29 December 2009 new: Chromodoris joshi
  24 December 2009 new: Notarchus indicus
  18 December 2009 new: Phyllodesmium rudmani
  4 December 2009 new: Chromodoris hintuanensis
  20 November 2009 new: Phyllodesmium macphersonae
  11 November 2009 changed:
  Plocamopherus imperialis is now: Plocamopherus ceylonicus
  11 November 2009 changed:
  Plocamopherus imperialis is now: Plocamopherus ceylonicus
  8 November 2009 new: Dendrodoris denisoni
  20 October 2009 new: Chromodoris lochi
  18 October 2009 new: Trinchesia diversicolor
  16 October 2009 new: Phyllidia willani
  15 October 2009 replaced: Tritoniopsis elegans
  13 October 2009 new: Trinchesia diversicolor
  7 October 2009 new: Phyllidiopsis annae
  12 August 2009 new: Berthella martensi
  8 July 2009 new: Bornella hermanni
  13 June 2009 new: Aegires villosus
  11 June 2009 new: Aplysia juliana
  10 June 2009 new: Gymnodoris citrina
  10 June 2009 new: Gymnodoris citrina
  9 May 2009 new: Cadlinella ornatissima
  28 April 2009 new: Platydoris sabulosa
  20 April 2009 new: Aegires villosus