THE GROWTH OF GROUPS 



99 



insignificant features are constant in immense numbers of 

 animals, for so they are often found to be. 



The skull of the sport is therefore unlike that of either 

 species, but of the two it is more like Gunomys, from which 

 no doubt it was derived. Unfortunately we cannot 

 speak of the skull type of the sports, since only one skull 

 was examined. The peculiar coat colour and the large 

 feet were present in each of the three available individuals, 

 and there is little doubt that the skull type, if examined in 



B. nemorivaga. 



G. varius. 



the three, would also have been found constant, as in the 

 case of the group at Maung Khyine Street. 



The two young rats belonging to the litter of five 

 were kept in captivity in Rangoon in order that they 

 might grow up. Unfortunately they met with an accident, 

 so that their measurements in maturity were not obtained. 

 It was of course important to compare their adult foot 

 length with that of the other mature specimen obtained. 

 There is, however, little doubt that they were of the same 

 lineage as this other. The disproportionate size of their 



