﻿12 ARKIV FÖR ZOOLOGI. BAND 4. NIO 15. 



than the adult.^ If this should indicate that the ancestors 

 of C. ursinus should have had a white mantle which now is 

 löst and tlius this species is the product of reversion it must 

 be observed that in another species there is no such sugges- 

 tion of a »retrograde development». In C. vellerosus the 

 young is said to be »similar in coloration to the adults.^ In 

 the latter case it may thus be assumed that the white mar- 

 kings are, and have been solely of ornamental value. 



* But so it is in G. ab. caudatus too. 



* FORBES 1. c. p. 95. 



