58 
ON THE ANATOMY OF MEGASCOLIDES AUSTRALIS, 
MUSC CLYC 
musc long 
PLATE 6. 
a bridge of connective tissue, across which passes the vas 
deferens. 
b intra-cellular part of the nephridial funnel. 
bv blood-vessel. 
c ep ecelomic epithelium. 
Gi connective tissue. 
d ventral longitudinal duct connecting the various nephridia. 
ep epidermis 
ep’ ep” special modifications of the epidermie cells at the external 
opening of the nephridia. 
ept columnar ciliated cells lining the oviduct. 
int internal surface of the prostate. 
m muscle fibres surrounding the nephridial funnel (Fig. 26). 
Fibres forming a sphincter at the external nephridial 
opening (Fig. 28). . 
m oO external opening of male organs. 
circular and longitudinal layer of muscle fibres. 
neph small nephridia. 
neph 1 large nephridia. 
neph 1 o internal opening of large nephridium. 
neph o external opening of large nephridium. 
n nuclei of cells forming nephridial duct. 
We special nuclei where the duct enters the epidermis. 
ov oviduct. 
pig pigment masses. 
br prostate gland. 
sept septum. 
sp’ sp™ cells forming the inner and outer parts of the walls of 
the prostate gland. 
vd .. vas deferens. 
vdo,vdo’... internal openings of the vasa deferentia. 
v0 opening of vasa deferentia into prostate. 
123 the three rows of cells which line the entrance to the 
nephridial funnel. 
Fig. 26.—Section through the nephridial funnel. The upper lip overhangs the 
lower. The duct, after passing through the septum (seft.), enlarges, being still 1 
intra-cellular (b.) At the open end are three rows of cells (1, 2, 3,) increasing in size 
towards the outermost, which line the margin of the funnel. These bear long cilia, 
