Cuap. XVIUL CAPTURED ANIMALS. 435 
are present in the cells forming the walls of the 
bladders. Bifid processes, having rather short oval 
arms, arise in the usual position on the inner side of 
the collar. 
These bladders, therefore, resemble in all essential 
respects the larger ones of the foregoing species. 
They differ chiefly in the absence of the numerous 
glands on the valve and round the collar, a few minute 
ones of one kind alone being present on the valve. 
They differ more conspicuously in the absence of the 
long bristles on the antenne and on the outside of 
the collar. The presence of these bristles in the pre- 
viously mentioned species probably relates to the 
capture of aquatic animals. 
Fig. 28. 
(Utricularia montana.) 
One of the quadrifid processes ; much enlarged. 
It seemed to me an interesting question whether 
the minute bladders of Utricularia montana served, as in 
the previous species, to capture animals living in the 
earth, or in the dense vegetation covering the trees on 
which this species is epiphytic; for in this case we 
should have a new sub-class of carnivorous plants, 
namely, subterranean feeders. Many bladders, there- 
fore, were examined, with the following results :— 
(1) A small bladder, less than J, of an inch (‘847 mm.) in dia- 
meter, contained a minute mass of brown, much decayed matter ; 
and in this, a tarsus with four or five joints, terminating in a 
double hook, was clearly distinguished under the microscope. 
I suspect that it was a remnant of one of the Thysanoura. The 
quadrifids in contact with this decayed remnant contained either 
small masses of translucent, yellowish matter, generally more 
