90 



BRITISH FRESHWATER RHIZOPODA. 



pitted with hemispherical indentations which give the 

 margin a more or less wavy outline, and are carried 

 over the broader surface obliquely at regular distances. 

 Protoplasm as in H. papilio, the nucleus normally 

 situated, usually distinct; pseudopodia few, simple. 



Dimensions : Length 75-100 //, ; breadth of body 

 60 /A ; at mouth 25-30 JJL. 



In bogs amongst Sphagnum and other mosses. 

 Knutsford Moor, Cheshire ; Sychnant Pass, Car- 

 narvonshire. West Yorkshire (6r. S. West}. Capel 

 Curig, N. Wales, frequent (/. Bopldnson}. Aberfoyle 



81 



82 



Fias. 81 AND 82. Hyalo&phenia elegans : 81, from Knutsford Bog, 

 Cheshire, x 280; 82 (drawn by G. S. West), from docket Moss, W. 

 Yorks, x 300. 



and elsewhere in. Scotland (W. Scans). Loch Ness, 

 Scotland (/. Murray}. 



H. elegans is a distinct and easily recognized species, 

 different in the character of the neck and the pitted 

 test from any of its allies. The transparency and 

 graceful outline of the test makes it a beautiful object 

 under the microscope. It becomes yellowish, turning 

 to pale brown with age. 



Examples gathered in North Wales had a more even 

 outline, whilst the hemispherical pits covering the broad 

 surface of the test were fewer than in those from 

 Cheshire (fig. 81), which were the most perfect we 

 have seen. In lateral view, however, there was little 

 difference to be seen. 



