The only difference is color and sometimes size everything else is the same... They are the same animal just different locales/colors. Ambanjas seem longer and thinner ambis. Seem bigger and shorter . Ambanjas have a green,blue or greenish blue background color with either red,blue,purple or blue red mix. Bar color and some have a lot of yellow on there faces depending on weather they are F1,F2 ect........... Ambis. Come in green,blue,red,yellow,orange and a combo of background colors.there bars are red,blue or a mix of red and blue with the rear green bar which I have only seen a few times.... This is my observations of the 2 locales.