114 
FRANK E. BEDDARD. 
more than a single pair of nephridial orifices to each segment. 
It is probably also the case in other parts of the body, but I 
am not able to give any accurate description of the arrange- 
ment of the external pores. 
I am inclined to think that in all Earthworms when the 
nephridia have the characters recorded in this species, that is 
to say, where they consist of abundant scattered tufts of 
minute tubules, it will be discovered that the external apertures 
agree with those of Acanthodrilus multiporus, Dicho- 
gaster, and the present species (Beddard 5). 
§ Alimentary Tract. — The gizzard is situated in the 
sixth and seventh segments. As is generally the case when this 
organ occupies two segments, the mesentery that should 
separate these segments is absent, or at most represented by 
rudiments. In the present species, as has been already said 
(p. 112), there are two muscular bands of a strap-like form by 
which the gizzard is attached to the body wall. 
This species has a single pair of calciferous glands, which 
are situated in the twelfth segment (fig. 8, ca.). 
The alimentary canal presents only one other feature of 
interest, and that is the presence of intestinal glands already 
recorded in T. orientalis. 
The glands are, however, not confined to this genus, since 
they exist in much greater numbers in Megascolex, and 
have also been described by Horst in Acanthodrilus, and by 
myself in Eudrilus. 
In Typhseus the glands agree in their minute structure 
(PI. XII, fig. 2) with those of Megascolex, but differ 
anatomically in the fact that the two glands of each pair 
become fused together on the middle dorsal line of the intes- 
tine, and also in the fact that the glands of consecutive 
segments are connected. The minute structure bears a very 
close resemblance to that of the calciferous glands. 
§ Reproductive System. — This worm differs from the 
greater number of Lumbricidae in the possession of only a 
single pair of testes and a single pair of vesiculae seminales 
corresponding to them. The vesiculae seminales (which are of 
