L 34 ] 
.The head of this worm is situated in a minute pool of yellowish viscid 
iquid, in which embryos, it any, may be found. It is yellowish in colour, 
find since the whole body is firmly bound down with the exception of the 
first few millimeters at the head end, its movements are naturally confined to 
this part and they are withal slow. 
Lower down where the serpiginous tracts are seen, its body is much 
bent many times on itself and consequently distorted, the whole arrange¬ 
ment producing the appearance of those beaded wavy lines one notices 
from the interior of the aorta. 
So far the whole length of the worm has not been traced out on account 
of the firmness with which it is bound down to the adjoining structure. 
Hence I have not been able to find the tail end or the exit of the 
alimentary canal. 
Digestive System. 
The mouth is not surmounted by any obvious structure. In the fresh 
state it is very active, moving along with the oesophagus both from before 
backwards and from side to side. 4 he worm is narrowest in this part 
of its body. v 
The oesophagus extending from the mouth to the stomach is a narrow 
structure and measures .58 to .62 mm. in length. It is thin-walled and 
presents a striking contrast to the thick muscular stomach and intestine 
following it. No glands are seen opening into it. There is only a 
\ ery faint differentiation between the stomach and intestine, so that it is 
not quite evident at which point the stomach is merged into the intestine. 
I he intestine follows the wavy course of the worm along its whole length 
as far as has been traced. 1 here is no variation in the size of the gut'all 
along its course. 
Generative System. 
L diffeis very markedly from the one in the buffalo in possessing 
only two ovaries or ovarian tubes instead of four. 
The genital aperture is situated on one side of the body about 
.90 to .95 mm. from the mouth. In the first state it is not marked by any 
special papilla, but the occasional escape of ova and embryos indicates its 
exact position. In a preserved glycerine specimen the uterus with its 
contents may be seen to terminate here. 
The uterus is continued for 10 to 15 mm. before two ovarian tubes open 
into it. These are of the same diameter throughout, and are not distended 
like those met with in the buffalo. They are slender but may contain lar< r e 
numbers of ova and embryos, both encapsuled and free. 
1 hese two tubes, if traced towards the distal end, become a solid mass 
of cells. The appearance in transverse section will be described later on. 
The ova are not very different from those found in the buffalo. They 
are round or o\al, measuring from 10 by 15 u. in the youngest stage to 
20 by 40 u. in the fully developed but still encapsuled embryo. Here also 
we notice the spicules at one or both ends of the capsule surroundm" a 
hyaline protoplasm with very granular embryo. 
