A NOTE ON THE PROBABILITY OF INFECTION OF

                  MAN AND DOMESTIC CARNIVORES BY ISOPARORCHIS

                                 HYPSELOBAGRI (BILLET, 1898)*

                                                    BY

                                     G. D. BHALERAO, M.Sc.,

          Helminthologist, Imperial Institute of Veterinary Research, Muktesar.

                       (Received for publication on 27th April 1932.)

                                       (With one text-figure.)

Southwell [1913] obtained these flukes from the gas-bladder of the siluroid fish,
Wallago attu, and described them as Isoparorchis trisimilitubis; but Ejsmont [1932]
has recently proved it to be a synonym of I. hypselobagri (Billet, 1898). Previously
to this, in 1910, Captain Parker had obtained immature forms of this fluke from the
muscles of the siluroid fish, Barbus tor. In 1921, the writer with his professor, Dr.
W. N. F. Woodland, had obtained at Allahabad these parasites from the gas-bladder
of the fish, Wallago attu. Chandler [1926] recovered some large flukes in Calcutta
from the stools of a human patient who was treated with an anthelmintic and these
were identified by the writer as Isoparorchis trisimilitubis. Faust [1929] also record-
ed the presence of this parasite in man in Hunan Province, China. In 1928 I
obtained at Nagpur some immature forms of this parasite from the muscles lining
the coelomic cavity of the siluroid fish, Ophiocephalus striatus. Another very
interesting case of the occurrence of this parasite is that it was found in the stomach
of a crocodile shot in Assam, which had devoured some siluroid fish.

It is quite evident from the foregoing remarks that the parasite is a very
common scourge of certain siluroid fishes, especially in the orient, and any animal
eating the infected siluroid fish is exposed to infection with this fluke. It is there-
fore suggested that a man should be careful to cook his fish properly before eating
it, and further he should prevent his domestic carnivores, such as dogs and cats,
from visiting rivers and other places in which infected fishes may be present.

* A paper read before the Medical and Veterinary Section of the 18th Indian Science Congress,
                                                          Nagpur, 1932.

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