PHRYGANELLA PARADOXA. 77 



Test thin, ovoid, truncated inferiorly ; semi-trans- 

 parent, the crown arched, with few extraneous 

 particles adhering; not compressed; the mouth irre- 

 gularly roundish ; the pseudopodia radiating, thin, 

 simple or bifurcated near the more or less pointed 

 extremities. Nucleus single. 



Dimensions : Length 30-40 //, ; breadth about 28 JJL. 



In wet moss from the sluice-wall of an old mill at 

 Baguley, Cheshire. 



This species of Phryganella differs in the form of 

 its test from P. acropodia, being more of the Difflugia 

 type, whilst thin in structure and semi-transparent. 

 The pseudopodia are long and thin. Our Cheshire 

 examples correspond closely with Penard's description, 

 but the pseudopodia, in the few examples met with, 

 were simple, not bifurcate. 



Genus 22. DIFFLUGIELLA Cash, 1904. 



Difflugiella CASH in Jrn. Linn. Soc., Zool. XXIX (1904), 

 p. 224. 



Test ovoid in lateral view, not compressed, com- 

 posed of chitinous transparent membrane, which is 

 flexible (more so in the region of the mouth) ; proto- 

 plasm colourless, granular, nearly filling the cavity, 

 slightly tinged with green from the inception of 

 chlorophyllous food"; the pseudopodia of two kinds, 

 one lobular or digitate, protruding centrally from the 

 mouth of the test, and terminated by a short acute 

 apiculus, the other longer, straight, thin, tapering to 

 a point, and projected laterally from each side. 



This genus was with some hesitation proposed for 

 a minute rhizopod which could not be satisfactorily 

 referred to any previously existing one. It is dis- 

 tinguished from Difflugia by the peculiar apiculate 

 pseudopodia, and by the extremely thin chitinous test, 

 w^hich has no incrustation of any kind. 



