242 On the Extinct Dogs of North America. [March, | 
short, sharp nose, must have given it a physiognomy something l 
like that of the existing fennec o 
Nubia. : 
Filhol has described seventeen 
species of this genus from the | 
Phosphorites of France, and has 
given several generic names to 
groups which do not seem to be 
distinct from it. 
Canis Linn. 
The oldest species of true dog” 
known to me from American forme — 
tions is the C. brachypus Cope, from 
Fic. qi Galecynus lemur Cope, 5 ; 
skull and mandibular ramus (Fig. d), the coyote, but has the small se 
. the torial teeth of all primitive Canide. 
one half natural size. From 
John Day epoch of Oregon, Original. 
the coyote, and the sagittal crest of the skull more elevated. P 
True dogs are more numerous in the Loup Fork beds. Le 
“i describes C. vafer and C. temerarius, the first B: 
large as the kit-fox; and the second between 
the red fox and the coyote in dimensions, both 
with small sectorials. He also describes a i E 
species, with large sectorials, under the name © 
haydeni, which may be an AZlurodon, je 
superior teeth are not known. These $p A 
are from Nebraska. Another large species ' 
the C. ursinus Cope, from New Mexico. ™ 
not only large sectorials but large nee F 
berculars below, which arouses the § pr 
that when the superior dentition is obtain’ 
will prove to be an Amphicyon. The 
the mandible is very peculiar. ee. 
- Canis lupus (the wolf) and C. latrans (i 
i er, TA jsd coyote) are found in the Pliocene i : à 
pus; b, right astraga- beds. From these species many of the 
sane papes ” ticated dogs have been derived. 
three left metatarsals i 
do: all three. LOMARCTuS Cope. 
of « 
eighths nat.size. Ori- 
ginal. 
One species known from the Loup F one 
