182 



MR. R. I. POCOCK ON THE EXTERNAL CHARACTERS 



surrounded above and behind by a thickening of the integument. 

 The siipratragus {^plica p^^incijudis) is a simple oblique ridge, the 

 tragus, aniitragus, and ofchei* inferior ridges are hardly apparent 

 and there is no trace of the hitrsa (text-fig. 14, D). In Gulo the 

 ear is quite normally developed, tlie pinna standing away from 

 the head as a mobile lamina,. Tlie cavity of the ear is larger than 

 in Mellivora, the supratragus is a larger ridge with a semiglobular 

 thickening, the tragus and antitragus and the normal lidges in- 

 ternal to them are well denned, and the bursa is well developed, 

 its posterior wall consisting of a semioval lamina arising behind 

 the margin of the pinna (text-fig. 14, A, 0). 



Ths Feet. 



The fore foot of Mellivora is provided with long, powerful, 

 blunt fossorial claws The digits are short and unevenly spaced, 



Text-fifjure 15. 



A. Lower side of right hind foot of Mellivora. 



B. Lower side of rig-lit fore foot of the same. 



Xi. 



the distance between 1 and 2 being considerably greater than 

 the distances between the others. Digits 2, 3, and 4 are rather 

 tightly tied together by webbing, which extends more than half- 

 way along the digital pads. Digit 5 has more freedom of 

 movement. The plantar pad is a large, irregularly semicircular 

 mass, with its four elements ill defined. It is followed by two 

 carpal pads sepai^ated from it by a deep groove. The external 

 carpal pad is a large mass ; the internal is much smaller and 



