62 Memoirs of the Indian Museum. Vor. N 
The setae are paired; aa—=2ab, bc=1hab=cd; the setae d are dorso-lateral, and dd 
=about 3cd, and is approximately one-third of the circumference. In the anterior 
part of the body dd is rather greater. Setae a and 0 are absent on xviii. 
The clitellum is a little lighter in colour than the rest of the body, and extends 
from 4 xiii to 4 xvii or over the whole of xvii=4 or 44. The mid-ventral region has 
here the form of a longitudinal groove. 
The male apertures are on small papillae on segment xviii, between the positions 
of setae a and 6 which are absent here. The female apertures were not seen ; in sec- 
tions they were found to be paired, opening at the level of the setae of xiv. The 
spermathecal apertures are minute, in furrows 7/8 and 8/0, in the line 0. There were 
no other genital marks. 
Internal anatomy.—The internal structure was elucidated by sectioning one and 
dissecting another specimen. 
Septa 4/5, 5/6 and 6/7 are all thin, 7/8 and 8/9 are slightly thickened, 9/10—11/12 
are moderately thick, and finally 12/13 is also slightly thickened. 
The pharyngeal glands appear, as usual, as deeply staining masses in sections; 
in iv the cells are mingled with the muscular bundles on the dorsum of the pharynx ; 
and the mass extends backwards as far as vii. The oesophagus is straight through- 
out its length ; it is dilated in v, but its wall is not thickened. There is no gizzard, 
nor any calcareous glands. 
No heart was seen posterior to segment xii. 
The excretory system is meganephric; the nephridia begin in xii (sections) or xiii 
(dissected specimen). 
Testes and spermatozoa are free in x and xi. A funnel is present in xi; none 
were identified in x. 
The vesiculae seminales are two pairs, in ix and xii, depending forwards and 
backwards from septa 9/10 and 11/12 respectively. 
The prostates are tubular: but the condition is liable to be mistaken at first sight, 
both in sections and in dissection, for the compact branched form. ‘The gland is 
moderate in size, and confined to segment xviii. The coils of the tube are closely 
pressed together, and both in sections and in the dissection resemble lobes of a Phere- 
tima-prostate; but by careful manipulation the coils can be loosened from each other. 
The terminal portion of the duct is at first thin-walled and winding; near its endingin 
the body-wall it becomes stouter and more muscular. 
The ovaries and funnels are in segment xiii; the oviducts pass back into xiv and 
open, separately from each other, at the middle of the length of the segment. 
The spermathecal ampullae are ovoid or subspherical in shape ; in sections they 
reach upwards to the dorsal body-wall. The duct is stout, narrowing towards its ter- 
mination, and about half as long as the ampulla, from which it is not sharply demar- 
cated. There is a single diverticulum, given off from the middle of the length of the 
duct; in shape it is elongated, spindle or club-shaped, and reaches upwards by the 
side of the ampulla to about half the height of the latter. 
Remarks.—The above account (except the measurements and enumeration of seg- 
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