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it sometimes may look as if the diatom projected right through 
and through the body, and as if it pushed up and away along 
with it, at opposite ends, a few of the outer vesicles, carrying 
them scattered on its surface, thus giving such an example a 
very singular appearance. 
I have not been able to see the inception of food, but have 
noticed the ejection of crude, presumably indigestible, matter, 
such as, seemingly, the skin or wall of some protococcoid. This 
is effected by a somewhat sudden effort, looking, at first 
sight, like a breaking into two of the rhizopod itself, but it 
is only the turning out or eversion of the undigested rejecta- 
menta. However, during this act of what may be called 
defecation some of the colouring granules are likewise simul- 
taneously ejected, and a few of the outer vesicles thrown off ; 
this, of course, accidentally and seemingly caused by the 
mechanical action involved in the effort. The creature does 
not seem to suffer by this loss of a portion of its substance, 
it shortly reassumes its orbicular figure and shows no change 
except the certain small amount of loss of colour, just as in the 
example subjected to artificial pressure before described. 
Of all actinophryan or “ radiolarian ” forms that I have 
seen this appears to me to possess the greatest amount of 
locomotive power — next to it in this respect, perhaps, comes 
the form I have previously mentioned under the name of 
Ilctcrophrys Fockii. The present form often makes very 
decided changes of place as it is viewed under a quarter- 
inch. It seems occasionally to be able to roll along with a 
certain slow and undecided but perceptible amount of vigour, 
as if its slender but hardly evident pseudopodia performed 
the part of ambulatory organs ; but at other times no motion 
or change of place at all is noticeable. 
As in other rhizopods which present a distinct coloration, 
it must be presumed that the intensity of the reddish or garnet 
colour, inclining to purple, characteristic of this species, is 
due to condition of nutrition. Examples presenting them- 
selves in gatherings kept for some time in the house are paler 
in colour than those met with in fresh and healthy gatherings 
which abound with other forms of animal and vegetable life. 
Still, though paler and fewer, the reddish granules seem 
never to be wholly absent. Such examples, too, besides the 
paler colour, likewise show the outer vesicles, not only fewer, 
but seemingly more or less diminished in size or shrivelled 
and collapsed ; but I have not seen specimens from which 
they were absent, though they may have lost their spherical 
bubble-like appearance. 
I regret to say I have never met with examples showing 
