TUPAUDE 617 
existing families of the second section are known ina, fossil condition, 
although it is suggested that the extinct Leptictide includes allied 
types. 
Family TUPAUD.E. 
Skull with comparatively large brain-case, orbit surrounded by 
bone, well-developed zygomatic arch, perforated jugal, and a tympanic 
Pia. 288.—The Pentailed Tree-Shrew (Ptilocercus low’). From Gray, Proc. Zool. Soc. 1848. 
$ natural size. 
bulla. Upper molar broad, with cusps arranged ina W. Pubic 
symphysis long; radius and ulna, and tibia and fibula separate ; 
metatarsus only slightly longer than tarsus. Usually a short ecxecum. 
Habits arboreal and diurnal. Confined to the Oriental region. 
Tupaiu.—Dentition : i 2, ¢ 4, p 8, m 35 total 38. Feet naked 
beneath, the sole furnished with projecting pads; claws moderate, 
curved, and sharp; head pointed; ears rounded; tail bushy, 
distichous, with short hair below. The Tree-Shrews, of which there 
are some nine species, are found in India, Burma, the Malay 
Peninsula, the Nicobars, Sumatra, Java, and Borneo. The species 
closely resemble one another, differing chiefly in size and in the 
1 Rafiles, Trans, Linn. Soc. vol, xiii, p. 256 (1822). 
