32 BRITISH FRESHWATER RHIZOPODA. 
defined and projecting beyond the outer aperture; 
plasma and pseudopodia normal; nuclei one to twenty 
in number. 
Diameter 90-100 » (probably). 
Habitat.—Mosses. 
Eneianp.— Westmorland (Brown). 
Inetanp.—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 6m 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 
PrnaRD in Arch. Protist. XVII, 2 (1909), pp. 275-279, 7 figs. ; in 
Brit. Antarct. Exped. I, Biol. 6 (1911), p. 232; in Deux expéd. 
Antarct. francaises (1911), pp. 4, 7-8. 
HEINIs in Mém. Soc. Neuchatel, V (1914), pp. 676, 683, 694, 696. 
Epmonpson 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 
