Stratiomys chamaeleon was created in 1758.

Black-headed Dwarf Chamaeleon was created in 1865.

When it is not in front of an object that has no color.

It does vary from type to type of different chamaeleons however the binomial name for the animal referred to as the "Common Chamaeleon" is:

'Chamaeleo Chamaeleon'

Furthermore the scientific classification of the common chamaeleon is:

Kingdom: Animalia

Phylum: Chordata

Class: Reptilia

Order: Squamata

Suborder: Sauria

Family: Chamaeleonidae

Genus: Chamaeleo

Chamaeleon is the only other synonym... but its basically the same. :-)