200 PROF. ST.-GEORGE MIVART ON THE ^LTJROIDEA. [Feb. 7, 



wanting in a specimen of H. brunnea). p. * 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. -^ 

 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. — 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, p-^ is absent, 

 p-^ is much larger than -^-, but smaller than -^ ; 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' p-g, but it is a little 

 more vertically developed relatively, and is more quadrate when 

 viewed from above. It has two subequal fangs, p-g 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, p-j 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, jj^ 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 Hycena with that of the Cats, I 

 find that -^ has two roots ; it is very like the Cats' -^, and there- 

 fore very unlike — of Felis. -^ (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. 

 5^ is just like the Cats' g-g. g-g is Hke the Cats' g-^, only larger 

 relatively. -^ 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 



