1916. } J. STEPHENSON : Indian Oligochaeta. 351 
lar and similar in appearance to what has just been described, but 
the separate papillae are not so well marked. Another papillose 
excrescence occurs dorsally on the left side on segment xxiv ; this 
is a similar patch of soit closely set papillae, taking up the length 
of the segment, but much broader in a transverse direction, ex- 
tending indeed from the middorsal line nearly to the lateral line 
of the body. Some of the specimens, perhaps not fully mature, 
showed the lateral ridges but no cauliflower-like excrescences. 
Internal Anatomy.—Septum 4/5 is thin, 5/6 slightly and 6/7 
somewhat thickened; 7/8 is moderately thickened, and is the 
strongest of the series; 8/9 to 11/12 are less thickened again, and 
12/13 only slightly so. 
The degree of development of the gizzard varies in the two or 
three specimens dissected. In the first, though of moderate size, 
it was soft, thin-walled and vertically flattened,—v.e. in consider- 
able degree rudimentary; in a second the wall was of moderate 
thickness, though the organ was still flattened dorso-ventrally; in 
a third the gizzard was well developed and fairly firm, and cylin- 
drical in shape. The last-mentioned specimen would have been 
passed without comment in an ordinary way; but the firmness of 
the gizzard was in part deceptive, as on opening it it was found to 
be full of earth. The gizzard is contained in segment vii; in the 
last instance it extended also into the hinder part of vi. 
There are no calcareous glands. ‘The intestine begins in seg- 
ment xv. 
The last heart is in xi. 
Testes and funnels are present in segments x and xi (testes 
not identified in xi). 
The vesiculae seminales are four pairs, in segments ix to xil. 
Those in ix, on the anterior face of septum g/I0, are large and 
smooth ; those in x, on the anterior face of 10/1I are smaller, and 
only slightly cut up into lobes; those in xi, on the posterior face 
of 10/11, are of the same size as the last, regularly ovoid and not 
lobed; the last pair, attached to the posterior surface of I1/I2, are 
large, lobed and meet each other dorsally above the alimentary 
canal. 
The ovaries occupy their usual position. Ovisacs are present 
in segment xiv; they were much flattened against the posterior 
face of septum 13/14 (being empty), but were of considerable ver- 
tical and transverse extent. 
The spermathecae are situated in segments xiv and xv. They 
are small subspherical or somewhat irregular sacs, each with a 
short thin duct as a stalk, and without diverticula. The duct runs 
forwards towards the anterior boundary of the segment, and there- 
fore debouches into the groove 13/14 or 14/15 as the case may be; 
at least the attachment to the parietes is nearer the anterior than 
the posterior septum of the segment. In number there are either 
three or four on each side in each segment,—three in both seg- 
ments on the right side, four in the anterior and three in the pos- 
terior on the left side. The two externally placed sacs are in line 
