208 Bilharziosis in South Africa 
To Table III, I may add that I found the terminal spined ova in the 
following organs: 
(1) 
Bladder. 
( 5 ) 
(2) 
Ureters. 
(6) 
(3) 
Kidneys. 
0) 
(4) 
Rectum. 
(8) 
Veins of foregoing Organs. 
Prostate Gland. 
Mesenteric Gland. 
Lungs. 
I have not examined the heart or pancreas for ova, and on only two 
or three occasions, the spleen substance. I examined the urethra on 
several occasions, always with negative results. 
The lateral spined ova I found principally in the rectum and 
occasionally a few in the liver. It is interesting to note that I have 
not found the terminal spined ova in this last organ, though I expected 
to do so. 
The above facts seem to point to a wide area of location of the 
terminal spined ovum, but a much more restricted field for lateral 
spined ova. 
The Ova. 
The following is a rough description of the two forms of ova, as I 
have seen them, which may be of interest, though it does not enter into 
minute details, 
Terminal Spined Ova. 
These may be observed in three forms:— 
(a) The light coloured animated ovum with the clear well 
marked contents. 
( b ) The ovum with homogeneous black contents, which are 
apparently calcified, evidently dead and incapable of doing any more 
damage to the tissues than coarse pigment granules would do. 
(c) Shells of ova from which the miracidia or embryos have 
escaped. 
Those ova found outside the urinary system or intestines were, to 
the best of my recollection, all of them in the calcified condition 
described under heading (6). 
Lateral Spined Ova. 
These may also be seen in several forms:— 
(a) The light coloured animated ovum with the prominent 
lateral spine. 
