The Memphis Rite and the closely related Misraim Rite were both
Masonic systems which arose in the early nineteenth century and
which feature some ninety-odd degrees. The prolixity of degrees led
to a lot of repitition (although Mackey claimed that some of the
Misraim degrees were of interest) and were difficult to sustain.
These rites were virtually extinct by the 1870's but the
esotericist John Yarker revived and combined the Rites into a new
Rite of Memphis-Misraim. In this form, it may have a continued
fringe existence even up to the present day, but its activities are
too shadowy to clearly comment on.