THE FLOSCULES. 167 
is not discernible till adult age : though, doubtless, it begins to 
be excreted early. 
As in the adult, the long bristles are perfectly motionless in 
general, but there are short cilia distinctly vibrating on the 
margin. The httle animal in this stage frequently contracts 
itself : the jaws are plainly seen, and are often open and shut. 
Nothing has yet been discovered of the male sex, if it differs, 
as is in all probability the case, from the female. 
Ehrenberg described and figured a second species, which he 
named F. proboscidea , with the following remarkable cha- 
racter : — “ Out of the centre of the six-parted, sometimes 
apparently five-parted, wheel-organ [disk] projects a great 
cylindrical, somewhat flexible tube, which seems to have a large 
opening in front. The anterior end of this snout-like tube, as 
well as the knobbed points of the wheel-organ, carries long in- 
active cilia [bristles] , which rotate strongly only partially, when 
they bring food.” This species has not been seen by any other 
observer, and there is some suspicion that it was the result of 
defective observation : yet as the eminent professor says he 
found many specimens, and on two occasions, we must not 
hastily reject it. It occurred on the leaves of the water-violet, 
in a ditch near Berlin . 
In 1849, Dr. Dobie described two other species under the 
names of F. campanulata and F. cornuta. The “ Micrographical 
Dictionary,” indeed, speaks of these as “ doubtfully distinct;” 
but without reason, for having repeatedly met with both, I can 
vouch for the accuracy of Dr. Dobie 5 s descriptions and figures, 
and for the permanence of the species. 
The former (see plate ix., fig. 4) differs from F. ornata in the 
great breadth of the disk, as compared with the body. It forms 
a wide, shallow funnel, the edge of which projects into five very 
obtuse points, without knobs, the dorsal one broader and higher 
than the rest, and frequently arched inwards. All the points are 
beset with the usual radiating bristles. The dorsal projection I 
have occasionally noticed to present an appearance of perfora- 
tion, but it may have been illusive. A clear, round, well- 
defined space will sometimes form in the midst of its area (see 
fig. 4), of which not a trace can be discerned before or after. 
All round the edge of the disk there passes a narrow band of 
granular tissue, which seems to be a continuation of the sensi- 
tive contractile membrane which lines the upper part of the body, 
and forms the crop ; for it may be traced along each side of the 
neck (in this species a distinct broad collar), to the margin of 
the crop. It has thickenings at the angles of the disk, and at 
the constrictions of the collar. 
The ciliary vortex, as in F. ornata , brings in animalcules to 
the funnel-disk. If they are not carried far in, the margin 
NO. II. N 
