JOURNAL OF MICROSCOPICAL SCIENCE. 
DESCRIPTION OF PLATE XVII, 
Illustrating Mr. W. Archer’s paper on Rhizopoda. 
Fig. 
1. — Cystophrys Uaecheliana (gen. et sp. nov.), seen in its ordinary con- 
dition, the pseudopodia fully and equally extended; the cells show- 
ing their light-coloured nucleus aud nucleolus, and, occasionally, the 
bluish granular contents showing a somewhat large, reddish one ; 
one of the cells showing self-fission. 
2. — The same, endeavouring (and finally succeeding) to encompass a fibre 
of wool, some of the internal cells seemingly getting thrown off in 
the effort, the delicate sarcode layer becoming stretched along and 
round the extremity of the wool. One or two of the cells show 
self-fission. 
3. — Cystophrys oculea (sp. nov.). 
The outline of the reddish nuclear bodies is hardly sufficiently 
strongly indicated by a sharp dark line, nor is the inner nucleolar black 
dot sufficiently pronounced. It is difficult to execute these details, 
even on a scale of 400 diameters. Iu some of the inner cells will be 
seen double nuclei, presumably indicating progressing self-fission. If 
it were possible to render the very slender pseudopodia by colour- 
less silvery lines, it would be more true to nature, but the figure 
will, it is hoped, enable observers to identify this form. 
4. — Heterophrys myriopoda (gen. et sp. nov.). 
In this figure, by some accident, the marginal region or border lias 
been drawn at the left-hand side of greater depth than at the remain- 
ing three fourths of the circuit ; it ought to be pretty equidistant all 
round. The remark made as to its being focussed down to the ex- 
treme margin here holds especially good ; it will be of course un- 
derstood the outer region interveues between the central chloro- 
phyll-bearing otherwise rather hyaline body and the observer. 
5. — Clathrulina elegans (Cienkowski). 
It is hard to convey the transparent character of the perforate 
skeleton of this pretty creature, combined with the light brownish 
colour proper to fully developed specimens. The pseudopodia are 
rendered somewhat too thick aud pronounced ; they are very deli- 
cate and colourless. 
All the figures X 400. 
