190 Catalogue of Mammalia inhabiting [No. 171. 



to that observed in Nycticebus tardigradus ; though in Tupaia ferruginea 

 the fringes of the margin only are free, the rest being attached to the 

 tongue, but easily detached by a knife. The lateral raised lines of the 

 palms and soles, the posterior part of the first phalanges, and the third 

 phalanx (second of the thumbs,) which is widened into a small soft disk, 

 in fact all the points which rest upon the ground, are studded with little 

 transversely curved ridges or duplicatures, similar to those observed 

 under the toes, of some of the Geckotida, which fully account for the 

 precision, the ' applomb/ with which these animals perform the astound- 

 ing leaps from below, barely touching with the soles the point d'appui 

 above. In a cage, the Tupai will continue for hours vaulting from 

 below, back downwards, poise itself for an instant, continuing back 

 downwards under the horizontal roof, and regain the point of starting, 

 and thus describe a circle — the diameter of which may be three to four 

 times the length of the animal, — in far shorter time than is required for 

 the description. In a young male, measuring from the nose to the root 

 of the tail seven and three-fourth inches, the tail six and a half inches, 

 the dimensions of the intestinal canal were : 



Small Intestines, 3 feet 4£ inch. ; diameter f inch. 



Large ditto, „ 3f „ „ i „ 



Caecum, „ Of „ „ I „ 



Costse vera? : 8 pairs ; spuria? : 5 pairs =13 pairs. 

 This species* is infested with a Tick of the following description : 

 Ixodes Tupaia. Body suboval, shining dark-green olive; scaly plate, 

 palpi casing the pointed sucker, and the legs : pale reddish-brown. 

 Length, when swollen, three-eighth inch. 



Gen. — Gymnura, Raffles. 



Gymnura Rafflesii, Vigors and Horsfield. 

 Syn. — Viverra gymnura, Raffles. 



"Tikus ambang bulan," Raffles. 

 Hab. — Malacca. 



Sumatra, Singapore. 

 In a district not distant from Malacca, the animal is said to be numer- 

 ous, though not to be seen in other localities. 



* Single light coloured individuals occur with the back, limbs and abdomen grey- 

 ish, whitish, or isabella. 



