NOTES ON DIATOMS IN 1906. 

 By R. H. Philip. 



THE most interesting gatherings made during the present 

 year are the following : — From brackish ditch, Green 

 Lane, Neuiand, Mastogloia dansei Thw. , and var. 

 elliptica Ag. ; from ditch at Saltend Common, near Hedon, 

 Melosira nummuloides Ag. , at one end nearly pure, and from 

 the other end Melosira jurgensii Ag. , almost equally pure ; 



1. Mastogloia dansei var. elliptica Ag. 



2. Navicula fontinalis Grun. 



3. Navicula bacilliformis Grun. 



4. Fragilaria-brcvistriata Grun. 



5. Synedra famclica Kutz. 



6. Navicula prorracta Grun. 



7. Pinnularia brcvicostata CI. 



from pond in Boynton Woods, near Bridlington (Y.N.U. 

 excursion), five different species of Slauroueis, S. anceps, 

 S. acuta, S. Legumen, S. Phenicenteron, S. S?nithii ; from 

 stream falling into Little Thornwick Bay, Campy Iodise us 

 Hibernicus Ehr. , and Surirella spiralis Kutz. ; also very 



