  The Fornax Spectroscopic Survey is a large optical spectroscopic survey of
ALL 14,000 objects with 16.5<Bj<19.7 in a 12 sq.deg area of sky centered on the
Fornax Cluster. We are using the 400-fibre Two Degree Field spectrograph on the
Anglo-Australian Telescope: the multiplex advantage of this system allows us to
observe objects conventionally classified as `stars' as well as `galaxies'.
This is the only way to minimise selection effects caused by image
classification or assessing cluster membership.
  In this paper we present the first measurements of low surface brightness
(LSB) galaxies we have detected both in the Fornax Cluster and among the
background field galaxies. The new cluster members include some very low
luminosity (M_B approx -11.5 mag) dwarf ellipticals, whereas the background LSB
galaxies are luminous (-19.6<M_B<-17.0 mag) disk-like galaxies.
