82 BRITISH FRESHWATER RHIZOPODA. 



part, or sometimes with- one also in the centre of the 

 crown ; the sides converging gradually in straight 

 lines from the crown downwards to the slightly-con- 

 vex mouth. In narrow lateral view elongate-pyri- 

 form, the mouth forming a shallow notch ; in dorsal or 

 transverse view narrowly elliptic. The plasma often 

 crowded with bright green chlorophyllous particles, 

 with oil-like globules large and small, and much granular 

 matter ; attached to the interior of the test at the sides 

 and on the crown with threads or bands of ectoplasm. 



FIG. 79. Hyalosphenia papilio. x about 350. 



The nucleus large, its position usually indicated by a 

 pale space in the upper part of the body, but obscured 

 more or less by the contents of the plasma ; one or 

 more vacuoles usually visible in the anterior region. 

 Pseudopodia digitate, colourless, from two to six, 

 simple, blunt. 



Dimensions : Length 110-140 /A. 



In swampy places amongst Sphagnum ; Knutsford 

 Moor, Cheshire, associated with H. elegans Leidy, and 

 other species. On the moors about Whit worth and 

 Rawtenstall, Lancashire (/. E. Lord). Abundant in 

 the Capel Curig district, N. Wales (/. Hopldnson\. 

 Pentland Hills and Midlothian, Scotland (W.. Evans). 



