308 Mr. R. 1. Pocock on the Tooth-change, 
In the mandible of the smaller skull the deciduous incisors 
are shed, those of the permanent set being in place, although 
the outer teeth are shorter than the rest. The canines and 
premolars (pm, pms) of the deciduous set are fully functional, 
but the alveolus of the molar (carnassial) is open, the poste- 
rior cusp projecting just above the bone. 
In the second and older skull all the incisors are fully 
erupted, the deciduous canines are shed, and the permanent 
canines half up. The cheek-teeth on one side consist of the 
two deciduous premolars and the molar (carnassial), which 
is as high as the deciduous milk-premolar, but, on the other 
side, the first deciduous premolar (pm) has been pushed 
out by the tip of its successor, which is just level with the 
rim of the alveolus. 
In each ramus of the mandible, therefore, the permanent 
teeth become functional approximately in the following 
order :—(1) the two inner incisors; (2) the outer incisor; 
(3) the molar (carnassial) ; (4) the canine; (5) the first 
premolar ; (6) the second premolar. 
The change in the upper and lower jaws closely coincides, © 
allowance being made for the complete absence in the man- 
dibie of a tooth representing the first premolar of the 
maxilla and for the functional correspondence of the second 
and third premolars of the maxilla with the second premolar 
and molar of the mandible. Of the cheek-teeth, the first of 
the permanent set to erupt above and below are the molars, 
and the last to erupt are the teeth immediately preceding 
the permanent carnassials—that is to say, pm® of the maxilla 
and pm, of the mandible of the normal mammalian series. 
The Cranial Characters of F. uncia. 
The main sources of information known to me about the 
skull of F. uncia are the figure and description published by 
Gray *, and derived from a specimen with defective occiput 
and base, which was then, as it is now, the sole example 
available for examination in the collection of the British 
Museum. 
In the Zoological Society’s collection there are two perfect 
skulls of animals from Kashmir. The larger of the two, 
almost in the final stage of tooth-change, is only slightly 
smaller than the adult described by Gray, the total length in 
the latter being 64 inches and the zygomatic width 43 inches, 
whereas in mine the total length is 6 inches, the zygomatic 
width 42, and the basal length 52. 
* P. Z. 8S. 1867, p. 262; Cat. Carn. Mamm. etc. p. 8 (1869). 
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