466 PROF, ST.-GEORGE MIVART ON THE ZLUROIDEA. [June 6, 
The greatest total lengths of the palate bear proportions to 
the spine (atlas to sacrum as 100) of 17-9 (Herpestes) and 17°5 
(Crossarchus). Its least proportion is 9:6 (Felis), the largest pro- 
portion I have found in Felis being 14:7. The shortest Viverrine 
palates, thus estimated, are 10-9 (Viverricula) and 11°5 (Viverra, 
Galidia, and Cryptoprocta). 
Compared with the cranial length at 100, the greatest proportions 
the palate attains are 62°8 (Bdeogale) and 61:6 (Herpestes); its 
least is 43°4 (Felis). Compared with the base at 100, its greatest 
relative lengths are 290°9 (Suricata), 272°7 (Felis), and 268°2 (dre- 
togale) ; its smallest proportions in length are 153°8 (Felis) and 
150°0 (Galidia). 
The greatest breadths of the palate, compared with the spine at 
100, are 12°8 (Crocuta), 11:4 (Felis), and 10:0 (Suricata). Its 
least relative dimensions are 3°9 (Eupleres), 5°4 (OCynogale), and 5°9 
(Viverra civetta). Its smallest proportion in Felis is 78. 
The greatest proportional breadths of the palate, compared with 
the total cranial length at 100, are 49°3 (Crocuta), 46°9 (Felis), and 
36:8 (Suricata) ; its least proportions are 22°7 (Arctogale) and 16°8 
(Eupleres). The greatest proportions of its breadth compared with 
the base at 100 are 213°4 (Crocuta) and 200°0 (Felis) ; its smallest 
is 100-0 (Hemigalidia, Arctictis, and Poiana). 
The projection of the palate backwards behind the upper molars 
compared with the total cranial length at 100 is greatest in Proteles 
(20:8), Arctictis (18°7), and Suricata (16°9). I have found its 
maximum in the Cats to be 11°9, and its minimum 4°6. In Genetta 
itis 5°0. It is least in Hyena brunnea (4°5) and Nandinia (2°6). 
The interorbital breadth may be in a proportion as large as 7°3 
(Hemigalidia), and as small as 2°5 (Genetta), compared with the 
spine at 100. Compared with the total cranial length at 100, it 
ranges from 27°5 (Galidia) down to 8°7 (Genetta). 
The postorbital breadth similarly ranges from 10-0 (Felis) to 3:0 
(Viverra), and from 45:0 (Felis) to 12°2 (Cynogale) respectively. 
The orbits are rarely enclosed by bone, as sometimes in Felis, 
Herpestes, Cynictis, Suricata, and almost in Rhinogale. The post- 
orbital processes, on the other hand, may be almost or quite obso- 
lete, as in Cynogale and Arctictis. 
Except in Proteles and the above mentioned Viverrine genera, 
in which the orbits may be enclosed by bone, the postorbital pro- 
cesses of the frontal are never so long in the Viverride as they 
generally are in the Felide. 
The face is generally shorter as compared with the cranium in the 
Felide than in the Viverride. 
The auditory bulla is always an ossified convex prominence except 
in Nandinia, where it is cartilaginous. It may be quite smooth and 
unconstricted, showing no external sign of internal division, as in 
the Felide. There may be no internal septum, as in Crocuta. 
There may nevertheless be an almost complete internal septum 
dividing each bulla into two chambers, with only a minute opening 
on the septum, as also in the Felide and Viverring. The septum 
