niont. About a month ago they wore 
very plentiful in the harbour at Ho¬ 
bart in this form. When they grow 
up they separate, and begin their life 
history anew. 
The who'e of the next day was spent 
by another ardent naturalist (Mr. 
Rodway) and myself in searching the 
shore and further inland for material. 
Here our success was more pronounced. 
Specimens were got of a new Phreo- 
drilid worm (cousin of the earthworm), 
anti what was of more interest to my¬ 
self. a small P’anarian worm. This is 
a very small flat worm-like animal 
which crawls about like a snail, hut 
its most peculiar point is that, its 
mouth lies, not at the head end of the 
body, but in the middle of the under¬ 
surface, and it habitually moves about 
with part of its “stomach" protruded 
through its mouth, forming a sort of 
proboscis 
Among the shore material were a 
number of Ncmertine worms, nearly 
re'ated to the above P'anarian, having 
a somewhat similar proboscis: this is 
at the head end, and is furnished with 
lancets or stinging organs. There were 
also specimens of polyzea—animals 
which live together in tubes from 
which their tentacles wave, and into 
which, when disturbed, they are able 
to retract, often covering their retreat 
by closing the tube with a kind of lid. 
A number of specimens were got un¬ 
expectedly; a shark, caught by one re- 
douhtab'e fishing party, yielded a whole 
crop of tapeworms and other parasites; 
the barracoota was found to harbour 
numbers of round or thread worms, and 
in the body of the rockcod some rela¬ 
tives of the same animal, which causes 
fluked liver in sheep, were obtained. 
Those of the party who prowled along 
the beacli at night were surprised to 
find numbers of a small luminous ani¬ 
mal. which on examination was found 
to be an interesting kind of sand- 
hoprer. When put in a collecting tube, 
one of these creatures was capable of' 
lighting up the whole tube with a beau- 
ti'nl b ii isn g’ow. and it took some con¬ 
siderable time of immersion in spirit 
to “put its light out.” Numbers of 
other specimens were obtained, but of 
no special interest. 
On the whole, the results of the trip 
were good, and serve to emphasise the- 
benefits of such excursions ns these in 
a place like Tasmania where the in¬ 
vertebrate fauna has been so greatly 
neg'ected. There is plenty of scone for 
dredging and other collecting in the 
estuary of the Derwent itself, and it 
behoves this energetic litt'e associa¬ 
tion to take upon itse'f—there being no 
others to do it—the work of systemati¬ 
cally collecting and examining the com¬ 
paratively unknown material so close- 
at hand. 
Note.—The illustrations accompany¬ 
ing this article are taken from photos, 
by Messrs. J. W. Beattie (on pages 13, 14, 
15, iC and if. is, 21, and 23); R. C. Har- 
vev (on pages 3, 10, 22, 25, 26, 29, and 30); 
and E. A. Elliott and B. R. Walker of 
camp scenes. 
