56 Journal of the Asiatic Society of Bengal. {January, 1913.] 
there is a small interval in the middle line between the medially 
situated areas of the two sides. As seen in sections, the integu- 
ment of the ventral surface of segment xv also contains more 
glandular cells than neighbouring regions, though no difference 
was noted externally. : 
The setae are not arranged in pairs, and the intervals 
appear to be a little variable. In one case these were estimated 
as aa=ab=be=cd=} dd approximately; in another aa slightly 
> ab, ab=cd, aa approx.=be, dd=21 cd. The length of an 
ordinary seta is °3 mm. 
Setae a and 6 in segment ix may be described as genital 
setae. They are implanted in the middle of the copulatory 
areas, and are long and straight ; the setal sac and its muscles 
go much deeper into the body in the case of the genital than in 
the ordinary setae. A perfect seta was not obtained in any 
ae section; the length however is probably approximately 
“49 mm. 
The specimens being so small, the internal anatomy could 
only be investigated by sections; the first 22 segments of one 
specimen was therefore sectioned longitudinally. 
e oesophagus shows dilatations in xi-xii and in xiii-— 
xiv, with longitudinal ridges projecting into the lumen. In xv 
is a larger thin-walled dilatation, with vascular walls, but no 
marked ridging. The gizzard extends from 4 xvi-xix = 3}. 
he last heart is in xi. 
and of about the same size. The sacs in ix are paired, as also 
those in xii, those these latter meet dorsally over the intestine ; 
in x and xi the sacs of each segment are completely fused above 
the gut. 
The spermathecae are in segments x and xi, they are slightly 
ovoid, almost spherical sacs, paired, with narrow and some- 
ays , and in the presence o 
the large seminal vesicle in segment x; indeed, in respect of the 
: : ts ix and x (small in ix, 
large in x) it appears to be peculiar in the subgenus. 
