528 DR. J. E. GRAY ON THE VIVERRID&. [Noy. 8, 
sous le nom commun de Paradorurus typus, indiquent au moins 
quatre espéces, et que dans chaqu’une d’elles on peut aisément di- 
stinguer un degré tranchant et différent de disposition carnassitre.”— 
Ann. Sci. Nat. viii. 275, 1837. 
The development of the auditory bulla is variable in the genera 
and species. In Paguma, Paradoxurus, and Arctogale the bulla is 
large, ventricose, slightly keeled along the lower edge, with a trian- 
gular end. In Nandinia it is very small, not inflated, and scarcely 
raised. It varies in form in the different species of Paradoxurus, 
being smallest in P. bondar. 
The hinder part of the palate of the skull also affords good cha- 
racters, thus :— 
1. The hinder opening of the palate is wide, and nearly in a line 
with the hinder edge ofthe last grinder, in Paradoxurus and Nan- 
dinia. 
2. The hinder opening of the palate is wide, and further back 
than the hinder edge of the last grinder, in Paguma and Arctictis. 
3. The hinder opening of the palate is narrow, at the end of a 
narrow depressed tube, and considerably further back than the hinder 
edge of the last grinder, in Arctogale. 
The specimens which are in the British Museum Collection may 
be divided and arranged thus, from what has been called the ‘ most 
carnivorous’’ to the “‘most omnivorous” form of teeth. 
1. The flesh-tooth very narrow, with a small internal process on the 
front edge. Nandinia binotata. 
2. The flesh-tooth rather narrow, with a rather small internal lobe 
on the front edge. Paradoxurus bondar. 
3. The flesh-tooth rather wider, with a moderate-sized internal lobe 
on the front edge; teeth moderate. P. crossii, P. nigrifrons, 
and P. zeylanicus. 
4. The flesh-tooth triangular, broad, massive, with a large internal 
lobe occupying a great part of the inner side. 
a. The teeth elongate, large, massive. Paradoxurus mu- 
sanga, P. philippensis, P. macrodus, and Paguma leuco- 
mystax. 
4. The teeth shorter and broader, moderate or small. Pa- 
guma grayi, P. larvata, and Arctogale trivirgata. 
They may be arranged, according to the form of the adult skull, 
thus :— 
1. The brain-case wide in front, scarcely constricted. Orbit indi- 
stinctly marked. Nose broad. Paguma larvata and P. leu- 
comystax. 
2. The brain-case wide in front, and distinctly constricted. Nose 
rather elongate. 
