I think you'll have to be a little more specific, since many, many species of chameleon originate from madagascar, and I'm not aware of a species with this common name. Do you have the scientific name, or another common name?
I'd also suggest you read the book; "Chameleons: everything about purchase, care, nutrition, and breeding" By Richard D. Bartlett and Patricia Bartlett. It's very informative and easy to read.
