$ find /opt/X11R6/lib/X11/fonts -name 'fonts.alias' -print
/opt/X11R6/lib/X11/fonts/100dpi/fonts.alias
/opt/X11R6/lib/X11/fonts/75dpi/fonts.alias
/opt/X11R6/lib/X11/fonts/misc/fonts.alias

and in /opt/X11R6/lib/X11/fonts/misc/fonts.alias

fixed        -misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso8859-1
variable     -*-helvetica-bold-r-normal-*-*-120-*-*-*-*-iso8859-1
5x7          -misc-fixed-medium-r-normal--7-70-75-75-c-50-iso8859-1
5x8          -misc-fixed-medium-r-normal--8-80-75-75-c-50-iso646.1991-irv
6x9          -misc-fixed-medium-r-normal--9-90-75-75-c-60-iso646.1991-irv
6x10         -misc-fixed-medium-r-normal--10-100-75-75-c-60-iso8859-1
6x12         -misc-fixed-medium-r-semicondensed--12-110-75-75-c-60-iso646.1991-irv
6x13         -misc-fixed-medium-r-semicondensed--13-120-75-75-c-60-iso8859-1
6x13bold     -misc-fixed-bold-r-semicondensed--13-120-75-75-c-60-iso8859-1
7x13         -misc-fixed-medium-r-normal--13-120-75-75-c-70-iso8859-1
7x13bold     -misc-fixed-bold-r-normal--13-120-75-75-c-70-iso8859-1
7x14         -misc-fixed-medium-r-normal--14-130-75-75-c-70-iso8859-1
7x14bold     -misc-fixed-bold-r-normal--14-130-75-75-c-70-iso8859-1
8x13         -misc-fixed-medium-r-normal--13-120-75-75-c-80-iso8859-1
8x13bold     -misc-fixed-bold-r-normal--13-120-75-75-c-80-iso8859-1
8x16         -sony-fixed-medium-r-normal--16-120-100-100-c-80-iso8859-1
9x15         -misc-fixed-medium-r-normal--15-140-75-75-c-90-iso8859-1
9x15bold     -misc-fixed-bold-r-normal--15-140-75-75-c-90-iso8859-1
10x20        -misc-fixed-medium-r-normal--20-200-75-75-c-100-iso8859-1
12x24        -sony-fixed-medium-r-normal--24-170-100-100-c-120-iso8859-1
nil2         -misc-nil-medium-r-normal--2-20-75-75-c-10-misc-fontspecific

$ ff /usr/openwin/lib/X11/fonts fonts.alias
/usr/openwin/lib/X11/fonts/TrueType/fonts.alias
/usr/openwin/lib/X11/fonts/100dpi/fonts.alias
/usr/openwin/lib/X11/fonts/75dpi/fonts.alias
/usr/openwin/lib/X11/fonts/F3/fonts.alias
/usr/openwin/lib/X11/fonts/F3bitmaps/fonts.alias
/usr/openwin/lib/X11/fonts/Speedo/fonts.alias
/usr/openwin/lib/X11/fonts/Type1/fonts.alias
/usr/openwin/lib/X11/fonts/misc/fonts.alias
/usr/openwin/lib/X11/fonts/TTbitmaps/fonts.alias