1916. | J. STEPHENSON : [ndian Oligochacta. 339 
mented ,—over the greater part of the body at least; the clitellum 
is brown all round; and in front of the clitellum also the pigmen- 
tation extends on to the lateral aspects of the body. A slightly 
lighter band, very narrow, at the middle of each segment, corres- 
ponds to the zone of the setae. 
Segments 171; vii to x more or less distinctly triannular, xi and 
x1i quadriannular dorsally. 
Prostomium epilobous }?, the sides of the tongue parallel, the 
tongue not cut off behind. 
No dorsal pores are to be seen in front of the anterior border 
of the clitellum; the first one seems to be in this situation, 7.e. in 
12/13, but all are small. 
The ventral setae are paired, the dorsal less closely so. The 
ratios between the various intervals may be expressed as follows :— 
in front of the clitellum ab—2Zaa=4 to 2bc = approximately 
tcd; behind the clitellum ab—2aa approximately, = %bc 1d; 
in the middle of the body ab—=4aa—= rather more than 3$bc = 
nearly }cd. The interval dd is about # of the circumference. 
The clitellum extends over xiiti—}xvii= 4} above, but appa- 
rently only to4xvi= 3} below. 
A male area is distinguishable, constituted by the flattened 
ventral surface of segments xvii—xx, quadrilateral in shape with 
rounded corners. The prostatic pores, on xvii and xix, are small, 
with slightly tumid margins; they are united on each side by 
straight, very narrow,—indeed linear grooves, and across the 
middle line by broad grooves with shelving anterior and posterior 
walls; these transverse grooves are continued outwards in a more 
or less definite manner beyond the situation of the prostatic pores 
for a short distance. In thesecond specimen the longitudinal semi- 
nal grooves are rather bowed outwards. The male pores are not 
visible. The situation of the grooves and prostatic pores is be- 
tween a and Db. 
The female apertures, on the anterior part of segment xiv, are 
paired, and contained in a small transverse groove surrounded by 
a whiter area. The pores themselves are slightly internal to the 
line a. 
The ventral surface of segments viii and ix is rather irregular- 
ly thickened and glandular in appearance. No setae are visible, 
but corresponding to the position of setae a or between a and Dthere 
are small white and slightly elevated points, the spermathecal 
apertures. 
Internal Anatomy.—Only a few points need be noticed. The 
first septum is 5/6, which is moderately thickened; the next is 8/9, 
thin and displaced backwards to about the position of furrow 9/10, 
septum 9g/Io itself, moderately thickened, is midway between fur- 
rows 9/10 and 10/11; the remaining septa are in the normal posi- 
tions, 10/11 being moderately thickened, 11/12 considerably thick- 
ened and 12/3 slightly so; the rest are thin. 
The gizzard is large, between septa 5/6 and 8/9; morpho- 
logically it is insegment vii, since the two vascular commissures close 
