248 
CORYPHODON. 
longer, the antero-posterior diameter equaling the transverse. The two 
antero-inferior facets are very unequal, the navicular being the larger, and 
they are separated by a considerable tuberous angle. 
Measurements. 
Diameter of tbe shaft of the clavicle. 
Diameter of the articular extremity of the clavicle 
Diameter of the glenoid cavity of the scapula. 
Long diameter of the scaphoid.... 
Long diameter of the lunar. 
Width of the cuneiform..... 
M. 
0.015 
0. 025 
0. 060 
0. 040 
0. 045 
0. 050 
/ antero-posterior. 
Diameter of the trapezoides } transverse.. 
( longitudinal in front 
^ ^ . i longitudinal in front 
Diameter of the trapezium J . 
Length of the first metatarsal. 
Length of the second metatarsal. 
Length of the third metatarsal. 
Length of the fifth metatarsal... 
Length of the first digit.... ... 
Length of the third digit... 
0. 025 
0.017 
0.022 
0. 021 
0. 020 
0. 0.31 
0. 059 
0. 065 
0. 050 
0. 060 
0.107 
It will be observed that this fore foot differs from that referred to the 
Corypliodon molestus in the less relative width of the fifth metacarpus, 
resembling closely in this respect the corresponding bone in the foot referred 
to No. II. The present animal, although of the same size as No. II, has the 
epiphyses of the metacarpals codssified, while in the latter they are separate. 
Coryphodon No. IV. 
Plate Ixii; Plate Ixiii, figs. 1-4. 
This individual consists of loose pieces which I found lying together, 
December the 7th, 1874, and includes lumbar vertebrae, humerus, ilium, 
femur, fibula, and astragalus. The pieces are free from distortion, excepting 
the ilium and the proximal part of the humerus, and are worthy of notice 
on this account. 
The lumbar vertebra have the centra somewhat broader than Ipng, and 
depressed so that the articular faces are transverse ovals. The posterior 
face is concave, the anterior slightly convex at the borders, and a little 
concave medially. The neurapophysis stands on the anterior two-thirds of 
the centrum, and its section is a stout oval; the neural arch is capacious. 
