IN NORTHUMBERLAND AND DURHAM, 303 



Burn ; also in a pool near Hedworth, and in a stone trough in 

 Seaham Hall Avenue. 



Batrachospbrmum atrum, Harv. 



In the stells at Sedgefield (Morden Carr). 



Draparnaldia glomerata, Ag. 

 Very common, 



Draparnaldia plumosa. Ag. 



In a spring on bank side near Ryton Station, September, 

 1860. 



Draparnaldia tenuis, Ag. 

 South wick, near Sunderland. 



Draparnaldia cruciata, Hicks. 



In a moss-pool south of Crag Lake, May, 1860, 



Ch-etophora endivi^folia, Ag. 



Pools near Hedworth and Brockley Whins ; Smalesmouth, 

 Seaham Hall Avenue, Morden Carr. 



Ch^tophora elegans, Ag. 



Common on decaying plants, shells, &c. 



Zygnema nitidum, Ag. 

 Common. 



Zygnema quininum, Ag. 

 Common. 



Tyndaridea. 



Many species (so called) of this and the preceding genus, as 

 well as of Vesiculifera, are common, but the majority of those 

 given by Hassall appear to be founded on totally insufficient 

 characters. 



