200 PROF. ST.-GEORGE MIVART ON THE ZLUROIDEA. [Feb. 7, 
wanting in a specimen of H. brunnea). vp. * is like the Cats’, save 
that the anterior and posterior external cUSps are nearly equal and 
more nearly approach in size the median external cusp, that the 
internal cusp is much larger and stouter, while the base of the 
antero-external angle of the tooth is not prominent. The antero- 
external fang is much more slender relatively, while the postero- 
external one and that of the internal tubercle are stouter. 72 
differs from that of the Cats in its greater relative vertical and less 
antero-posterior development, and that its small talon seems never 
to be bilobed. Its basal ridge is much more developed within, and 
still more at the hinder part of the tooth. It has two very long roots, 
the anterior one of which is slightly the stouter. 7? differs from 
that of Felis (except that of F. planiceps) in having two roots ; it 
is like =~", only smaller and less powerful. It is vastly more power- 
ful than is == of Felis. "+ is close to (or almost close to) the 
canine ; it is conical, with a basal ridge all round (much marked 
within and behind), and has a cutting-edge extending from the poste- 
rior outer to the antero-inner parts of the tooth. j— is absent. 
pop 18s much larger than FP. but smaller than pike it is conical, but 
laterally compressed, with an antero-posterior cutting-edge, and a 
basal ridge all round it, but especially behind, where it develops a 
second, small tubercle. It is like the Cats’ po» but it is a little 
more vertically developed relatively, and is more quadrate when 
viewed from above. It has two subequal fangs. -; is more canini- 
form ; it differs from the Cats’ in its large basal ridge, and has two 
large roots, the anterior of which is rather the larger. 5; has two 
fangs, the posterior of which is rather the larger; it is like the 
last tooth, save that its talon is larger and bears two tubercles side 
by side. It differs from the Cats’ in its smaller talon and merely 
rudimentary anterior cusp. 7 is like that of the Cats; but the 
cusps are relatively shorter, and there is a talon which bears two 
small cusps; there is also a cusp within the more posterior of the 
two large cusps. 
Comparing the milk-dentition of Hyena with that of the Cats, T 
find that 2 has two roots; it is very like the Cats’ 8, and there- 
fore very unlike 2" of Felis. 2° (the milk sectorial) is very like 
the Cats’ deciduous sectorial; but its inner tubercle is larger rela- 
tively ; it is similarly situated. The deciduous outer incisors do not 
exceed the inner ones nearly so much as in the permanent dentition. 
Da is Just like the Cats’ 5. gis like the Cats’ 5, only larger 
relatively. 2-* is very different from that of the Cats, because it has 
a very large talon-with three small cusps as well, on and inside (and 
side by side with) the hinder principal cusp, half the size of the 
latter ; it is a slight exaggeration of the permanent lower sectorial. 
There is no supracondyloid foramen to the humerus. There is 
