338 
Queensland Trematodes 
post-testicular space measures 5‘2 mm. The testes are elongated oval 
with a decided constriction about their middle. They measure about 
1'2 x 0'7 mm., the posterior being slightly the larger. 
The transversely oval ovary lies 05 mm. in front of the testes. 
Its dimensions are 0‘5 x 03 mm. The large shell-gland and the 
receptaculum semiuis lie close behind the ovary. The yolk glands are 
somewhat voluminous, extending from a little in front of the posterior 
border of the ventral sucker to within a short distance of the tip of the 
tail. They do not unite nor do they overlap the testes. The uterus is 
confined between the ovary and ventral sucker. It contains about 50 
eggs which measure 0T05-0'126 x 0065-0'077 mm. 
Of these two species of Echinostoma, Echinostomum elongatum bears 
most resemblance to E. uncatum Dietz. It has the same number of 
cephalic spines, but they are somewhat smaller. The suckers, particu¬ 
larly the oral sucker, and the pharynx are also smaller and the ova are 
larger. Altogether, apart from the size of the oral sucker, the differences 
between the two species are very slight. E. australasianum is most 
closely related, perhaps, to E. sarcinum Dietz, but differs from it chiefly 
by reason of the large size of the suckers and the great depth of the 
ventral sucker. 
Genus Patagifer Dietz. 
Patagifer bilobus (Rud.). 
A single specimen of this species was obtained from the intestine of 
a glossy Ibis {Plegadis falcinellus). 
Family DICROCOELIIDAE. 
Genus Eurytrema Looss. 
Eurytrema crucifer n. sp. 
(Plate XXIII, fig. 3.) 
A few specimens of this interesting species were found in the gall¬ 
bladder of a slow-worm ( Delma fraseri). It is a small plump species, 
measuring 0‘7-0 - 8 mm. in length and 0’35-0'4 mm. in greatest breadth. 
The outline is almost oval but the neck narrows very abruptly. There 
are no spines on the cuticle. 
The oral sucker has a diameter of 0T8 mm. and the smaller ventral 
sucker 0'15 mm. The latter is situated 0'35 mm. from the anterior end 
of the body. Both suckers are globular with wide apertures. 
