330 PROCEEDINGS: BOSTON SOCIETY NATURAL HISTORY. 
formerly separate ovaries— one from each side of the uterus — this 
would be the region of their fusion, but my preparations show no 
trace of such a process. 
The condition just described is very similar to that figured by 
Lang (’ 94 , p. 551, fig. 376), for Trombidium on the authority of 
Henking. In that case, how¬ 
ever, the vagina opens poste- 
riorlv and the oviducts are 
shown connecting directly 
with the uterus. 
The shape of the ovary 
just described is shown by 
diagram in text figure A. 
This is drawn as seen from 
the dorsal side with the re- 
ceptaculum seminis indicated 
below the uterus and open¬ 
ings into the uterus for the 
ducts of the shell glands. 
A diagrammatic side view 
is shown in text figure B. 
This brings out the relation 
« 
of the receptaculum to the 
oviduct, uterus, and shell 
glands. As the eggs ripen 
they pass from the ovary 
into its central cavity, from 
there through the oviducts 
to the receptaculum seminis 
where they are fertilized, and thence to the uterus. There the shell 
glands are enabled to furnish their secretion and the eggs are stored 
to wait the time of deposition. The eggs are usually laid in a clus¬ 
ter and this cluster may be a mass larger than the emptied body of 
the female which produced it. 
The tubular condition of the ovary in section with one or at most 
two layers of germinal cells is shown in fig. 21 (pi. 21), which is a 
section across the right ovary ( oa . dx .), the lumen of the ovary indi¬ 
cated (lu. oa .), and the eggs (ov.), with their especially large nuclei. 
Fig. 22 (pi. 22) shows how the gravid female becomes filled with 
Sen. To re.. 
