THE JUDITH RIVER GROUP. 733 
as the Professor assured me he would find a way out, I was satisfied, as I had a 
great deal of faith in his ability to accomplish almost anything. 
We were camped three miles below Cow island, and when we were ready to 
move, the Professor purchased an old scow, on which we loaded our outfit, swam 
our horses over and paddled across. ‘Then as the shore was low on that side, we 
turned it into a tow-path, hitching a horse to our scow, and after a great deal of 
labor we found ourselves at the boat landing of Cow island. The next day Prof. 
Cope took the steamer for Bismarck and Mr. Isaac and myself were left to com- 
plete the explorations; we remained until November, when hearing that the Indi 
ans were returning, and as cold weather had set in, we returned to Fort Benton, 
after a disagreeable joueney on account of snow. We saw great droves of ante- 
lope, deer and some buffalo. I suffered a good deal on my return trip by stage, 
but after the troubles were over and I was safe within the bounds of civilization, . 
I could but congratulate myself with the feeling that I had helped advance the 
interests of Science. The discomforts of the explorer are soon forgotten in the 
results accomplished. _I will give my readers a partial list of the species discov- 
ered, to show the results of the expedition. All are new except those already de- 
scribed, and have been described by Prof. Cope in Bulletin of U. S. Survey. 
REPTILIA. 
DINOSAURIA. Paronychodon lacustris. 
Gonipoda. ORTHOPODA. 
Triodon formosus. Paleocincus costatus. 
Lelaps cristatus. Dysganus peiganus. 
L. falculus. D. bicarinatus. 
L. lavifrons. D. haydenianus. 
L. hazentanus. Dichocrinus pentagonus. 
L. incrassatus. D. perangulatus. 
Amblysodon horridus. D. calamarius. 
A. lateralis. Trachodon mirabilis. 
Zapsolis abradeus. Monoclinus crassus. 
CROCODILIA. 
PROCALIA. Crocodilus humilis. (Letdy.) 
TESTUDINATA. 
CRYPODIRA. Polythorax missouriensts. 
- Trionyx foveatus. Compserny suas 
T vagans. ELASMOBRANCHII. (L. L.) 
T, mammilaris. Myledaphus bipariita. 
Plastomenus punctulatus. Hedronchus sternbergu. 
Iv—49 
