32 BRITISH FRESHWATER RHIZOPODA. 



defined and projecting beyond the outer aperture ; 

 plasma and pseudopodia normal ; nuclei one to twenty 

 in number. 



Diameter 90-100 p, (probably). 



Habitat. Mosses. 



ENGLAND. Westmorland (Brown) . 

 IRELAND. Clare Island, Mayo (Penard). 



Unfortunately Greeff gives no dimensions or illus- 

 trations of this species, but it is apparently only 

 by the smaller number of nuclei which it possesses that 

 it is distinguishable from D. fragilis Penard, the latter 

 having from 30 to 40, each about 6/x in diameter. 

 The tests of the two species being similar, it is only 

 possible to distinguish between them when living 

 individuals are under observation. 



The individual found by Penard on Clare Island 

 was only doubtfully identified, but it was not D. 

 fragilis ; no drawing was made of it, so it is not 

 possible to give an illustration in this work. 



2. Diplochlamys timida Penard. 

 (Plate LX, fig. 6, and figs. 170 and 171 in text.) 



Diplochlamys timida 



PENARD in Arch. Protist. XVII, 2 (1909), pp. 275-279, 7 figs. ; in 

 Brit. Antarct. Exped. I, Biol. 6 (1911), p. 232; in Deux exped. 

 Antarct. fran^aises (1911), pp. 4, 7-8. 



HEINIS in Mem. Soc. Neuchatel, V (1914), pp. 676, 683, 694, 696. 

 EDMONDSON in Ward & Whittle's Fresh-water Biology (1918), p. 221, 



f . 284. 

 Diplophrys (male pro Diplochlamys) timida 



BROWN in Ann. Scott. Nat. Hist. 1911, pp. 230, 231 ; in Scott. Natur. 

 1913, p. 209. 



Test small, sub-spherical, semitransparent, greyish- 

 yellow in colour, becoming darker with age; outer 

 envelope thickly encrusted with amorphous particles 

 of organic origin ; inner membrane hyaline, supple, 

 deeply invaginated around the aperture ; plasma clear, 

 bluish-grey in colour, containing food-particles and 

 granules of excretion ; nucleus single, containing a 



