| metacercariae of diplostomum spathaceum in the eyes of fishes from yellowstone lake, wyoming. | fish were collected from yellowstone lake, wyoming (usa). metacercariae of diplostomum spathaceum was found in the lens of 11 of 12 longnose suckers (catostomus catostomus). the mean number of metacercariae per sucker was 59 and the average age of the fish was 11.6 yr. there was no correlation between age and intensity of parasites (r = 0.24). of 10 cutthroat trout (salmo clarki) examined, there were metacercariae present in six. the metacercariae were found outside of the lens tissue in the tro ... | 1989 | 2915395 |