‘Guar. XVI. UTRICULARIA MINOR. 429 
prominent, and always bear, as far as I have seen, seven or 
eight long multicellular bristles. There are eleven long bristles 
on each antenna, the terminal pair being included. Five 
Dladders, containing prey of some kind, were examined. The 
first included five Cypris,a large copepod and a Diaptomus ; 
the second, four Cypris; the third, a single rather large crus- 
tacean; the fourth, six crustaceans; and the fifth, ten. My 
son examined the quadrifid processes in a bladder containing 
the remains of two crustaceans, and found some of them full of 
spherical or irregularly shaped masses of matter, which were 
observed to move and to coalesce. These masses therefore con- 
sisted of protoplasm, 
UTRICULARIA MINOR. 
This rare species was sent me in a living state from Cheshire, 
through the kindness of Mr. John Price. The leaves and 
bladders are much smaller than those of Utriculariu neglecta. 
The leaves bear fewer and shorter bristles, and the bladders are 
more globular. The antennz, instead of projecting in front 
of the bladders, are curled under the valve, and are armed with 
twelve or fourteen extremely long 
multicellular. bristles, generally 
arranged in pairs. These, with 
seven or eight long bristles on 
both sides of the peristome, form 
a sort of net over the valve, which 
would tend to prevent all ani- 
mals, excepting very small ones, 
entering the bladder. The valve 
and collar have the same essential Fic, 25. 
structure as in the two previous (Ctricularia minor.) 
species ; but the glands are not  uadrifid process; greatly enlarged. 
quite so numerous; the oblong 
ones are rather more elongated, whilst the two-armed ones are 
rather less elongated. The four bristles which project obliquely 
from the lower edge of the valve are short. Their shortness, 
compared with those on the valves of the foregoing species, is 
intelligible if my view is correct that they serve to prevent 
too large animals forcing an entrance through the valve, thus 
injuring it; for the valve is already protected to a certain 
extent by the incurved antenne, together with the lateral 
bristles. The bifid processes are like those in the previous 
species; but the quadrifids differ in the four arms (fig. 25) 
