1903. ] NEW SPECIES OF EARTHWORMS. 217 
does not incline me to describe in detail the cases observed, which 
were, moreover, not many. I can eonfirm Michaelsen’s statement 
that there are no genital or any specially modified sete in any 
region of the body. 
In the external sexual characters I find some little differences 
from the description of Michaelsen, and it is partly on this account 
that I am disposed to regard my specimens as belonging to a new 
species. The clitellum is perhaps a little more extensive, xili.— 
Xvill. or even xix.; but that is a slight difference. I find that the 
pores of the pair ed spermathece are situated definitely on the 
border-line of segments xiv./xv. and not upon xiv. They are, 
however, in the line of the ventral couple of sete. On the other 
hand, I agree with Michaelsen in placing the pores of the spermi- 
ducal glands upon segment xvii. just in front of the ventral sete 
of that segment. As to the location of the genital papille, Dr. 
Michaelsen and I have not found the same conditions in the 
specimens studied. In my specimens, the constant rule appears to 
be the presence of two pairs of papille of which the most anterior 
are on segment xvii., just behind the ventral setee but on a line 
with the ene most setze of the couple ; on the following segment, 
the xviith, there is a precisely similar pair also behind the ventral 
sete, but in this case corresponding to the innermost seta of the 
couple. 
The papille are fairly conspicuous, and are to be noted upon the 
cuticle when stripped off. The area is slightly raised and is 
studded with the mouths of large glands. Corresponding to the 
papille internally, are glands to which I shall recur in describing 
the anatomy. These papille were never absent. 
I could discover no nephridial pores; but I imagine that this 
species, like Pareudrilus stagnalis and some other Pareudrilacea, 
will turn out to possess a ramified system of nephridial end- 
tubes in the integument. In any case the nephridia, viewed 
internally, appear to be paired structures. As to the alimentary 
tract, I find a gizzard far forward, in the sixth or seventh segment, 
and I have not been able to find calciferous glands, The last 
heart is in xi. The funnels of the sperm-ducts are in x., xi. The 
two pairs of sperm-sacs, in xi., xii., are tongue-shaped. 
As to the female generative system, my observations do not 
altogether agree with “those of Michaelsen ; but it is no disparage- 
ment to that excellent and accurate observer to suggest that the 
condition of his specimens may possibly have led him into some 
slight error. Otherwise I must place my specimens not only in a 
new species, but in a new genus. The ovary I have not been able 
to find at all. This in an Kudrilid is not of course surprising 
for as a rule the ovary disappears early, having transferred its male 
to the egg-sac. On the other hand, while it is unlikely that I 
could have missed so conspicuous an object as the large ovarian 
sac figured by Michaelsen, it is equally unlikely that he was misled 
by bulging septa or other structures into stating the presence of 
such a sac communicating with the egg-sac. It seems to me 
