156 
RECORDS OF THE AUSTRALIAN MUSEUM. 
Gancelius typus , M. Edw., affords another instance of a similar 
kind. This species was described* without a definite habitat, but 
a few years ago it was found in South Australia, and shortly after- 
wards also in Port Jackson. + 
The habits and exact zone inhabited by this Scyllarus are 
unknown. It is, however, probable that it lives close in shore, at 
a considerable depth below the tide line, a region that has been 
little explored, having a distinct fauna which has yielded many 
new or rare forms, a few of which may be here noted : — 
Tropiclostethus rhothophiius , Ogilby, a small fish of the family 
Atherinida?., is common all the year round, and lives in the surf, 
being rarely seen except in the white foaming water. Notwith- 
standing its abundance, it remained unnoticed until found by the 
writer in 1893. 
Hemiscyllium rnodeslum, Gunther, commonly called the Blind 
Shark, inhabits the rocky recesses immediately below the tide 
line, and can only be obtained by fishing with a hook and line. 
A rare zoophyte, belonging to the genus Myriothela> and differing 
little from M, phrygia , Fabr., lives on seaweeds in the same zone, 
and until recently it had not been observed in Australian waters. 
The most remarkable example, however, is a small tubicolous 
Amphipod, which I refer without hesitation to the genus Siphonce- 
cetes. This genus, according to G. O. Sars, contains but three 
species — one arctic and two occurring on the coast of Norway. 
Early in the present year I found a number of examples of what 
I believe to be a fourth species, at Maroubra Bay, which had been 
washed up from a considerable depth during a heavy gale. The 
spot where the specimens were gathered has been my favourite 
collecting ground for many years, although I never met with the 
species before, and have since carefully searched the locality without 
avail. I am of opinion that this species lives in that intermediate 
zone which is out of reach from the shore at the lowest tides, and 
too rocky and inaccessible to the trawl or dredge. Occasionally 
at certain seasons, denizens of this region wander about the spring 
tide line, and may at such times be captured. As an instance, 
mention may be made of the rare and curious Isopod, Amphoroidea 
australiensis , Dana, a species of an olive-green colour like the 
plants upon which it feeds, and to which it clings so tenaciously 
that it can only be removed with difficulty. A single example was 
found on a loose piece of seaweed at Maroubra Bay in May, 1896. 
It was afterwards searched for in vain during my weekly visits, 
and was not met with again until December, 1898, when about 
fifty examples were obtained, and in J anuary of the present year 
* Milne-Edwards — Hist. Nat. Crust., ii., 1837, p. 243. 
f See List of Invertebrate Fauna — Proc. Roy. Soc. N. S. W., xxiii., 
1889, p. 232. 
