This is a male Veiled Chameleon. I have had him for about a year and a half now and a lump has been growing on below his mouth for about several months now. At first it was very small and nearly unnoticeable. Ever since it has grown to an unusual scale and i have grown concerned. He has not appeared to be bothered by it and he eats normally I feed him crickets and max worms. I also spray his cage several times a day. If somebody knows what this is please let me know as soon as possible in case he needs veterinary care. I will be glad to post any extra pictures and info.