246 FRANK E. BEDDARD. 
to the exits of the ducts of a mass of glandular cells which 
form the outer covering of the organ. As in Moniligaster, 
the atrium is invested externally by a mass of pear-shaped 
cells, which are loosely compacted into separate masses. 
The structure of the atrium, therefore, is like that of Moni- 
ligaster alone among “earthworms.” In fact, it only differs 
from the atrium in that genus in its greater length. The 
external aperture of the atrium is placed upon a fan-shaped 
outgrowth of the body wall, which in all probability serves as 
a penis. Whether or not these penes are in- and evaginable I 
am unable to say. They were extruded in both the specimens 
at my disposal. I should imagine that they are protrusible. 
The ovaries are in the 13th segment.! They are attached 
as usual to the front wall of this segment. From the 13th to 
about the 20th, there are ova and masses of ovarian cells appa- 
rently lying loose within the body cavity. In the most ante- 
rior of the segments in question, there are only egg masses 
consisting of immature ova surrounded by groups of small 
cells, but-in the segments situated further back, there were 
only ripe ova visible. These ova are of special interest on 
account of their large size; they are also, like the ova of the 
aquatic Oligocheta, generally crowded with yolk. The ova 
are fully as large as those of such a genus as Rhynchelmis. 
In longitudinal sections of the body the ova reached across 
nearly from one side of the body to the other. 
I could find no egg-sacs. There is a single pair of oviducts 
which open into the 13th segment. The tube remains very 
wide after it has entered the 14th segment, and has a much 
folded lumen; it narrows rapidly before the external pore. 
The spermatothece are present to the number of a single 
pair, which are in the 8th segment. They are oval pouches 
without any diverticula, and with perhaps unusually thick 
1 The septum dividing Segments x111/xrv was largely deficient, and masses 
of young egg-cells and non-differentiated germinal cells passed into the 14th 
from the 13th segment. I should not like to be certain that these were not 
developed in situ; younger specimens are required to clear up the matter. 
In the meantime there is only one pair of oviducts. 
