1884.] The Creodonta. 257 
are of minor import, although in particular cases considerable. 
In spite of their often large size and evidently predatory habits, 
the Eocene flesh-eaters must be placed with the Insectivora. But 
as I have already pointed out,’ they have contemporaries which 
must go with them. These are two groups, the one with rodent, 
the other with edentate tendencies, the Tillodonta and Tznio- 
donta. The former of these is intimately allied to the living 
Chiromys of Madagascar, which itself is almost a lemur, by gen- 
i —Left mandibular ramus of Zyiřsodon guivirensis Cope, three-fourths nat. 
size, ee the Puerco beds of New Mexico. Fig. a, erena vem, , displaying the 
last porary molar in place; 4, the same from above; e, internal si 
the temporary molar removed and the permanent four wae “molaradisplayed i in 
the jaw; d, the fourth permanent premolar viewed from above. nal; from 
ol. 1v, Report U.S. Ceolapical Survey Terrs., F. V. Hayden in charge. 
eral consent. The whole of this assemblage I have regarded as 
an order of mammals to which I have given the name of the 
Bunotheria. In this order there are included six suborders, and 
; S. G. G. Surveys W. of tooth meridian, G. M. Wheeler in charge, 
Report U. 
IV, P. 85, 1877. oul Academy Philadelphia, 1883, p. 77. 
VOL, Xvitt.—wo, m1, 17 
