Kalmar "amethystine python" tana nufin wani nau'in maciji, wanda aka fi sani da Amethystine ko Scrub Python, wanda ake samu a sassan Australia, Indonesia, da Papua New Guinea. Kalmar "amethystine" ta samo asali ne daga kalmar Helenanci "amethystos," ma'ana "ba buguwa ba," kuma yana nufin imani cewa amethysts suna da ikon kariya daga buguwa. Ana amfani da kalmar don kwatanta launin macijin na musamman, wanda galibi shine inuwa mai zurfi ta purple ko violet, mai tunawa da gemstone amethyst.