THE OSTEOLOGY OF ELOTHERIUM. 309 



In Anthracotherium (Kowalevsky, '73, Taf. XI, Figs. 53, 54) the phalanges are of 

 the same general type as in Elotherium, 'but are proportionately much shorter and 

 stouter. In Hippopotamus they are short, broad and very heavy, while the unguals are 

 reduced and of nodular form. In Sus the three phalanges of a digit are together con- 

 siderably longer than the metacarpal, which is far from being the case in Elotherium ; 

 they are also of quite a different shape from those of the latter. The proximal phalanx 

 is much thicker in proportion to its length, and its proximal trochlea is deeply grooved 

 across its whole face for the metacarpal carina. The ungual phalanx is longer, broader 

 and more depressed and pointed. 



Measurements. 



Carpus, height 0. 072 



Carpus, width 077 



Scaphoid, height 038 



Scaphoid, breadth 026 



Scaphoid, thickness • - 047 



Lunar, height '■ 047 



Lunar, breadth 036 



Lunar, thickness ." 050 



Pyramidal, height 033 



■ Pyramidal, breadth 027 



Pyramidal, thickness 039 



Pisiform, length 042 



Trapezoid, height 025 



Trapezoid, breadth 012 



Trapezoid, thickness 019 



Magnum, height (excl. of head) 025 



Magnum, breadth , 035 



Magnum, thickness 048 



Unciform, height 036 



Unciform, breadth 037 



Unciform, thickness .050 



Metacarpal iii, length (in median line) 167 



Metacarpal iii, width proximal end 044 



Metacarpal iii, width distal end 039 



Metacarpal iii, thickness proximal end 039 



Metacarpal iv, length 161 



Metacarpal iv, width proximal end 038 



Metacarpal iv, width distal end 039 



Metacarpal iv, thickness proximal end 035 



Phalanx 1, digit iii, length , .060 



Phalanx 1, digit iii, width proximal end 039 



Phalanx 1, digit iii, width distal end 032 



Phalanx 2, digit iii, length 04S 



Phalanx 2, digit iii, width proximal end 031 



Phalanx 3, digit iii, length 028 



