I believe that it is indeed a parallel cut crystal.  It's an Epson CA-301,
just like the 16F877 guide calls for, with a 15 pF cap to ground on either
side of it.  Incidentally, I just noticed that its labeling reads
"184AP9X".  Maybe that indicates that the crystal is in fact 18.4 MHz?
(Anyone know how these things are labeled?)

Jake

P.S.  Thanks, David, for the pointer to your website.  I certainly learned
a few things!

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