269 
them, a distance more than twice the diameter of the body 
into the water. 
The pseudopodia never seem either to branch or coalesce, 
nor ever fuse in any way with the substance of the invest- 
ment surrounding the central sharply defined ball from 
which they originate. The chlorophyll-granules do not 
obtrude beyond the bounds of the latter, except very rarely 
and very few, and this possibly as the result of accident, 
perhaps a kind of mechanical displacement during an act of 
either inception or of ejection of food, although I have not 
seen any crude food in any of the specimens I met with. Of 
course, an undue pressure on the whole will squeeze it into 
ail indistinguishable mass, the chlorophyll-granules become 
scattered about, and the contour of the inner body quite obli- 
terated ; and yet if the pressure be but comparatively slight 
the creature has the power gradually to recover its form 
and symmetry and project its pseudopodia and expand its 
border almost as before. Those who inspect the figure of this 
form (or, indeed, of the others also) will, of course, understand 
that the drawing is made from a specimen focussed down 
to its equator, as it were, and that the continuation of the 
investing portion intervenes between the inner globe and the 
observer, as well as at the margin (and, of course, behind) ; 
for, when focussed as the figures are drawn, the substance 
of the outer stratum is sufficiently transparent to offer no 
obstacle to the passage of the light, and we are enabled to 
see the body and its radiating pseudopodia as if it were 
absent ; when focussed up more and more the cloudy outer 
substance comes into view, and we see by degrees the fim- 
briated periphery and the pseudopodia revealing themselves. 
The inner globe never shows any ‘nucleus’ nor an enclosed 
or marginal pulsating vacuole, nor have I ever seen more than 
one inner globe in each specimen. This is a comparatively 
dead and inert form. 
This form thus agrees with Raphidiophrys in the inner 
globe possessing a hollow globular stratum of chlorophyll- 
granules, and in the outer stratum, of a different kind of 
sarcode, being endowed with a certain mobility. But this 
latter part of the organization possesses no spicules, a circum- 
stance which, in the opinion of some, might be sufficient to 
place two such forms widely apart ; but there are marine 
Radiolaria without spicules, or indeed any solid parts. The 
fimbriated margin, composed of the linear prolongations of the 
investing sarcode, is absent in Haphidioplinjs virulis, and in 
that form this part of the structure seems capable only of 
sending out longish triangular prolongations, rendering them- 
