According to Flora of Australia, Vol 11, there are 955 species of acacia in Australia, thereof

in subgenus 1 Acacia:
New combinations in the genus Vachellia from Australia
have been made in 2006 by Kodela and Wilson (in telopea)
see:
http://www.rbgsyd.nsw.gov.au/information_about_plants/Scientific_publications/telopea

V. bidwillii
V. clarksoniana
V. douglasica
V. pachyphloia
V. pallidifolia
V suberosa
V. sutherlandii
V. valida
plus: A. nilotica
         V. farnesiana

in subgenus 2 Aculeiferum

• A. albizioides
  A. angustissima (naturalised)
  A. catechu
  A. pennata
  A. sinuata (naturalised)

all the other 942 in subgenus 3 Phyllodineae

These species will now be called Acacia (2006) and form a genus of its own with A. pennata being the new type specimen.