O: 0; March— Verlebricte Dije ta titneicae 368 
type, throughout the whole Tertiary, is strown with the remains 
of such ambitious offshoots, while the typical pig, with an 
cn: never lost, has held on in spite of Catastrophes and 
Evolution, and still lives in America to-day. In the lower 
Eocene, we have in the genus Parahyus apparently one of these 
short-lived, eet branches. It attained a much larger 
size than the — lineal sori and the a of its teeth 
these early Suillines, with the possible —— ss Parahyus, 
appear to have had at least four toes, all of usa 
In the lower Miocene, we find the genus iskenn seem- 
ingly a true Suilline, and with it remains of a larger form, 
Hlotherium, are abundant. The latter genus occurs in Europe 
e 
aberrant Suilline offshoots, pra mentioned. Some of the 
species were nearly as large as a Rhinoceros, more in all there were 
but two serviceable toes; the outer digits, seen in living ani- 
mals of this group, being represented only by small rudiments 
concealed beneath the skin, In the upper Miocene of Oregon, 
Suillines are abundant, and almost all belong to the genus 
Thinohyus, a near ally of the modern Peceary (Dicotyles), but 
having a greater number of teeth, and a few other distinguish- 
ing features. In the Pliocene, Suillines are still numerous, an 
are all trne Poocatiens No authenticated remains of the genera 
Sus, Porcus, Phacocheerus, or the allied Hippopotamus, the Old 
World Suillines, have been found in Ameri ica, although several 
announcements to that effect have been made. 
In the series of generic forms between the lower Eocene 
Hohyus and the existing Diciglen which I have very briefly 
discussed, we have ap arently the ancestral line ending in the 
typical American Suillines. Although the demonstration is 
