No. 416.] THE TEXAN KQNENIA. 62 
r3 9 
receptaculum seminis of small crustacea." In all of my sec- 
tions I have never been able to see any sign of spermatozoa in 
the vesicle, which is always full of a non-granular, gelatinous 
secretion. Just posterior to the outlet of the oviducts, and 
between the two lateral appendages of this region, is the 
outlet of the small flask-shaped receptaculum seminis. The 
accessory glands are small and insignificant, and in the lateral 
anterior portion of the abdomen they empty into the vagina. 
The ovary, which fills almost the entire lower portion of 
the abdomen, does not show its: primitive paired condition. 
Although the muscular walls of the pouch-like ovary are 
bulged out with what appear to be cells, only a few of these 
become the eggs, while the remaining seem to be the nurse 
cells, and are consumed by the growing ova, which early in the 
spring lie in the upper portion of the organ. Later in the 
season a few of the eggs fill the entire ovary, while most of 
the small bodies have disappeared, and in their place a few oil 
drops remain. These oil drops are seen at this stage in the 
lumen of the oviducts. Fig. 5 is, for the most part, a diagram- 
matic sagittal section through a female Konenia. The ovary, 
however, is an exact camera drawing which shows the propor- 
tion between the true eggs and the food bodies, and their 
corresponding position in the ovary of an animal taken early 
in the spring. In Koenenia the egg is evidently not fertilized 
until it reaches the vagina, and all the food that it receives 
before its fertilization is a product of the ovary and oviduct. 
The latter must also necessarily furnish the membrane of the 
egg. Just as there is a pair of dorso-ventral muscles for each 
pair of lung sacs, there is also a corresponding pair for the 
reproductive appendages of each segment. These, together 
with special muscles, undoubtedly cause à slight protrusion 
and retraction of these organs. : 
In the male the primitive paired condition of the generative 
organs is retained. The testes consist of two equally swollen 
tubes, beginning in the seventh or eighth segment and extend- 
ing along the floor of the abdomen, to be continued anteriorly 
into the vas deferens of each side. The vasa deferentia are 
very much coiled, and fill — at certain times of the year — all 
