PLATE V1I.— Continued. 
intima,” the outline of the presumed “central capsule,” the pro- 
blematic opaque, colourless, shiny, elliptic body, the ordinary 
velo oil-globules, and the outer linear and pointed spines; these 
atter as equally distributed over the connecting isthmus as over 
the periphery of each of the conjugated individuals; the speci- 
men being “killed,” pseudopodia, as a matter of course, have 
completely disappeared. 
8.—A very small, presumably a young, example of the same in the living 
condition, showing the minute inner central body within the granular 
general body-mass, the peripheral hyaline and glassy spines, and the 
ven pellucid, extremely slender, filiform, straight, and long pseudo- 
podia. 
9.—A large example of the ‘ Diplophrys-like”’ organism, having enclosed 
itself in the middle of an aggregation of frustules of heterogeneous 
minute diatoms and fragments, along with small fibrous and nonde- 
script shreds, and showing its nearly orbicular, faintly granular body 
with a large oil-like globule therein. 
All the figures x 400. 
PLATE VII. 
10.—A small example of the “ Diplophrys-like” organism (considerably more 
minute than fig. 9), the surrounding aggregation of foreign bodies 
containing no diatomaceous elements, but made up of rather short, 
somewhat hyaline, arenaceous and nondescript granules. 
11.—Plagiophrys spherica (Clap. et Lachm.) (?), living, seen in profile, and 
showing its little tree-like cluster of slender-branched pseudopodia, 
emanating from a hollow or depression at one side, which latter 
presents a number of more or less evident alternate creases and 
rounded prominences, seemingly due to the mode of infolding at this 
place of the closely-investing outer integument or “test.” The 
specimen has incepted an example of Cosmarium cucurbita. 
12.—Another example of the same treated with acetic acid, showing the 
* nucleus ” ejected, the body-mass retracted from the outer integu- 
ment, which at the frontal or anterior, formerly infolded, portion, 
presents a generally broadly conical shape, but characterised by 
annular ridges, giving a zigzag lateral outline. 
13.—An example of the same after treatment in the carmine fluid, showing 
the elliptic “nucleus” highly dyed, the body-mass not retracted, 
and the frontal or anterior portion of the integument (or “test ”), 
formerly infolded, now pushed outwards in a broadly conical shape, 
with a straight outline. 
14.—An example of another form, probably provisionally referable to the 
same species, viewed “dorsally”? and presenting a dark, very shiny 
exterior, and very long, branched, and sometimes inosculating granu- 
liferous pseudopodia. 
15.—Outline of the contracted and crumpled appearance at once assumed 
by an example of the foregoing on being treated with the carmine 
fluid. 
16.—Balloon-shaped figure, quickly assumed by an example of the same 
under the action of the carmine fluid, the creases and wrinkles (indi- 
cated by previous figures) being obliterated; the elliptic “ nucleus ” 
highly dyed, and the sarcode-body retracted from the integument 
and partially ejected through the anterior opening in the formerly 
infolded, now prolonged, truncate, neck-like portion caused by its 
evagination. 
All the figures x 400. 
