GLANDS OF AUSTRALIAN EARTIWORMS. 119 
Sperm-sacs are conspicuous globular bodies in segments 9 
(posteriorly) and 11 and 12 (anteriorly). 
The spermiducal glands vary in position, and to a certain 
extent in shape. In one individual each was distinctly tubular, 
occupying segments 18 and 19, the wider portion in segment 
19 being coiled. In this also the duct was very short, and com- 
pletely embedded in the body-wall. In a second individual, 
the gland was much wider in proportion to its length, and 
appeared at first as a single flat elongated body in segments 18, 
19, and 20, the duct forming a double-U curve. In the third speci- 
men (fig. 10) the gland appears as a wide flat tube in segments 
18, 19, 20 and 21; slightly curved in the first and last segments. 
The duct in this case was very short. The surfaces of the glands 
in the first and second individuals were quite smooth, apart from 
erooves incidental to curving. But in the third individual, 
the gland clearly showed an irregular division of the surface 
into areas exactly similar to those on the gland of MW. Frenchi. 
The two vasa deferentia of each side enter the gland-duct on 
- opposite sides at half its length from the exterior. The external 
opening is situated on a very stronyly-marked papilla. In this 
papilla are situated two distinct sets of glands connected with the 
external openings. 
21. M. nusra* (Spencer). 
Testes and rosettes, two pairs in segments 10 and 11. 
Sperm-sacs in segments 9 (posteriorly) and 12 and 14 
(anteriorly). 
Spermiducal glands bilobed, lying entirely in segment 18, the 
posterior wall of which is pushed back. The spermiducal duct 
is long and coils slightly as it leaves the gland. The two vasa 
deferentia of each side unite about segment 13 to form one on 
each side, which runs up the wall of the spermiducal duct 
and enters it just inside the gland. 
22. M. minor fT (Spencer). 
Segments 10 and 11 are occupied by what appear to be large 
sperm-sacs filled with masses of developing sperm. At the base 
of those near the nerve-cord on each side is a small spherical, 
* Proc. R. 8. Vict. 1892, p. 8: Pericheta rubra (Spencer). Beddard, /oc. cit. 
p. 379. 
t “Descriptions of Australian Earthworms,” Pt.1. Proc. R. 8. Vict. vol. xiii. 
pt. 1. 
