338 Records of the Indian Museum. [VoL, XIT, 
to beseparate from each other ,—at least the opaque masses within 
them are separate, but the walls of the sacs are too delicate and 
transparent to be followed in the present specimen. 
The seminal vesicles, three pairs in segments xi, xii and \iii, 
are attached to the anterior walls of the segments. Those in xi 
are deeply incised, and have an appendage, separate from the rest 
of the sac, which extends nearly to the middorsal line; those in 
xii, also incised, extend nearly to the middorsal line by a narrow 
and tapering dorsal lobe; those in xiii are quite small. 
The prostates are rather small, occupying segment xviii only 
(right side) or xviii and xvii (left side). They are made up of 
small and closely adpressed lobules. The duct is short and almost 
straight; there is no copulatory pouch,—at least none is distin- 
guishable in the present specimen, though it is possible that one 
might have been visible in a fresh or a well-preserved specimen. 
The spermathecal ampulla is pear-shaped, and becomes con- 
tinuous with the duct at its broader end. ‘The duct is half the 
length of the ampulla, and is half as broad also,—rather narrower 
where it pierces the bodywall; it appears broader than it is how- 
ever, since it is covered with a considerable fur of micronephridia. 
The single diverticulum is tubular with a spherical or ovoid dilata- 
tion at its free extremity; it is half the length of the ampulla, 
and is attached to the upper end of the duct near the base of the 
ampulla; in one case there was present a small excrescence at the 
base of the terminal dilatation, where the latter passes into the 
stalk (fig. 30). 
Gen. Octochaetus. 
Octochaetus fermori, Mchlsn. 
Karakulam, 17-x-1g11. A number of specimens. 
In a previous paper I recorded the presence of a second pair 
of ovaries in this species (24); I even went so far as to state that 
microscopic examination confirmed the ovarian nature of the struc- 
tures. After an examination of a specimen of the present batch of 
material, however, I believe the structures to be ovisacs : no doubt, 
in my previous examples, they contained ova, and not being on the 
look-out for ovisacs in a species belonging to the present genus, I 
interpreted the mass of ova wrongly. 
Octochaetus surensi, Mchlsn. 
(Plate xxxiii, fig. 31). 
Barkul, 0-1000 ft., Orissa, 1—3-viii-1g1g (/. H. Gravely). Two speci- 
mens, one injured anteriorly. 
I give a description of some of the features of the present speci- 
mens, in order to supplement Michaelsen’s account (14). 
External Characters.—I,ength 90 mm., diameter 3°5 mm. Col- 
our dark purplish brown along a middorsal strip, rapidly fading off 
laterally, so that the sides as well as the ventral surface are unpig- 
