MEMOLRS 
OF THE 
CARNEGIE MUSEUM. 
VOL. 1. oe NO. 8. 
NEW SUILLINE REMAINS FROM THE MIOCENE OF NEBRASKA. 
By O. A. PETERSON. 
In a paper laid before the American Philosophical Society on February 17, 1888, 
Professor Cope proposed a new generic name for some Peccaries from the John Day 
formation. From his statement it appears that these Oregon forms agree in certain 
cranial characters with Hyotheriwm yon Meyer (Palxochewrus Pomel) of the Miocene 
of Europe. 
The material of this group known at present is still too imperfect, and in some 
eases the descriptions are too brief, to determine the validity, or non-validity, of the 
generic separations of Thinohyus Marsh! and Bothrolabis Cope.” From the brief 
descriptions and figures which Marsh gives of the two species Thinohyus lentus and 
socialis from the John Day, the writer infers that that genus and Bothrolabis are 
very closely related, if not the same. It is, however, best to await the discovery of 
more complete material, before positively expressing an opinion as to the relations 
between the different genera, which have been proposed by various authors. In 
dealing with these suilline animals, Thinohyus being the prior name used, I propose 
provisionally to treat Bothrolabis as a synonym.* 
The object of the present paper is (1) to fully describe the principal characters of 
1 Amer. Jour. Sci., [X., p. 248, 1879. 
2 Proc. Amer. Philos. Soc., Vol. XXV., p. 66, 1888. 
3W. J. Sinclair in a recent paper (Bull. Dept. Geol., Univ. Cal., Vol. IV., p. 135, 1905), has already arrived at 
similar conclusions. 
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