246 
OORYPHODON. 
Proximal transverse diameter of the second metatarsus . 
Proximal transverse diameter of the third metatarsus... 
Proximal transverse diameter of the fourth metatarsus . 
Proximal transverse diameter of the fifth metatarsus ... 
Distal diameter of the second metatarsus. 
Distal diameter of the third metatarsus... 
Distal diameter of the fourth metatarsus.. 
Distal diameter of the fifth metatarsus. 
Length of the first phalange of the third digit.... 
Length of the second phalange of the third digit. . 
Length of the third phalange of the third digit. 
Length of the first phalange of the fifth digit. 
Length of the second phalange of the fifth digit (unguis) 
Width of the second phalange of the fifth digit (unguis) 
0. 021 
0.021 
0.027 
0. 022 
0. 02G 
0. 028 
0. 028 
0. 022 
0. 015 
0. 011 
0. 014 
0. 013 
0. 013 
0. 019 
The caudal vertebrm indicate a well-developed tail of moderate length. 
Parts or wholes of nine vertebrae are preserved, all without neural arch. 
None of them present such elongate proportions as in the corresponding 
parts of the Oreodonta or Carnivora^ but the stoutest are longer than broad. 
The inferior face of the centrum is characterized by the presence of two 
lateral angles at the posterior extremity, which are connected by a plane 
which truncates the lower surface behind. This surface is concave antero¬ 
posteriorly. The centra of the larger vertebrae are especially characterized 
by the presence of a tuberous transverse process at the superior lateral angle 
of the anterior face, and a short flatter transverse process near the posterior 
extremity, and opposite the middle of the articular extremity. These pro¬ 
cesses are separated from each other by a deep notch. The anterior 
articular face is subtriangular; the posterior, subquadrate. 
Measurements. 
Leugtii of the three median caudal vertebrae 
Length of the first of the three. 
Diameter of 
Diameter of 
Length of a 
Diameter of 
Diameter of 
. . X. 1 n s transverse. 
the anterior articular face < 
the centrum at the lateral notches. . . 
more distal caudal..... 
the articular face of the same. 
the articular face of a small distal vertebra 
M. 
0. 071 
0. 025 
0. 023 
0. 016 
0. 013 
0.021 
0. 012 
0. 008 
