120 
Queensland Trematodes 
As the uterus passes again to the left side the eggs rapidly become 
darker in colour so that the left posterior end of the body is usually 
dark brown. Passing forward it again crosses to the right and thence 
runs over the ventral sucker to the genital aperture. To the naked eye 
the posterior half of the body presents roughly the appearance of four 
quadrants two of which are yellow and two brown. The variations 
however are numerous. The convolutions are narrow and very discrete 
so that they do not obliterate each other, but they almost entirely hide 
the intestinal diverticula in the latter part of their course. One notice¬ 
able feature is the tendency to form small loops along the edges of the 
posterior third of the body. The eggs are excessively numerous and 
measure 0'024 to 0'025 x 0 - 015 to 0’017 mm. 
Platynotrema jecoris n. sp. 
(Plate VII, fig. 11.) 
In the liver of the same bird (Burhinus grallarius) from which the 
foregoing species was obtained, half a dozen specimens of another form 
were found. At first sight they appeared to be identical with those 
from the gall-bladder but the more slender shape attracted attention 
and on closer inspection an unmistakable difference in the situation 
and extent of the yolk glands was at once apparent. 
This second species is about the same size as the first and the length 
of the specimens is 2 - 6 to 4 - 8 mm. The maximum breadth, however, 
is only l'O to 1‘5 mm. and it occurs somewhat further back than in 
P. biliosum. The breadth is therefore at most only a little more than 
one third of the length. The general outline is somewhat different from 
that of P. biliosum for the posterior end is rounded and broad and the 
body tapers gradually towards the head. The colouration is very much 
the same. 
It is rather remarkable that this species, though so closely resembling 
P. biliosum in other respects, entirely lacks the cuticular scales which 
form so characteristic a feature of that species. 
The oral sucker is usually transversely elongated but not to any 
great extent. The diameter varies from 0’44 mm. to 0‘7 mm. and the 
average is about 0'56 mm. in a specimen 3 - 7 mm. long. The ventral 
sucker is difficult to measure accurately as it is much obscured by the 
uterus. In both these species the musculature of the suckers is feebly 
developed. Like the oral sucker the ventral sucker is usually trans¬ 
versely elongated and in one case was excessively so. The transverse 
