BY W. R. COLLEDGE. 91 



^1 thirty years by Surgeon Gunson Thorpe, who also dis- 

 -oovered the male. It does not appear to have been noticed 

 anywhere but in these two localities, and contrary to the 

 usual wide distribution of rotifers, I have only caught 

 them in two pools for a very limited time in the year. At 

 the request of F. Rousselet — the great authority on these 

 microscopic fauna — I forwarded a batch, and some of these 

 were shown, for the first time to a London audience, and 

 specimens supplied to the museums of the Quecket Club 

 .and the Royal Society. 



