140 



BRITISH FEESHWATEJB liHIZOPODA. 



Dujardin, in his description of Gromia fiuvialis, 

 gives no information as to the character of the nucleus 

 or of the aperture, and Leidy (' Freshw. Rhiz. N. 



Fig. 157. — Allogromia flrmalis. x 200. (After Dujardin.) 



Amer. '), in a much more complete account of his 

 0. terricola, accompanied by excellent drawings, also 

 omits (owing to lack of specimens) all details of the 



rr^vS^ 



7 /r^r i '[ ) 



Pig. 158. — AUogromia fiuvialis, with the pseudopodia fully and only 

 partially extended, x J 20. (After Leidy, as Gromia terricola, but 

 reduced to three fifths the size of his figures.) 



aperture, but he notes the presence of a single nucleus 

 which he describes as large, pale, and granular ; the 

 occurrence of numerous " oil globules " in the plasma 

 is also noted by him. 



In the only drawing by either of the above authors 



