Earlier comment on this disease¹ mentions that the parasite occurs in New South Wales on the southern tablelands, probably elsewhere; and that as high as thirty per cent. mortality has occurred in yearling calves on the south coast of that State from infestation with paramphistomes concurrent with Bunostomum phlebotomum. The following belated record of apparent mortality in adult inland cattle from paramphistomiasis alone is given for what it is worth.
Somewhere about 1938 post-mortem examination was made of a Jersey cow, aged about five years and in good condition, within the irrigation area about mile north of Hay; the only obvious abnormality being a very heavy infestation of the reticulum with P. cervi, those fluke unable to get lodging on the walls being loose in the lumen, or whatever the cavity in a roughly spherical viscus is called. About a week or so later the same condition was diagnosed in a similar cow of the same owner, the animal being extremely restless and apparently suffering considerable abdominal discomfort. One ounce of thymol was suitably administered by mouth and, after passage of about a pint of dead fluke, recovery and long-after survival was uneventful.
(1) Seddon, H. R. (1950): Commonw. of Aust, Dept. of Health Service Publication (Div. of Vet. Hyg. No. 5) 34.