18 
Quarterly Journal. 
a Trachelocerca, or swan-neck. Fig. 4, a Goleps. Fig. 5, 
an Adinophrys (A. sol?), and a Paramcecium, of which I 
could only get an outline. A Monad, fig. G, and fig. 7 an 
Astasia with a very long anterior cilium or thread, which 
it waved about when moving from place to place; it 
had a cleft in its posterior end. A small Vorticella, 
fio-. 8, evidently not V. macrostoma; an Adinophrys 
difformis, tig. 1); and a small Infusorium, fig. 10, with 
globules in it, which kept moving quickly from the 
smaller to the larger end, coming back, I presume, on 
the other side, out of focus. This lagoon, as may be 
inferred from this single gathering, furnished good 
hunting grounds, but I moved away from the locality soon 
after and never had another chance of dipping into its 
waters. More than twelve months passed before I again 
observed any new infusoria, when I found at Maryborough 
a peculiar Vorticella, fig. 11, the body of which was ringed, 
and it had a small circular vacuole, or nucleus, also a small, 
round Infusorium, fig. 12, with very strong cilia, oi spines, 
of which those at one end were parallel, or nearly so, and 
which did not seem flexible ; those round the remainder of 
the circumference were radial; it moved so quickly across 
the field of view as to be almost invisible until it came to 
rest, which it did suddenly, and after remaining still for a 
second or two darted off again, resting again after a short 
interval, and keeping this up as long as I watched it. A 
little while later I found a Trachelocerca, fig. 13, of a form 
different from fig. 3; it liad a short tail and seven lound 
vesicles, small cilia at the end of its proboscis, and from 
the cluster of cilia near its junction with the body the 
mouth appeared to be there. Several other forms were 
present, such as I had observed before, and a very peculiar 
one, fig. 14, which appeared to be remarkably like what 1 
should° fancy a living Folycistina would be, for it had as 
shown a framework which appeared to be inflexible. I only 
saw a single specimen. A few days later, from the same 
locality, I found a Ghcetonotus, fig. 15, a large number of 
Euqlypha alveolata, and a Euylena viridis, fig. 16. 
The last I have recorded is fig. 17, a very curious form, 
much resembling a small marine medusa in appearance ; it 
may have been a Vorticella in the free state, but I think it 
was too large. 
