PHYLLOPODA OF W. AUSTRALIA. 297 
Queensland. The description was, however, overlooked until 
re-discovered by Hall and Sayce. The latter found the species 
to be quite common near Melbourne. It occurs in Central 
Australia, the coastal area of Southern Australia, and in North 
and South Victoria. 
In fact, its known distribution was pretty general, and only 
Western Australia seemed to be without it. 
Two large Branchipods have been investigated in the course of 
this work, both unfortunately of the same sex. They agree in 
very. many points with the description given by Sayce. 
Description of male (fig. 1).— Body stout: trunk of equal length 
to tail. Branchial feet with large covering plates. The six 
endites are almost the same as in the figure given by Sayce ™. 
The position of the flabellum is different, and the relative size 
of covering plate (proximal exite) and flabellum is considerably 
different. Claspers large and powerful (fig. 3), basal joint with 
inner surface clothed with minute teeth, the second joint longer 
in proportion to the first than in typical Branchinella australiensis. 
The inner surface of the clasper bears curious transverse over- 
lapping shelves (fig. 4). These have the appearance of transverse 
ridges. They end abruptly along a regular line at each side. 
Frontal appendages invisible in specimens. First antenne re- 
markably long, filiform, and about three times the length of the 
second antenne (fig. 2), and quite different from those four ed by 
Sayce for Branchinella australiensis. Caudal rami no longer than 
the last four segments of tail. Sheath of penis not notched (penes 
were not everted). Length inclusive of caudal rami 35 mm. 
The resemblance to Br ranchinella australiensis seems to be great 
enough to consider this as a variety of form. The outhatandime 
difference is in the first antenne and the reduction of the frontal 
appendages. 
Locality. Lake Violet (near the centre of Western Australia). 
BRANCHINELLA LONGIROSTRIS (Wolf). 
This characteristic form was first discoveved in the course ot 
the Hamburg Expedition, and had only been recorded this 
once from Australia. It has now been collected again (seven 
years later) from similar situations in the district where it was 
originally found. 
Both males and females occur. The characteristic huge frontal 
appendage of the male cannot possibly be mistaken. 
For complete diagrams see Wolf f. 
Locality. Small rain-water ponds in depressions in rocks at 
Burracoppin. They occurred with the same companions found 
by the Hamburg Expedition, viz. specimens of Hilimnadia 
badia. 
* Proes. R. Soc. Victoria, N.S. xv. pl. xxx. 
+ Wolf, Phyllopoda: ‘ Die Fauna Stidwest-Australiens,’ Band iii. (Jena, 1910-1911). 
