CALIFORNIA EUDRILID®. 51 
of the chambers stand also in connection with each other as at 84 sp. b. and 83. 
In these chambers are stored the spermballs proper, one in each, rarely oceupy- 
ing the whole space of the chamber, but leaving considerable of the lacunary room 
empty, it never containing any free spermatozoa, only agglomerations or spermballs. 
These spermballs may also be seen as white opaque globules from the outside of the 
spermatheca as represented in figs. 81 A and Lb, sp. b. 
Testes (figs. 94, 95, 96.) There are two pair of testes, one in somite x, one in 
xi, as usual post-septal. The anterior testes are enclosed in the sperm-sac, the pos- 
terior ones are generally free. Cross-sections show the testes to be deeply multilobed, 
with the lobes spreading. As regard the enclosing of the anterior testes it may be 
remarked that it is more or less complete, evidently depending on the size of the 
sperm-sac. In some specimens the testes were entirely enclosed, in others only the 
posterior apex was invested in the sperm-sac. In most specimens the testes were 
found pressed close to the body-wall and projecting backwards, the point of adherence 
to the anterior septum being immediately above and adjoining the ciliated funnel of 
the nephridium in line with the ventral sete. 
Sperm-sacs. ‘There are three sperm-sacs, more or less but generally paired in 
somites x, xi and xii, the one in the latter somite being much more lobed than the 
anterior ones, and more frequently paired. The two anterior sperm-sacs are much 
the largest (fig. 96 and 97). They fill the whole somites, are not always paired, but 
the lobes connect all along the dorsal body-wall. The anterior sac closely inyests the 
testes and ciliated rosettes in x and furthermore often encloses the ventral ganglion (fig. 
96 and 97). The sperm-sae in xi is also often closed on the dorsal side, but it does not 
invest the testes nor the sperm funnels of that somite (fig. 98). The sperm-sac in xii 
differs from the other by being deeply lobed in the plane of the trabecule which are 
arranged ina fan-like shape from the alimentary canal. This sperm-sac which is 
seldom paired, does not extend below the alimentary canal as the anterior ones do, 
but so to say rests entirely on the intestine (figs. 86 and 99). The anterior sperm-sacs 
are also traversed by numerous trabeculee, which however are irregularly arranged 
(fig. 100). The sperm-saes are frequently infested with parasitic coceidixe of round 
shape and with from one to three germ cells (fig. 100, coc.) In size the sperm-saes 
are so large that they push far backwards, the one pair covering the other, the 
whole mass often reaching as far back as to touch the prostate, thus entirely covering 
the ovary and oviducts. This is especially evident in transverse sections when the 
ovary, oviduct and the three sperm-sacs may be seen at once. 
The ovary is, as usual, found in xiii and offers no great peculiarities. It is 
generally deeply lobed, and in cross-section shows the same projecting lobes as the 
testes. ; 
The oviduct is rather thin and characterized by a thick and long upper lip 
(fig. 103 u. 7), which generally is bent to one side. In one instance the upper lip 
was forked (as in fig. 103, c.). The muscle attaching the upper part of the oviduct to 
the body-wall is unusually strong (fig. 103, m. s.). 
