16 



Art. 5.— Matajiro Yokoyama ; 



examples of the transversa] symmetry he mentions, among others, 

 the occurrence of the giant salamander in Japan and of Menopoma in 

 the United States, of the genus Alligator in China and America, of 

 Ceratodus in Queensland and of Lepidosiren in South America, etc. 

 Of course it is not my object here to reproduce all the details 

 given by Simroth in his book. I only mention them to show 

 how this eminent naturalist was led to assume the movement of 

 the poles from the distribution of recent organisms, just as I have 

 been led by that of the fossils. 



Lastly, it may perhaps be asked: If the poles ever moved, 

 in what position were they during the Japanese Coralline Age? 

 To such a question, I can only say that I have found only enough 

 evidence to suggest the movement of tlie poles and no more. I 

 even doubt if palaeontologists will ever be able to establish the 

 position of the poles in the past b}^ simply studying the fossils. 

 Tlierefore, let it suffice for me to say that during our Coralline 

 Age, the poles were in such a position as to cause the sun to shine 

 on the Sübö Peninsula with about the same intensity as it now 

 shines at least on the Ryukyus or the Bonin Islands. 



