VII.] 



SPECIES AND SPACE. 



163 



The close connection of South America and Australia 

 is demonstrated (on the Darwinian theory), not only from 

 the marsupial fauna of both, but also from the frogs and 

 toads which respectively inhabit those regions. A truly 

 remarkable similarity and parallelism exist, however, be- 

 tween certain of the same animals inhabiting Southwest- 

 ern America and Europe. Thus Dr. Giinther has de- 

 scribed 15 a frog from Chili by the name of cacotus, which 

 singularly resembles the European bombinator. 



-</ ^"^r-1 ^ : - 



80LENODON. 



Again of the salmons, two genera from South America, 

 New Zealand, and Australia, are analogous to European 

 salmons. 



In addition to this may be mentioned a quotation from 

 Prof. Dana, given by Mr. Darwin, 16 to the effect that " it is 



15 Proc. Zool. Soc., 1868, p. 482. 



16 " Origin of Species," 5th edit., 1869, p. 454. 



