282 
The American Geologist. 
May, 1896- 
In the inferior dentition of Daphamus there are available 
for comparison p. 3 and 4 and the succeeding molars. In Tem¬ 
nocyon is a simple tooth with somewhat elongated talon or 
heel, the posterior edge of the protoconid descending more 
sharply than the anterior. In Daphamus , however, the tooth 
is less simple, there being developed a minute metaconid and 
the anterior edge of the protoconid descends more sharply 
than the posterior; the tooth, moreover, shows greater 
lateral compression and a more strongly marked catting 
structure. The increase in size of pTT over p7~8 is regular and 
proportionate to the increase between pTH of T. altigenis over 
Daphamus. The main cone does not incline backward and 
the anterior edge is less sharply inclined. The metaconid is 
developed to a greater height, with apex less obtuse than in 
the type of Temnocyon. The heel is rather flat and the entire, 
tooth shows greater lateral compression. 
The contour of the crown of mTi in Daphamus is more like 
T.ferox than that in the type species, in this latter being 
very irregular with much compressed centres; the antero¬ 
posterior diameter is one-third less, a proportionate diminution. 
The hypoconid is nearer the middle of the tooth than it is in 
Daphamus; the entoconid is very minute, if developed at all. 
The anterior position of the tooth closely resembles both 
species of Temnocyon under consideration, but the posterior 
more nearly that of the larger species. In fact, taking into 
consideration the proportionate difference in size and the 
fact that the entoconid, while being very minute, is propor¬ 
tionately more robust in Daphamus , the tooth is nearty iden¬ 
tical with that of T.ferox. 
m 72 is equal in size to that of T. altigenis and, hence, is pro¬ 
portionately more robust. While the protoconid in Temnocyon 
is developed near the middle of the tooth, it is in Daphamus 
pushed anterior thereto, rising from the extreme anterior edge ; 
its height is equal to that in the type species. The hypoconid 
is however not so robustly developed in Daphamus. This part 
of the tooth is noticeably elongate and in consequence the 
separating valley or groove is not so sharp as in T. altigenis. 
iO is elongate and generally flat, the two cones being very 
minute, the anterior one slightly the larger; the antero-pos- 
terior diameter is I mm, transverse 6 mm. The tooth overlaps 
^2 at the posterior internal side. 
