Look at the xlsfonts man page:
xlsfonts -display host:dpy
^^^^^^^^
Fortunate1ZE972270361366933ly the output is on stdout so you can look at any systems
fonts.
xlsfonts doesn't list filenames, just fonts.
Hmm, I don't exactly understand, what smlunatic means, since - as you
stated - xlsfonts doesn't list filenames.
I'd look for the xfs config file, and see what directories it reads.
Mine is /etc/X11/fs/config .
The 'catalogue' option specifies the directories where the fonts are.
I'd then traverse the directories' fonts.dir files, and look for the
font in question.
--polemon