228 
COEYPn'JDOX. 
Another animal, obtained at another time and place, is represented by 
fragments of both mandibnlar rami, with molar teeth. The posterior molar 
closely resembles that of the preceding specimen. Accompanying these 
are the extremities of both of the tibiae. These are very flat, and the 
obliquities of the anterior and posterior faces are nearly equal. The cal¬ 
caneal articular facet is wide, and but little produced beyond the astragalar, 
and is separated by an oblique low crest, which only extends part way 
across the extremity of the bone. 
Measurements. 
M. 
Long diameter of the end of the tibia.... . 0. 0G7 
Short diameter of the end of the tibia ...... 0. 043 
Diameter of the shaft two inch?s above the astragalar facet.... 0. 02G 
A considerable number of bones of a third individual were found near 
the locality of the one first described. The premaxillary, maxillary, and 
mandibular bones are included, the first two without teeth. The posterior 
mandibular tooth is also wanting, which circumstance renders the identifica¬ 
tion of the species less secure than is desirable. The forms of the remaining 
teeth, with the canine and premaxillary bone, are those regarded as charac¬ 
teristic of the Corypliodon simus. Numerous bones of tlie limbs accompany 
the cranial fragments, but they belong to more than one individual. The 
distal ends of the femora belong to a small and a large individual. Botli 
agree in having a moderately-elevated patellar groove, with the inner edge 
slightly elevated, and a notch in the outer edge marking the commencement 
of the condylar surface. The humeral head and condyles are relatively 
large as compared with the femur, as is usual in the genus. The articular 
surface of the latter is sliallowly hourglass-shaped, and without ridges. 
The greater tuberosity of the former is very large and incurved, and 
separated by a marked bicipital notch from the narrow, projecting, lesser 
tuberosity. The heads of the femora are round, with the fossa of the liga- 
mentum teres forming a deep notch from the border. 
The teeth found with tliese specimens are of the normal size of this 
species, and the enamel is nearly smooth. 
