[ 13 ] 
parasite it probably also occurred in numbers elsewhere. The new 
Schistostoma, Schistostoma Cattoi (Blanchard) discovered in the body of a 
Chinaman in Singapore has not been found here. 
Cestodes. 
No tape-worms were found at any post-mortem examination or observed 
during life. This is somewhat remarkable considering the fondness of the 
Chinese for pork. The care exercised by the Chinese in the feeding of pigs 
is probably their safeguard. 
In one buffalo calf observed by Mr. Ford segments of a large tape-worm, 
probably Tania Expansa, were passed. 
In dogs, Tania Cucumerina (Dipylidium Caninum) is common. One 
incomplete specimen of a Bothriocephalus was received by me from Mr. 
Ford. 1 he segments were nearly mature and crowded with ova. There 
was no head. The yellow colour and the size, 4 to 5 mm. in breadth and 
1 to 1.5 mm. in length, is compatible with the Canine Bothriocephalus fuscus* 
1 he ova were 50 u. by 32 u. in breadth. The specimen was not of Bothrioce¬ 
phalus latus. I am informed that dogs are often fed on fish. 
No Echinococci have been found in the dogs here. The sheep 
frequently harbour Echinococci cysts, but as the sheep are imported and 
carefully kept there is little danger of the spread of this pest. 
One case of Hydatid Cyst was found at a post-mortem examination of 
a Chinaman. It was probably imported though the man had been some 
years in the country. 
Rats in Singapore as shown by Dr. Finlayson are often infested with 
cystic tumours of the liver containing immature tape-worms. These cystic 
taenia differ from echinococcus in the enormous development of the neck, 
which in some instances was 60 mm. in length. Probably these worms are 
Cysticevcus Fasciolata cystic or embryonic stage of taenia crassicollis of the 
cat. The cysts are thick walled about inch in diameter and imbedded in 
the substance of the liver. The embryo contained in the cyst has the usual 
cephalic armature of a double row of hooklets the internal and larger are 
the less numerous. The total number seems to vary from 28 to 32. These 
circles of hooklets are situated at the apex of the conical head, and behind 
them are four oval suckers. The widest part of the worm is about 3 mm. 
from the head where they are some 1.75 mm. in breadth. Behind this point 
the worm slowly tapers and soon becomes thin, much flattened, and 
apparently consists of little but fibrous ribbon. The part behind the head 
is transversely wrinkled but there is no true segmentation. 
In the hepatic interlobular spaces of one of these rats ova were found 
in large numbers. These ova measure .6 by .3 mm., and at each end have 
an opening somewhat like that in the ovum of a Tricocephalus. The egg 
coating is thick and in two layers which are closely applied to each other 
the outer is clear and transparent with coarse transverse marking and the 
inner more opaque, brown and uniform. The egg contents were shrunken 
and show no trace of definite structure. No other organs were sent to me. 
The eggs have no resemblance to those found in man by Dr. Catto in a 
similar position in the liver as well as in other organs in the case of 
infection by the Schistostoma recently described by him. 
