150 JOURNAL OF ENTOMOLOGY AND ZOOLOGY 
SUMMARY 
1. The muscular system consists of two parts, a layer lining 
the body cavity, and strands passing through the connective 
tissue to the foot, papille, and mantle. 
2. The liver communicates with the stomach by numerous 
large openings. The whole alimentary canal is ciliated. 
3. The kidney is a large sac, with many ramifications, lined 
with clear, cubical cells, on a very thin basement membrane. 
4. The cerebro-pleural ganglia appear fused in a mass 
above, but below and in section show their separate origin. 
There is a small visceral ganglion on the left side, which sends 
off one nerve; and a larger one on the right, which sends off 
three. The gastro-csophageal ganglia are completely fused 
with the bueeal. The ganglia of the gastro-heptic accessory 
plexus are very small, those of the other plexuses are fused 
into a few large ganglia. 
5. The blood from the posterior aorta passes to the liver 
mass and thence to the branchiw before returning to the heart. 
The blood from the anterior aorta passes back through the 
lateral sinuses, being aeriated through the skin and especially 
in the papille. 
6. The reproductive organs contain numerous glands. The 
male organs have a large, thin-walled accessory gland, lined 
with cells that appear empty in the sections, and a smaller 
gland, lined with tall cells full of globules of secretion material. 
The oviduct bears a large gland, the cells of which are swollen 
and full of homogeneous secretion; and within that a smaller 
gland with dark-staining granular cells. There are a sperma- 
totheca and spermatocyst. 
‘ 
