Dear Loni and Henk,
Thanks much for the info. I do recall that copepod parasites of fish are
sometimes referred to as "sea lice"", but I was pretty sure those didn't
bother people. I didn't know larval jellyfish are also tagged with that
name. Thanks for the website. I also found one myself, based on Joni's
information:
http://www.fau.edu/safe/sea-lice.html
Paul M.