216 MR. F. E. BEDDARD ON | Mar. 3, 
the sperm-sacs and the terminal apparatus, which opens on to the 
exterior in the xviith segment. The sperm-sacs are in segments 
x1. and xil., and occupy a considerable space in those segments. 
They are simple, solid, sac-shaped structures, not racemose in form. 
The spermiducal glands are paired. Hach of them (see text-fig. 
37, p. 215) is shortish and rather thick, tapering somewhat towards 
the tip. The last third of the gland is bent forward and lies above, 
parallel to and in contact with the anterior section of the gland. 
This arrangement occurred on both sides of the body. Hach 
gland is sharply constricted at its opening into a large median 
bursa propulsoria lying below the ventral nerve-cord. This latter 
sac, however, presents obvious signs of having been produced by 
a fusion of two sacs; for posteriorly it is completely double. It 
is into each of these posterior lobes that the spermiducal glands 
open. 
My description of the female apparatus must unfortunately be 
incomplete. The organs, as already stated, are paired. The 
spermathece, near to where they open, have very thick muscular 
walls; and this region at least is enveloped in a ceelomic sac, as 1s 
the base of the spermatheca in the species of Pareudrilus (?), with 
which I deal later in the present communication (see below). 
How this ccelomic sac is otherwise related to the spermatheca 
and to the receptaculum ovorum I am unable to state. The latter 
organ presents no noteworthy peculiarities, and the oviduct leads 
from it to the exterior, on the fourteenth segment. 
On «a Species of PAREUDRILUS. 
I believe that a number of individuals belonging to this genus, 
which were collected by Mr. Crossland, may represent a new 
species. But I am unable to speak with absolute certainty on the 
matter, since the material was not in good order for investigation, 
and since the specimens of P. papillata examined by Michaelsen * 
were likewise much softened by evaporation of the alcohol ; if the 
worms upon which I report here are not referable to P. papillata, 
then the species is unquestionably new. 
But whether the species be new or not, I have something to add 
to what is known about the structure of this genus. 
The dimensions of my specimens agree apparently with those 
given by Michaelsen for his species. The length wassome 100 mm. 
and the diameter about 3 mm. The dark purple colour, turning 
to yellow below and in the clitellar region, is like that of my 
Pareudrilus stagnalis. The setz are closely paired, and I observed 
a tendency in the neighbourhood of the genital pores for one seta 
of a pair to be lost or not developed. I do not refer to a mere 
dropping out ; on examining the cuticle, occasionally no pore was 
to be noticed in the place where such a pore (through which the 
seta is extruded) should be. The irregularity of this state of affairs 
1 “Die Regenwtirmer Ost-Afrikas,” in Deutsch-Ost-Afrika, p. 11. 
