Andrew et al.,

>as i remember largest leech ever found lives on whales! its about 25 cm
(maybe more).

Light dawns. In his decidedly pessimistic eco-novel "The End of the Dream"
(1972), Philip Wylie described how shoals of big leeches, deprived of their
usual cetacean hosts, erupted onto the land to devour the next best thing:
humans. (They got as far up-river as Cincinnati, Art. The city of Flying
Pigs was devoured in its sleep.) For years, I thought he made them up.
Wylie's point was that the ecologic imbalances that people create can
eventually destroy us without warning. What made his novel particularly
engaging was how he described one disaster after another while the
politicians and general population never learned a thing.

Returning to the subject: What kinds of parasites attack mollusks?

Cheers,
Andrew

Andrew K. Rindsberg
Geological Survey of Alabama

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