576 The American Naturalist. ~ [Junė, 
great strength especially in the lumbar regions. The pelvis is broad 
and rugose, the ilium and ischium being thick and stout. 
This species extends the range of Dinictis, this being the first spe- 
cimen reported from the Titanotherium Beds, and is interesting as being 
more primitive and pointing to a greater antiquity for the genus. 
MEASUREMENTS D. fortis D. felina 
M M 
Length of bony palate, 075 072 
Breadth of bony palate (posterior edge) 070 069 
Breadth between canines, 030 026 
Length of upper molar series, 048 049 
Breadth of upper incisor series, .028 029 
Upper canine, transverse diameter, .010 .008 
Upper canine, fore and aft diameter, .016 012 
Length of mandible from condyle, 126 119 
Length of lower molar series, 055 052 
Breadth of lower incisor series, 015 .016 
Lower canine, transverse diameter, 004. .006 
Lower canine, fore and aft diameter, 005 .008 
Humerus, length, 192 172 
Humerus, breadth, proximal end, head and 
great tuberosity, .043 .038 
Humerus, breadth, distal end, 047 .042 
Radius, length, i .148 
Radius greatest diameter of head, 020 
Radius breadth of distal end, .030 
Ulna, length, 191 
Ulna, distance from olecranon to beak, .030 
_ Ulna, distance olecranon to coronoid, .020 
Femur, length, 190 
Femur, breadth, proximal end (head and great 
trochanter) 050 .038 
Femur, breadth, distal end (greatest width of 
condyles) 046 034 
Tibia, length, including maleolus, .186 168 
Tibia, breadth proximal end, 041 034 
Tibia, breadth distal end, 5» OFF .020 
Calcaneum, length, 055 043 
Astragalus, length, 035 027 
Metatarsal IV, length, .064 .053 
