SOME ROTIFERA FROM SPITSBERGEN. 



323 



brought into the new genus, and Milne's species was dropped 

 for the time. 



I have occasionally found isolated examples which had only 

 two teeth on each ramus, and which strongly resembled the 

 familiar Hahrotrocha constricta in other respects, differing only 



Fig. 4. — Pleuretra Brycei (Webei"), 

 var. Dorsal view, feeding posi- 

 tion. X 500. 



Fig. 5. — Hahrotrocha Milnei,nora. 

 nov. Dorsal view, feeding 

 position. X 500. 



in less important and not very obvious details, and I have felt 

 no doubt that Milne's species was an absolutely valid form. I 

 propose to name it after its discoverer, who was, I believe, the 

 first zoologist in Britain to give attention to moss- dwelling 

 Rotifera and by his earlier papers led the way to a very notable 



