[
]]The KyuuRangers names are displayed in English in this episode. They spell Hame's KyuuRanger name as ChameleonGreen, which is incorrect since the names are based on the constellations. The constellation Chamaeleon is spelled with an extra "a", so it should be ChamaeleonGreen.[
It is correct that the Constellation is named that. Though the rangers are named after the Japanese names of the constellations, Tenbinza, Shishiza etc.
But in the case of Chameleon there is not a Japanese word for the Chameleon, hence they have it as カメレオン, (Kamereon) in katakana. Which is why they have used Chameleon for Chameleon Green.
But yeah, Chamaeleon works fine to due to the theme.
Sidenote: Chamaeleon would be like チャマエレオン in katakana