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You have a male panther chameleon. It's impossible to know his locale without knowing his geneology or import status. He is certainly older than 4 months of age- likely more like 6 months+. At four months most panthers do not have much of a rostral process, nor are they so well-coloured or as large as your guy. 4 month old panthers still have a "baby" look about them that yours lacks.
You will want to take him to the vet sooner than later, for a fecal check for parasites, and to have his mouth looked at- it does not look quite right in one of your photos.
A 6-8 month panther is not fully mature yet, and should be fed as much as they will eat daily of a variety of well gut-loaded insect prey (crickets, super worms, silkworms, hornworms, stick insects, roaches, locusts, etc). Mealworms are difficult to digest and should be fed as a treat only, if at all. Prey items should be dusted daily with phosphorus-free calcium withOUT D3, once every two weeks with a multivitamin containing prOformed vitamin A (not prEformed), and once every two weeks (alternating weeks with the multivitamin) with a phosphorus-free calcium WITH D3.
See this link for more information on gutloading and proper nutrition:
https://www.chameleonforums.com/care/food/
Regarding your enclosure:
I would just take that water dish right out. Chameleons do not drink from still water sources; they require dripping or moving water to drink from. A water dish will just get pooped in and fouled without adding any benefit to your cham. Misting him for several minutes several times a day will be a better way to keep your cham well hydrated, which is of critical importance.
See this link for more information on water and hydration:
https://www.chameleonforums.com/care/water/
Your cham will require a cage 24x24x48" in size at least; I'm not sure what your current cage's dimensions are, but the photo makes it look small. The photo also makes it look like you are using a red heat bulb- just get rid of that. There are several issues using red heat lights with chameleons- if you want more information on that, just ask. Instead, use a white light heat bulb or a simple incandescent bulb what you would use for your light fixtures at home. A white light source of heat of the right wattage and a T5 (if you have a really tall enclosure, T8) tube UVB bulb is all you need. Make sure you are checking his temperatures and humidity with accurate tools, especially when changing bulbs etc. Most UVB bulbs only last 4-6 months, so check your manufacturer for usage recommendations.
See this link for more information on enclosures:
https://www.chameleonforums.com/care/enclosures/
See this link for more information on lighting:
https://www.chameleonforums.com/care/lighting/
For more complete care infformation, see the extremely extensive resource materials this forum provides on Panthers and general chameleon care, found here:
https://www.chameleonforums.com/care/caresheets/panther/