W. Niooll 
31 
transverse and densely packed together. The terminal part of the 
uterus runs up on the left side of the testis to enter the vaginal sac. 
The ova are thin-shelled and of small size, measuring only 0-018-0-026 
X 0-012-0-013 mm. The size of the eggs is fairly constant in each 
specimen, but varies considerably in different specimens. In some 
they are more sharply pointed than in others. 
This species is obviously a member of the family Monorchiidae and 
it appears to be most closely related to the genus Genolopa Linton (1910), 
and to the type species G. ampuUacea Linton. The latter is a much 
smaller form but the one outstanding difference in the internal anatomy 
lies in the shape of the ovary, which in G. ampidlacea is roughly triangular. 
In the latter species, moreover, a receptaculum seminis is stated to be 
present, while well-marked spines occur on the cirrus, though not in the 
vaginal sac. 
Genolopa cacuminata n. sp. 
(Plate IV, fig. 5.) 
Along with Genolopa trifolifer numerous specimens of a distinct, 
though allied, species occurred in the intestine of the grunter {Pomadasis 
hasta). A single specimen also occurred in the swim bladder. They 
are readily picked out by reason of their more slender shape. 
It is an elongated form measuring 2-1-3-25 mm. in length with a 
maximum breadth of 0-5-0-64 mm. The widest part is just behind the 
middle of the body. From there it tapers rapidly towards the sharply 
pointed tail and more gradually towards the anterior end. The neck 
is long drawn out and slender. The anterior part of the body is clothed 
with thickly set spines, but these are apparently absent behind the level 
of the ovary. The following description is from the largest specimen. 
The funnel-shaped oral sucker is almost terminal and measures 
0-15 X 0-13 mm. The weak ventral sucker is decidedly larger, having 
a diameter of 0-18 mm. It is situated exactly one-third of the body 
length from the anterior end. 
There is a long, narrow prepharynx 0-19 mm. in length. The 
pharynx is sub-globular and measures 0-12 x 0-11 mm. It is succeeded 
by a slender oesophagus about the same length as the prepharynx. 
The intestinal diverticula are narrow and terminate some distance from 
the posterior end of the body. 
The genital aperture is situated immediately in front of the ventral 
sucker. The cirrus-pouch is elongated and club-shaped. Its dimensions 
are 0‘7 x 0-25 mm. and it extends a trifle beyond the middle of the body. 
