58 Memoirs of the Indian Museum. More 
The testis-sac is in segment x,—large, rectangular, attached to the posterior face 
of septum 9/10. On opening and emptying one of the sacs, the testis is perhaps seen to 
be represented by a small bushy projection on the ventral wall; there was also seen on 
the ventral wall of the delicate and transparent sac an oval ring-like opaque thicken- 
ing, perhaps representing the margin of the funnel; the vas deferens leads off from 
the anterior end of the ring, near which the testis is also situated. Curiously, in the 
second specimen examined, the right testis-sac was not contained in x at all, but in 
xii. Its empty neck passed beneath the ovarian chamber, and expanded in xii to a 
rectangular bag filled with genital products. The condition here therefore somewhat 
resembles that in Drawida ghatensis. A number of coils of the vas deferens also 
accompanied the testis-sac in xii. 
The vas deferens is a very long and much looped tube; the loops are long, 
straight, the two limbs running closely side by side; there are two bunches of such 
loops, one projecting forwards from septum 9/10 into ix, another on the posterior face of 
the septum, ventral to the testis-sac, projecting into x. The first part of the vas is 
thinner than the rest. 
The prostates are very large, sausage-shaped, extending back dorsal to the alimen- 
tary canal as far as septum 14/15; but this does not represent their full length, since 
14/15 is so much bulged back by them that it comes to lie at the same level as 16/17 dor- 
saltothe gut. The prostates are rather bent to one side at their hinder ends; they are 
of a pearly white colour, thus differing from the egg-sacs, testis-sacs and spermathecal 
ampullae, which are (in the preserved specimen) yellowish. The vas deferens in its 
terminal portion runs backwards on the surface of the prostate, opening into the latter 
some little distance from its hinder end. The terminal (anterior, ectal) part of the 
prostate is narrower than the rest, more shining and more like a duct: it is rather 
twisted, and appears finally to become rather broader again as it enters the body- 
wall. 
The ovarian chamber, situated dorsally and laterally to the alimentary tube, is 
morphologically the eleventh segment. The ovaries are contained within it, as a pair 
of fringes on the anterior wall of the chamber, arching dorsalwards over the gut so as 
to approach each other near the middle line. The funnel is seen as folds on the pos- 
terior wall which pass downwards to the ventro-lateral portion of the chamber. 
The ovarian chamber is quite free from the alimentary tube, and a needle can 
easily be passed between them. 
The ovisacs are large, lying alongside and of equal extent with the prostates; 
anteriorly they open by a narrow neck into the ovarian chamber. 
The spermathecal ampulla is broadly ovoid, situated on the posterior surface of 
septum 7/8, to which it is attached underneath the arch of the nephridium. The duct 
leaves the lower end of the ampulla, forms a number of coils in segment viii, and 
pierces septum 7/8 ventrally, close to its attachment to the parietes ; it then has a con- 
siderable course in vii passing finally between the two lobes of the atrial appendage 
to join the inner (internal) end of the stalk of the mass at the point where it bifur- 
cates (v. inf.). 
