Chamaeleon (the chameleon) is a minor southern constellation that was included in Johann Bayer's Uranometria[?], but may have been in use somewhat earlier.
... has a total area of 11.3 km² (4.4 mi²). 10.6 km² (4.1 mi²) of it is land and 0.6 km² (0.2 mi²) of it is water. The total area is 5.73% ...