OF THE BEAVER AND OF SOME SQUIRRELS. 1185 



The hind foot has claws like those of the fore foot, and the 

 four lobes of the plantar pad are similarly large and long, 

 especially the internal ; and both the internal and the external 

 lobes are provided with a small supplementarj^ lobe, making the 

 entire plantar pad appear to be composed of six lobes, four large 

 and two small. The metatarsal pads are also large. The internal 

 starting close behind the corresponding lobe of the plantar pad 

 and extending backwards to within a short distance of the hairy 

 heel, occupies about one-third of the naked metatarsal area. 

 The external metatarsal pad, about equal in area to the median 

 lobe of the plantar pad, extends obliquely inwards and backwards 

 from a point close behind the plantar pad, its posterior end over- 

 lapping the anterior end of the internal metatarsal pad. (Text- 

 fig. 45, E.) 



The feet of Ccdlosciurus notatus and of Tomeutes viitaius are 

 practically alike and agree in all essential respects with those of 

 G. prevost'i, and judging from dried skins Ccdlosciurus finlaysoni, 

 G. castaneoventris, and Tomeutes hippurujS have feet of essentially 

 the same type. (Text-fig. 45, A, B, C.) 



In Ratiifa indica the fore foot has the pads exceedingly large. 

 The three plantar pads are in contact with each other and with 

 the two carpal pads. The latter meet posteriorly, and the five 

 pads form a continuous lobate cushion surrounding a depressed 

 area of soft but coarsely granular integument. The inner 

 carpal, with which the digital pad of the pollex is indistinguish- 

 ably fused, is as large as the three lobes of the plantar pad taken 

 together. It forms a large projection on the inner side of the 

 foot behind the second digit, and constitutes a grasping organ with 

 the tips of the four digits, which close obliquely upon it. (Text- 

 fig. 46, A.) In the hind foot development of the pads reaches its 

 maximum, as is the case in the foi-e foot. The four lobes of the 

 plantar pad are wide, long, and in contact, and form a continuous 

 cushion, with undulating distal margin extending from the inner 

 to the outer edge of the foot. The outer metatarsal pad, moreover, 

 is elongated and in contact at its distal end with the outer lobe 

 of the plantar pad ; and the inner metatarsal pad is similarly 

 continent with the inner lobe of the plantar pad, the two together 

 forming a long cushion about half the width of the metatarsal 

 area, and reaching back to the hairy heel. The soft integument 

 of the sole surrounded by the plantar and metatarsal pads and 

 the outer half of the sole as far back as the proximal end of the 

 inner metatarsal pad is granular, the granules being coarser 

 distally behind the plantar pad than pi'oximally towards the 

 heel, which is covered with hair up to the proximal end of the 

 inner metatarsal pad. (Text-fig. 46, B.) 



R. hicolor and R. 'macrou.rus have feet like those of R. indica, 

 and the claws of the genus Ratufa are short, abruptly curved, 

 and shai'ply pointed like those of Gallosciurtcs. The feet of 

 Ratufa, indeed, may almost be described as an exaggeration 

 of the type seen in Gallosciurus by the expansion and fusion 

 of the pads. 



