PHYLLOPODA OF W. AUSTRALIA. 299 
the present report, none of the Hulimnadia occurring elsewhere 
in Australia had been found in the West. 
We have rediscovered Wolf's species and can confirm his 
description of the same. 
In addition, we have two new species and the first record of an 
Eastern form. 
EULIMNADIA CYGNORUM, sp.n. (PI. I. figs. 9-13.) 
Shell compressed, thin, without trace of umbones (fig. 11). 
Lines of growth with great difficulty discernible and only about 
three visible. 
Dorsal line evenly arched, with highest point anterior to 
middle. General shape more resembling Hulimnadia rivolensis, 
but with a more obtuse posterior end. 
Head with rostral expansion in male, moderately long and 
bluntly pointed. In female much shorter and not acute (figs. 9 
& 11). 
Legs —not possible to make out exact number, but apparently 
not exceeding 18 pairs in female. 
Male with anterior legs subchelate—developed as claspers 
(fig. 13). The hooked termination, which is covered with small 
pits, carries a prominent stalked disc. The subapical appendage 
is extremely long in this species, much longer than in either 
Hulimnadia badia Wolf or Lulimnadia rivolensis Brady. 
There are two distinct segments, but it is possible that the last 
extremely long one is in reality two, as in Hulimnadia rivolensis. 
In any case the segmentation is very much less marked than 
in this latter species, specimens of which have been carefully 
compared with it. The appendage is longer than in any other 
Australian Hulimnadia. There is an angular prominence above 
the terminal hook, just as in Hulimnadia badia and Hulimnadia 
rivolensis. Whilst, however, it is not so large as in the former 
species, it stands away from the claw much more than it does in 
Huhmnadia rivolensis. ; 
The caudal claws (fig. 12) are slightly bent upwards, the 
proximal part very slightly so. The distal end is provided with 
a row of sawlike minute prickles. The proximal half bears a few 
feathered set. 
The lateral plates of the tail are almost straight and bear 
about 20 acute denticles. The most posterior one is large and 
perfectly straight, differing in this respect from Hulimnadia 
rivolensis. All the spines are provided with minute sawlike 
points along the sides. 
This species is characterised by 
(1) Shell and lines of growth. 
(2) Anterior legs of male. 
(3) Rostrum. 
(4) Caudal claws and tail. 
Specimens, both male and female, obtained from Cannington, 
near the Swan River. 
