342 Queensland Trematodes 
The uterus lias the disposition characteristic of the genus. It winds 
back from the ovary between the testes and fills a considerable part of 
the post-testicular space. It returns the same way and passes forward 
to the genital aperture. The eggs are not very numerous. They 
measure 0'030-0'032 x 0 015-0 016 mm. 
Genus Dolichopera n. g. 
Dolichopera parvula n. sp. 
(Plate XXIV, fig. 6.) 
Two specimens of this interesting species were obtained from the 
intestine of a carpet snake (Python variegatus). It is a small delicate 
species with rounded anterior end and sharply pointed posterior. The 
measurements taken from a slightly pressed specimen are :—length 
27 mm., maximum breadth 07 mm. just in front of the ventral sucker. 
The cuticle is covered with short spines which disappear behind the 
ventral sucker. The oral sucker has a diameter of 071 mm. and the 
ventral 0'34 mm. The latter is situated at a distance of 1*51 mm. from 
the anterior end of the body. The pharynx is almost contiguous with 
the oral sucker and has a diameter of 0'09 mm. The oesophagus is 
about as long as the pharynx and the diverticula extend right to the 
posterior end of the body, curving inwards behind the ventral sucker 1 . 
The genital aperture lies near the right margin of the body on the 
level of the posterior half of the oral sucker. The cirrus-pouch is 
slender and lightly curved. It stretches obliquely from the genital 
aperture to the intestinal bifurcation. It contains a simple bipartite 
vesicula seminalis, a small bulbous pars prostatica, and a short ductus 
ejaculatorius. Its dimensions are 0 - 26 x 0'08 mm. The ovary lies over 
the right posterior quadrant of the ventral sucker, and somewhat behind 
it. It is oval with its long axis oblique. The testes are almost sym¬ 
metrical and lie about 0'1 mm. behind the ventral sucker. The left is 
a little in advance of the right, and they are separated by a space of 
072 mm. They are longitudinally oval bodies with a long diameter of 
about 078 mm. They lie close to the intestinal diverticula. 
The yolk glands are very scanty, consisting of a few small follicles 
confined to the outer side of the intestinal diverticula and extending 
from the middle of the ventral sucker to the middle of the testes. 
The uterus is very voluminous and fills up the whole of the anterior 
part of the body behind the pharynx. It also completely encircles the 
