NBBELA TINCTA. 101 



or circular plates of variable size (Avhicli are in contact 

 at the edges but never overlap), the inflated sides 

 narrowing suddenly into a short neck; the mouth 

 slightly arcuate, or oval when viewed transversely. 

 Plasma not differing from that of the preceding species ; 

 the nucleus normally situated ; pseudopodia three to 

 six, simple, blunt, generally very mobile. 



Dimensions : Length 85-90 fi ; sometimes attaining 

 110 ju,, or more. 



In Sfhagnum, abundant ; also on the mossy sides of 

 peat drains in turbaries amongst tufts of Dicranella 



Fi8. 90. — Neiela tincta. Chat Moss, Lancashire, x 300. 



cerviculata. Frequent in Spliagnum from Capel Curig 

 (Moel Siabod, etc.), IST. Wales; and Co. Wicklow, 

 Ireland (/. HopJcinson) . Loch Ness {D. J. Scourfield), 

 and Midlothian {W. Evans), Scotland. 



Leidy, probably misled by imperfect examples 

 whose tests presented the appearance of "a pale 

 yellow, transparent, structureless, chitinoid mem- 

 brane," referred this organism to the genus Hyalo- 

 sphenia. Typical British examples show a test which 

 is very distinctly tesselated, with circular or oval 

 plates (fig. 91) as in Nehela coUaris, their edges in 

 contact but not overlapping, whilst not infrequently, 

 in addition to these plates and mingled with them, 

 there are quadrangular plates, and rods (see fig. 92), 



