the lateral 
facet is distinct to the front. An ungual phalange is preserved, but wants 
the inferior surface. It is compressed, its superior angular line obtuse, and 
but little curved antero-posteriorly. The apex is moderately fissured. The 
proximal articular face is composed of two vertical concavities separated by 
a well-marked vertical angle. Its superior border is produced backward. 
The sides of the phalange are pierced by numerous nutritive foramina. 
Length preserved of the large superior incisor.. 0. 045 
Length preserved of the posterior enamel face.. 0. 029 
Antero-posterior diameter of the grinding-face of the same.. 0. 019 
Transverse diameter of the same. 0. 009 
Transverse diameter of the same at the middle. . - - 0.008 
Transverse diameter of the small incisor..... 0. 005 
Antero-posterior diameter of the same.. 0. 009 
Transverse diameter of the inferior incisor. . 0. 015 
Antero-posterior diameter of the enameled part of the same - ... 0. 014 
Transverse diameter of the molar... 0. 018 
Long diameter of the humerus at the deltoid ridge. 0. 035 
Short diameter of the humerus at the deltoid ridge. 0. 025 
Diameter of the shaft above the arterial foramen .. 0. 034 
Diameter of the arterial foramen ... 0. 010 
Extent of the iirojection of the inner tuberosity.. 0. 010 
Estimated extent of the distal end of the humerus... 0. 060 
Depth of the ulna at the middle.... 0. 029 
Width of the ulna at the middle....- . 0.011 
Width of the ulna at the olecranon. ... 0. 024 
Width of the head of the radius... 0. 032 
Depth of the same . . 0. 018 
Depth of the shaft at the middle ..... 0. 012 
Width of the shaft at the middle. 0. 014 
Length of the cuboid in front.... ... 0.010 
Length of the cuboid behind..... 0.016 
Width of the cuboid in front ... 0. 015 
Length of the ungual phalange .... 0. 030 
Width posteriorly. 0. 013 
