1916. | J. STEPHENSON : Indian Oligochaeta. 341 
The female apertures appear to be indicated by a transverse 
depression on the anterior part of segment xiv, which is bounded 
along its anterior margin by furrow 13/T4. 
The spermathecal apertures are apparently indicated by slight 
whitish marks on segments viii and ix, in front of and between a 
and 0. 
Internal Anatomy.—The first septum appears to be 4/5, which 
is somewhat thickened: no more are visible till 8/9, which is slightly 
thickened; 9/10, 10/11 and 11/12 are considerably, 12/13 somewhat 
and 13/14 slightly thickened. 
The gizzard, in front of septum 8/9, is subspherical, firm and 
well-developed. A single pair of calcareous glands is present, tak- 
ing up segments xv and xvi; they are thus of considerable size 
The intestine begins in xvii. 
The last heart is in xi. 
The excretory system is micronephridial. 
Testes and funnels are free, embedded in sperm masses in 
segments x and xi; the funnels appear to be of relatively large 
size. 
The vesiculae seminales are two pairs. Those in segment ix, 
attached to septum g/I0, are flattened, with their edges cut up 
into lobes; those in xii, depending from septum I1/12, are of 
considerable size. 
The prostates, in xvii and xix, are tubular, the tube forming 
only a few coils and maintaining the same appearance and diame- 
ter throughout. 
The ovaries are situated in segment xiii; there is a pair of 
ovisacs in Xiv. 
The spermathecae are two pairs, one opening at the level of 
septum 8/9, the other opposite the middle of the gizzard, and so 
probably at the level of the absent septum 7/8. The ampulla is 
of moderate size, and very irregular, more or less ovoid in shape; 
a prolongation of one end forms a short and narrow stalk. A small 
stalked rounded diverticulum arises (in three out of the four) from 
the middle part or from the lower end of the duct ; in one case it 
seemed to be a mere bulging of one side of the duct. 
The penial setae are in length °58 mm., in breadth 10 at the 
middle, 12" nearer the base. The shaft is slightly curved, the 
distal end has a somewhat sinuous outline, and the tip is pointed. 
The ornamentation consists of a number of relatively large spines 
near but not extending quite to the tip (fig. 32). 
The copulatory setae (fig. 33) in segment viii (no sacs or 
setae were seen in segment ix) are 52 mm. long and 17 broad. 
They arenot much modified ; the shaft is slightly curved along most 
of its extent, more so at its proximal end than elsewhere. The 
distal end is pointed, and slightly bulbous close to the tip; above 
(proximal to) the bulbous portion the lateral aspects of the seta 
are marked by a number,—more than a dozen,—of serrations ; 
the appearance is that of a lateral flange or seam cut up into 
teeth. 
