NOTES ON THE CANID# OF THE WHITE RIVER OLIGOCENE. 2) 
The third cervical vertebra is markedly different from that of Daphenus and quite 
like the corresponding vertebra of Canis. The centrum is moderately elongate (though 
shorter with reference to the axis than in most of the modern dogs), quite depressed and 
slightly opisthoccelous, and has a stout, prominent ventral keel, which is better developed 
than in Daphenus, or eyen than in Canis, and ends behind in a tubercle. The ante- 
rior face is broad, depressed, quite conyex and yery oblique in position with reference 
to the fore-and-aft axis of the centrum, while the posterior face is more nearly circular 
in outline. The transyerse process is, in general character, quite like that of Canis, 
but has a relatively smaller extension from before backward, and is less obviously 
divided into anterior and posterior projections, the ventral margin of the process being 
nearly straight. The vertebrarterial canal is proportionately much longer than in Canis, 
being nearly as long as the entire centrum. The neural canal is relatively larger and 
especially wider than in the modern genus, while the neural arch is long and broad and 
but slightly conyex on the dorsal surface. One noteworthy difference from Canis con- 
sists in the fact that the arch does not project oyer the sides, or pedicels, as an oyerhang- 
ing shelf, or does so but slightly. The neural spine is represented only by an incon- 
spicuous ridge. 
The zygapophyses are small and extend but little in front of and beliind the neural 
arch, which constitutes a very marked difference from Daphenus. In the latter, it will 
be remembered, the neural arches are deeply emarginated between each transverse pair 
of zygapophyses, so that when the vertebre are placed in their natural position, large 
vacuities occur between the successive neural arches. In Cynodictis, as in Canis, these 
interspaces are very narrow and in certain parts of the neck they are hardly at all visible. 
The fourth vertebra is somewhat shorter than the third, but is otherwise yery much 
like it and also like the corresponding vertebra of Canis. The transverse process is some- 
what larger and heavier than on the preceding vertebra, and the greater antero-posterior 
extension of its outer portion makes the vertebrarterial canal relatively longer than in 
Canis ; the inferior lamella is very thin and light. The neural spine is short and slen- 
der, but is relatively better developed than in most of the modern representatives of the 
family. 
On the fifth cervical the neural spine is higher but more slender than on the fourth. 
The sixth is not preserved in connection with any of the specimens. 
The seventh cervical is almost a miniature copy of the same vertebra in Canis ; the 
neural spine is relatively higher, more slender and more pointed than in most species of 
the existing genus, and the transyerse processes are proportionately longer and thinner, 
but otherwise the resemblance is very close and detailed. 
The number of thoracic vertebre cannot, as yet, be definitely stated, because in 
