ON THE PHYLLOPODA OF W. AUSTRALIA. 293 
20. Fauna of Western Australia.—II. The Phyllopoda of 
Western Australia. By W.J. Daxin, D.Sc., F.LS., 
F.Z.S., Professor of Biology in the University of 
Western Australia. 
[ Received January 12, 1914: Read March 17, 1914.] 
(Plates I. & II.*) 
INDEX. Page 
ID RSTRNT TH JNWSTEAIUE, Soogo5 co odcoscosceceosonesobonocamonscaoose AOL 
Systematic : 
Branchinella australiensis var. occidentalis, nov. ...... 296 
1835 (OCTRAMOMBCLISOS, S> Wo coronansoccescocoe ban ssoseredeassoosooveca OS 
Hulimnadia cygnorwm, Sp. 0. ...0.. 6c ccc cee eevee eee eeennneee 299 
PS MUR E ECS US ASI alent aa iew nae neh ea nee ga ed he Paty ey le OO) 
Cyzieus (Estheria) rufa, sp. Me... .....0.c0cccecceeeeee eres 801 
Introduction. 
The Phyllopoda of Western Australia have, up to date, been 
known only from one or two specimens collected in the Murchison 
District and examined by Sayce tT; from one or two specimens 
worked at by Sars¢; and from those specimens collected by 
the Hamburg Expedition to the South-West in 1905§. The 
records are anything but extensive. Australia (as Wolf himself 
states in his report upon these crustacea) is a country where 
the conditions are particularly favourable for the presence of 
Phyllopoda. 
Western Australia is exceptionally well suited for these 
animals, and they are to be found everywhere in large numbers 
after the rainy season has commenced, They occur in small 
rock-pools far inland, in swampy places with perhaps two or three 
inches of water lying in depressions in fields, in temporary lakes 
on the goldfields, and even in depressions filled with water— 
extended cart ruts—on frequently used country roads. 
Future investigation should bring to light many more forms, 
for the area to be explored is indeed great. A glance at the 
following table will serve to indicate the species discovered up to 
date and also their distribution. 
Out of the 33 to 35 Phyllopods known from the Australian 
Continent previous to this paper, only two of those species found 
on the eastern side of the island were known to occur in 
Western Australia. Only nine species altogether had been re- 
corded from Western Australia, and seven of these were peculiar 
to the State. 
I have been able to add to the list a number of new forms, 
* Wor explanation of the Plates see p. 204. 
+ Sayce, Proc. Royal Soc. Victoria, New Series, vol. xv. 1902. 
~ Sars, Arch. for Math. og Naturvid. Christiania, xix. 
§ Wolf, Phylopoda: ‘Die Fauna Siidwest-Australiens,’ Band iii. (Jena, 1910- 
1911). 
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