1882.] PROF. ST. -GEORGE MIVART ON THE iELUROIDEA. 147 



hinder than its anterior margin which projects most outwards. The 

 carotid artery passes through a distinct canal between the bulla and 

 basisphenoid, the hinder end of which appears as a conspicuous fora- 

 men situated a little in front of the middle of the inner border of 

 the auditory bulla. 



The orbit is never enclosed by bone ; uor is the mastoid at all 

 prominent. The lower margin of the hinder part of the mandible 

 is very concave. The angle of the mandible is long, slender, and 

 backwardly projecting ; its coronoid process is not very high or 



backwardly projecting compared with that of Felis. There is a p-2 

 and an ^^. There is also a -^— and an — ^. jj-^ is of large size. 

 — has a well-developed internal tubercle. The tongue is devoid of 



horny papillae or of any patch of conspicuously enlarged papillae on 

 the anterior part of its dorsum. There is a small conical csecum. 

 There is a pair of anal glands. There is also a pair of medianly- 

 adjoining scent- glands placed between the penis and testes, or in 

 the analogous position in the female. Their secretion escapes by a 

 number of minute orifices into a large sac, the external aperture of 

 which appears as an autero-posteriorly extended slit simulating a 

 large vaginal aperture. 



The genus Viverra differs from all the Felidce in that 



(1) The ungual phalanges are less arched, and the bony lamina 



for sheltering the base of the claw is relatively less deep. 



(2) The claws are less arched and less perfectly retractile. 



(3) The auditory bulla, being ossified, shows external signs of its 



complete internal division into two chambers. 



(4) There is a conspicuous carotid foramen on the inner side of 



the bulla, which is most prominent posteriorly. 



(5) The palatine foramina are situated on the anterior half of the 

 palate. 



(6) There is a ^-^ and also an ^^. 



(7) ^'^ is largely developed. 



(8) jj-^ has a distinct talon. 



(9) The ears are not very long, erect, pointed, or tufted. 



(10) There are no horny, sharp-pointed, conical papillae on the 



dorsum of the tongue. 



(11) The hippocampal gyrus is completely separated off from the 



lateral gyrus by the continuation of the calloso-marginal 

 sulcus forwards to the crucial sulcus. 



(12) The coronoid process of the mandible is less lofty relatively and 



less backwardly produced. 



(13) The proportional length of the limbs to the body is shorter 



than even in Felis eyra. 



(14) The muzzle is longer in proportion to the cranium. 

 The genus Viverra also differs from the Felidce in that 



(1.5) There is a distinct hallux with a claw. 

 (16) There is an ahsphenoid canal. 



10* 



