106 | Proceedings of the Association 
placed with the Cheropotamide ; from all the known genera of 
that small family it differs in having no accessory tubercles on 
the molars: the posterior molar has a larger third lobe than either 
Cheeropotamus, or Dicotyles ; and agrees somewhat with the fig- 
a sian of the last named animal, I know not if the Protoche- 
rus exhibits any tendency towards the Hippopotamide. 
e author then alluded to a new species of Racoon, ireise 
priscus, of which several oe and phalanges had been procured. 
The differences between this and P. lotor are very minute, and 
would not be intelligible without plates. 
The last genus was known ouly by a single tooth — Fig.3.. 
represented in the accompanying figure, and suppos qe 
be a superior left canine ; it is very much flattened ; the 
external surface is regularly and slightly convex ; the in- 
ternal face is concave, with an impressed longitudinal line 
in the middle; this surface has several small cusps as in 
the figure. 
From the appearance of this tooth, the author believes : 
it to have belonged to a large insectivorous animal, allied toner, ms 
to Scalops; the only teeth resembling it being found in 
the family of the Talpidz :; the author has seen some canines in the 
American genera of this family, which have the cusps. 
in a similar manner, but none have been seen so muc 
ed ; and in none does the fang of the tooth retain its flattened form 
for so great a distance. We anxiously await the light which 
will be thrown on the affinities of this animal, by farther explant 
tions, at the same locality. 
In the mean time, asa slight acknowledgment for the favor 
which Mr. Snyder has conferred upon science by collecting and 
with much pains the interesting specimens which 
have given rise to the present communication, it is but proper 
that the last mentioned species should be dedicated to him, under 
the name, Anomodon Nnyderi. 
In conclusion the author returns his acknowledgments im Prof, 
Agassiz, for the numerous suggestions, with which he has favored 
him, and without which the affinities of the Dicotyloid animal 
described above under the name of Hyops josueelinana would 
have remained in complete obscurity, 
2. Anew species of Troglodytes ; by Prof. Jerrrres Weumer 
Dr. Wyman exhibited four crania and some of the other portions 
of the skeleton of a new species of Troglodytes, ( 7’. gorilla, Sav- 
age, ) recently discovered by Dr. Thos. 8. Savage in the Mpon we 
country on the Gaboon river in Africa, This species differs eee 
the Enché-eco, or T.. niger, Geott., a Ts yte 
—1, in its much 
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