332 Records of the Indian Museum. [ VoL. XII, 
The clitellum is not definitely limited; it appears to extend 
over xiv—ixvii—3}. 
On segment xviii is a thickened area, of the shape of an 
irregular pentagon with its base forwards and its lateral angles 
produced outwards. This area is surrounded by a moat-like chan- 
nel, deepest posteriorly where the margin of the pentagon over- 
hangs; the pentagon itself is marked by a |-shaped depression. 
The male apertures are under the overhanging posterior borders of 
the area, near its lateral angles, and in line with setae Jb. The 
transverse extent of the thickened area with the surrounding moat 
is equal to the interval cc; in a longitudinal direction it occupies 
the anterior two-thirds of segment xviii (fig. 23). 
The female apertures are perhaps represented by two small 
whitish dots in line with the setae of xiv in such a position that 
al?=? 9= Pa. 
The spermathecal apertures, in 7/8 and 8/9, are small pores 
in line with setae D. 
Internal Anatomy.—The first distinguishable septum is 5/6, 
which is thin; septa 6/7—10/11 are considerably thickened, the 
next few moderately so, after which they are diminishingly thick- 
ened as far back as 16/17: the rest are thin. 
The gizzard, in segment v, is of fair size, firm and barrel- 
shaped. There are no calcareous glands. The intestine begins in 
XVi. 
The last heart is in segment xiii. 
The micronephridia are present as large tufts in the anterior 
segments from v to the clitellum, especially in from v to ix; there 
are few or none on the bodywall in front of the clitellum, but the 
inner surface of the parietes in segments xiv, xv, xvi and part of 
xvii is thickly covered with micronephridia ventrally and laterally. 
They are scattered and fairly numerous on the bodywall behind 
the prostate. 
Testes and funnels are free in x and xi. 
Vesiculae seminales are attached to the anterior walls of seg- 
ments xi and xii. Those in xi are small, those in xii moderate in 
size; all are much cut up into small lobes. 
The prostates, long, flat and much divided up, lie on the 
bodywall in segments xvii to xx. The duct, with a sinuous or 
curled course, passes backwards and inwards from its origin on the 
inner margin of the gland at about the level of septum 17/18; its 
first part is the thinnest. 
The ovaries and their funnels have the usual situation. 
The spermathecae (fig. 24) are of a general sausage-shaped 
form, bent inwards towards their free (posterior) end, and slightly 
dilated at the extremity. The duct is short and moderately stout, 
half as thick as the ampulla. There is a single diverticulum, 
which arises from the duct close to its junction with the ampulla ; 
it is of an elongated club shape, and more than half as long as the 
ampulla, reaching about as far as the bend in the latter. 
There are no penial setae. 
4 
