page 7 of the "46 page abridged version"

Note:
This data sheet documents only the
devices’ features and specifications that are
in addition to the features and specifications
of the PIC18F2455/2550/4455/4550
devices. For information on the features
and specifications shared by
the PIC18F2458/2553/4458/4553 and
PIC18F2455/2550/4455/4550 devices,
see
the “PIC18F2455/2550/4455/4550