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makes a slight and momentary contraction, by which the prey is 
forced downward ; but more commonly the sensitive tissue that 
encircles the first neck contracts upon the prey, and keeps it 
from escaping, until the centre of the diaphragm can grasp it, 
which is but the work of a moment, when it passes into the crop 
with a quick, swallowing motion. This cavity commonly holds 
several animalcules ; I have seen a httle Euplotes (an infusorium 
of unwonted vigour and high organisation) engulphed, and 
crawling rapidly about by means of its hooked feet for some 
time, the jaws of the Floscule remaining still, as if despairing 
of dealing with it until its activity ceased, which it did after a 
while. Generally the prey introduced is immediately brought 
to the jaws, which then work upon it, pounding it as it were 
with the points of the teeth. For some time this seems to 
make no impression, but by and by we discern that the surface 
of the animalcule is indented, and that it is growing shapeless ; 
it is then returned to the upper portion of the stomach, where 
digestion appears to go on, as this part of the viscus is of a rich 
green hue, derived doubtless from the juices of the coloured 
organisms. The lower or intestinal portion is of a brownish 
colour, and turbid. 
I have not seen the eggs of this species ; but half-grown 
young ones, in which the dorsal angle was very prominent and 
horn-like (see plate ix., fig. 5), I have found in the angles of 
the leaves of a water-moss. The full-grown animal is one of 
peculiar elegance. 
The Horned, or Fingered Floscule ( F . cornuta) of Dobie (see 
plate ix., fig. 6), has been elaborately described by Leydig (in 
1854) as if new, under the name of F. appendiciilata. I also 
met with it, and described it in MS. (in 1850), before I was 
aware of Dr. Dobie’ s Memoir. The substantial agreement of 
three descriptions, each independent of the others, satisfactorily 
establishes the species. It agrees, however, with ornata in all 
points, except that the dorsal projection of the disk is furnished 
with a slender, erect finger behind the knob. This is constant, 
even the young displaying it as soon as the disk is formed. It 
is seated on a fleshy pedestal projecting behind the dorsal lobe, 
just below the knob, which, as in ornata, is higher than the rest. 
The finger is not ciliated, nor does it appear to be separately 
moveable ; it has always a wavy course. It may possibly re- 
present the antenna. 
The case, according to my experience, is exceedingly difficult 
to see, nor have I been able to discern the least definition of 
outline, but only a slight granulation, which is moved when the 
animal rapidly retracts itself. The eggs are laid to the number 
of seven before there is any appearance of life in the embryo. 
They usually hang around the long foot, rather low down ; but 
