Chap. XVIII. POLYPOMPHOLYX. 445 



POLYPOMPHOLYX. 



This genus, which is confined to Western Australia, 

 is characterised by having a " quadripartite calyx." In 

 other respects, as Prof. Oliver remarks,* " it is quite a 

 Utricularia." 



Pohjpo7n]oholj/x multifida. — The bladders are attached 

 in whorls round the summits of stiff stalks. The two 

 antennae are represented by a minute membranous 

 fork, the basal part of which forms a sort of hood over 

 the orifice. This hood expands into two wings on each 

 side of the bladder. A third wing or crest appears to 

 be formed by the extension of the dorsal surface of the 

 petiole ; but the structure of these three wings could not 

 be clearly made out, owing to the state of the speci- 

 mens. The inner surface of the hood is lined with 

 long simple hairs, containing aggregated matter, like 

 that within the quadrifid processes of the previously 

 described species when in contact with decayed ani- 

 mals. These hairs appear therefore to serve as absor- 

 bents. A valve was seen, but its structure could not 

 be determined. On the collar round the valve there 

 are in the place of glands numerous one-celled papillae, 

 having very short footstalks. The quadrifid processes 

 have divergent arms of equal length. Remains of 

 entomostracan crustaceans were found within the 

 bladders. 



Polypomphohjx tenella. — The bladders are smaller 

 than those of the last species, but have the same 

 general structure. They were full of debris, apparently 

 organic, but no remains of articulate animals could 

 be distinguished. 



Proc. Linn. Soc' vol. iv. p. 171. 



