143 
point, I may, perhaps, have an opportunity to offer some notes 
on a future occasion relating to certain other rhizopods. 
Regarded, however, in either light, the presence of these 
central structures in each of the conjoined examples in fig. 7 
would seem to go to indicate that they are really two distinct 
individuals mutually “‘ conjugated,” rather than truly only one 
individual becoming two by a self-division. 
The specimen before us (fig. 7) happens to present a fur- 
ther characteristic, which, perhaps, may be worthy of just a 
passing note, for no light can be thrown on its possible sig- 
nificance. I allude to the presence of the rather large, 
opaque, colourless, shiny, somewhat pearly-looking, broadly- 
elliptic body immersed in the sarcode body-mass, and be- 
tween the two conjoined bodies of the “conjugated”’ pair of 
individuals ; this seems homogeneous, and does not seem to 
show any nucleus or wall. It appears, I think, to be a pre- 
cisely similar body to that recorded and figured by Stein, as 
present in examples of his so-called Actinophrys oculata, 
themselves conjoined or conjugated.! Upon this problematic 
body Stein himself seems to be able to throw not any light, 
thinking it, however, an introduced foreign body, and refer- 
ring to Cohn’s remarks on a similar body in A. Eichhornit 
(which see). I should myself hardly be disposed to attribute 
its existence here to a result of the “ zygosis” or “ conjuga- 
tion,” for quite identical bodies occurred in the extra-capsular 
region of unconjugated specimens in the same material; still, 
it might possibly be supposed in their case, too, that such 
may be produced iv some way as a result of conjugation, and 
that, after separation, one of the individuals may have borne 
away with it this peculiar-looking body. I have also some- 
times seen similar-looking bodies in the substance of certain 
other Rhizopoda. Although, then, the significance of this 
structure is so obscure, it seems to be too conspicuous and 
prominent a constituent of the tout ensemble of the present 
examples to be altogether unimportant, but a decision as to 
its nature must be left for further observation. 
Another point presented by the examples shown in my 
figures (figs. 7, 8) relates to the yellow globules appertaining 
to Acanthocystis spinifera. Greeff seems to suggest the pro- 
bable identity or homology of these with the green chloro- 
phyll-granules of A. turfacea, and of those again with “yellow 
cells.” I believe, however, they are here nothing but oil- 
globules. Greeff depicts them as all of one light yellow 
1 Stein: ‘ Die Infnsionsthiere auf ihre Entwickelungsgeschichte unter- 
sucht,’ p. 163, t. v, fig. 27, x and x; also Pritchard’s ‘ Infusoria,’ pl. xxiii, 
fig. 25. 
