184 LLOYD’S NATURAL HISTORY. 
house, ‘‘the true molars are very small, and longer than broad ; 
those of the upper jaw presenting numerous small tubercles ; 
in the lower jaw the outer edge of the molars is produced and 
divided by notches, so as to leave three or four bristly points in 
each. On the outer side of each molar,” excepting the more 
anterior ones of the series, “are several small, blunt tubercles, 
which must be nearly on the level of the gum in the living 
animal. Between all the teeth, both of the upper and lower 
jaws, excepting the four posterior molars of the lower jaw, there 
is a space which is sometimes equal to the width of the teeth, 
but generally less. The ramus of the lower jaw is twisted in 
such a manner that the outer surfacé of the true molars comes 
in contact with the masticating surface of those of the lower 
Jaw.” 
In addition to the similarity of the teeth, the genus shows a 
resemblance to the extinct Jurassic Marsupials of Europe in 
the presence of a narrow but well-defined channel, known as 
the mylo-hyoid groove, on the inner side of each branch, or 
ramus, of the lower jaw. 
That the genus, like the fish Ceratodus of the rivers of Queens- 
land, and several other peculiar Australian types, is a direct 
survivor from the Secondary fauna of Europe, there seems no 
reasonable doubt. 
I. BANDED ANT-EATER. MYRMECOBIUS FASCIATUS. 
Myrmecobius fasciatus, Waterhouse, Proc. Zool. Soc., 1836, p. 
69 ; Thomas, Cat. Marsup. Brit. Mus., p. 312 (1888). 
(Plate XXX.) 
Characters—Fur short, close, rough, and almost spiny. 
General colour bright rufous, grizzled on the head, and 
darkening posteriorly, where it is ornamented with a series of 
broad transverse white bands; a white stripe over each eye; 
under-parts clear pale yellow. Ears pointed, and clothed 
