350 DR. ST. G. MIVART ON THE ARCTOIDEA. [Apr, 21, 



most Viverrines, being slightly exceeded by that of Genetta, Herpes- 

 tes, Cynictis, Hemigalidia, and most of all by Cynogale, where it 

 reaches 29-5. 



The palate is relatively 24' 1, which is more than double the 

 average of the Feline palate's length, and much more than that of 

 any Viverrine, the largest of which (i?e?75es^e«) is but l/'Q. That 

 of the Dingo is 13-8. 



The relative breadth of the palate is 6*5, which is less than that of 

 the Dingo (/'O) or of any Cat, and is hardly more than half that of 

 CrociUa, while in Huricata it is 10-0. It is a little wider than that 

 of Viverra or Arciictis, while that of Eupleres is only 3'9. 



If we estimate the length from the basion ' to the anterior edge 

 of the premaxilla at 100, the length of the palate is 85*4, which 

 greatly exceeds that of any J^lluroid, where it ranges from 43"4 (some 

 Cats) to 61 or 62 (some Herpestes, Crossarchus, and Bdeogale). In 

 the Dingo it is 54' 7. 



The l^readth of the palate thus estimated is 23'3, while in the 

 non-fehne ^lupoids it varies from 16'8 {Eupleres) and 18*4 {Jrc- 

 tictis) to 49-3 {Crocuta). In the Cats it varies from 39-1 to 46-9, 

 and in the Dingo it is 27' 6, just what it is in Viverra. 



The greatest breadth of the zygomata is 71 '8, which exceeds that 

 of the non-feline ^Eluroids except the Hysenas, where it may be 83"4. 

 In the Cats it may he 89'3. In the Dingo it is 6r6. 



The greatest breadth of the brain-case is 45' 6. In the J^luroids 

 it ranges from 27 {Hycena brunned) to 50'8 (Suricata) and 54'5 

 (some Cats). In the Dingo it is 34-9. 



The narrowest interorbital or postoibital breadth is 24 '2. In the 

 iEluroids it may be only 15-6 (Viverricula) and 14'0 (Ci/nogale), or 

 it may be 26-3 (Suricata) or 27-5 {Galidia). It is 22-0 in the 

 Dingo. 



The length, thus estimated, of the fourth upper premolar is 7'7. 

 In the ^luroids it varies from 4*9 {Arctogale) to 16"4 {Crocuta). 

 In Viverra it is 11 '1, and in the Dingo it is 10'3. 



The length of the first upper true molar is 8' 7. In the ^luroids 

 it varies from 1'3 {Crocuta) to 5-6 {Uemigalea). In Viverra it is 

 52, and in the Dingo it is 6'9. 



The breadth of the same tooth is also 8*7, while in the .^Eluroids 

 it ranges from 1"7 {Crocuta) to 10"5 {Suricata). In Viverra it is 

 9 7, and in the Dingo it is 9"4. 



The relative length of the second upper true molar is 5'8. In the 

 iEluroids it may be only r2 as in Genetta, or it may reach 5-2 in 

 Cynogale. In Viverra it is 2 9, and in the Dingo it is 3'1. 



The proportion borne by the pelvic limb (femur, tibia, and pes) to 

 the entire pectoral limb taken at 100, is 123*1. In the non-feline 

 iEluroids it ranges from 94'4 {Crocuta) to 136"4 {Viverricula). In 

 the Cats it may be 1 13'1 or 136-4 (the Eyra), the average being 

 1 19'4. In Viverra it is 127'9, and in the Dingo it is 1146. 



Compared with other Arctoids, Procyon has the relatively longest 



' /. e. front margin of foramen magnum. 



