6 
Measurements. M. 
Diameter of second superior molar sibene: paaLeNe ty 004 
-C transverse... 2... .0035 
in , x antero-posterior... .0020 
se poet Sleisarele -. 0025 
~Width of superior incisor..... He Lesage sess Bes .0020 
Length from base of first superior molar to base of in- 
E1SOD rece aks sao ew Sa cwaieas Cite hetad sloniiing Sems-3 8 RAN .0065 
Width between bases of first molars.................5 0020 
Length of fist inferior molar........ 2... 00. c cece eee 0083 
Depth of ramus at second molar. .............6-5505- -0050 
Width ee Below. 8% ee duanwugeagsewetad 0035 
MENISCOMYS MULTIPLICATUS, sp. nov. 
This species is considerably larger than the WZ. hippodus, and differs in 
the greater complication of the enamel plates of the inferior molars. The 
four crescentic areas are discernible on the worn surfaces of the crown, of 
which the posterior inner is reduced in size on the middle two molars. 
The two enclosed lakes have very plicate borders which form many small 
loops, and sometimes they are fused into a single irregular area. The last 
molar is extended a little posteriorly, and all present an entrant angle be- 
tween the inner columns. The coronoid process originates opposite the 
third molar, and the masseteric ridge ceases below the middle of the jaw 
below the second molar. 
Measurements. M. 
Probable length of inferior molar series.............. 0120 
Length of posterior three molars.........-........005 -0095 
Diameter. of second mota® ( antero-posterior........... .0030 
tPANSVEISE cic aase a ores 0025 
Length of fotifth Molar. «i ..c.csneswwae sce eas coum 0040 
Depth of ramns below second molar.................. 0070 
Width ue HE) CGR i aensle 0050 
CaARNIVORA. 
TEMNOCYON ALTIGENIS, gen. et sp. nov. 
Gen. Char. This genus is only known from a mandibular ramus which 
su, ports all the teeth excepting the incisors and probably the last molar. 
There are four premolars and probably three true molars, all having the 
general character of those of Canis. The only character by which I dis- 
tinguished the new genus Zemnocyon is seen in the form of the heel of the 
sectorial tooth. Instead of presenting a concave surface bounded by ridges 
or tubercles, it presents a more or less median cutting edge as in the poste- 
rior premolars of O.rywna. In the typical species, there is but one row 
of cusps on the first tubercular molar, but they are not elevated, and stand 
on one side of the crown. In comparing this genus with types other than 
Cunide, one can recognize in its characteristic peculiarity of the sectorial 
