1915.] J. STEPHENSON : Indian Oligochaeta. 67 
as the preceding; some segments appear to want them, and the line of the series is not 
as straight; (iii) other scattered nephridia, also of the same size, further out on the 
body-wall, not in line with each other, and not present in every segment. 
Testes could not be distinguished. Funnels however were distinguished, free in 
x and xi, as a minüte gleam posteriorly by the side of the nerve cord in each segment 
(the left side only was examined, since the specimen is single). 
The vesiculae seminales are small, in xi and xii. In xi, as already said, the vesicle 
appears as a lobed fringe round the margin of the calcareous gland; its connection 
with the anterior septum could not be made out,—possibly the genital products 
travel by the side of the alimentary canal; on the other hand it was. adherent, in 
places at least, to the posterior septum. The seminal vesicles in both segments are 
dorsal, and those of opposite sides are fused over the gut, so that a single structure 
in each segment results; they aré much cut up into small lobes, and so present a 
racemose appearance. 
The prostates, situated in segments xviii and xix, are tubular. At their begin- 
ning (ental end) in xix they are rather coiled; the terminal portion forms a short 
and narrow duct. At a distance equal to about one-fourth of its length from its ectal 
end, the prostate is bound down to the body-wall by the sac of the penial setae which 
here crosses over it. 
Ovary and funnel, the latter very small, were identified in xiii. 
The spermathecae (fig. 10) are elongated and finger-like, with a dilated basal 
portion; this basal portion is smoother than the rest, which appears slightly crenula- 
ted, or rather, perhaps, marked by a number of indistinct transverse striations, due 
possibly to the folding of the inner surface of the wall. The finger-shaped portion is 
double as long as the dilated base, and may be bent on itself (three out of the four). 
A small spherical diverticulum arises from the basal dilatation where it joins the 
body-wall; in breadth it is only equal to a fourth or a third of the base to which it 
is attached. It contained a small glistening mass;—the specimen had therefore 
undergone copulation. 
Penial setae (fig. II) are present, in length ‘82 mm., in breadth 144 The shaft 
is straight for the most part, curving slightly towards the free end, the tip tapering, 
bluntly pointed and curved slightly in the opposite direction. A few minute pointed 
projections, the points directed towards the base of the seta, are irregularly scattered 
near the free end. 
Remarks.—In spite of the indistinctness of the clitellum, apparent absence of 
testes, and small size of vesiculae seminales, the specimen appears to be mature ;— 
penial setae are present, as are ovary and ovarian funnel, and as noted above copula- 
tion had occurred. The appearances are possibly to be explained by the opposite suppo- 
sition,—that the period of most active functioning, of the male organs at least, 
is over. 
The condition of the nephridial system in the hinder part of the body is 
somewhat reminiscent of Trinephrus,—a genus which has not so far been found in 
India, 
