The following list contains former constellations that are no longer recognized as official by the International Astronomical Union. Information about each constellation is taken from Richard Hinckley Allen's Star Names: Their Lore and Meaning and Julius Staal's The New Patterns in the Sky.
Antinous- the youth
Apis - the bee
Argo Navis - the ship of the Argonauts
Cerberus - the three-headed dog or serpent
Custos Messium - the harvest-keeper
Felis - the cat
Frederici Honores - Frederick's Glory
Globus Aerostaticus - the hot-air balloon
Lochium Funis - the log and line
Machina Electrica - the electricity generator
Malus - the ship's mast
Mons Maenalus - the mountain
Musca Borealis - the northern fly
Noctua - the owl
Officina Typographica - the printing office
Phoenicopterus - the flamingo
Psalterium Georgii - George's harp
Quadrans Muralis - the mural quadrant
River Tigris - the Tigris river
Robur Carolinum - Charles' Oak
Sceptrum Brandenburgium - the Brandenburg sceptre
Sceptrum et Manus Iustitiae - the sceptre and the hand of justice
Solarium - the sundial
Tarandus vel Rangifer- the reindeer
Taurus Poniatovii - Poniatowski's bull
Telescopium Herschelii - Herschel's telescope
Testudo - the turtle
Triangulum Minor - the lesser triangle
Turdus Solitarius - the solitary thrush
Vespa - the wasp