Ma'anar ƙamus na "rosy boa" ƙaramin nau'in maciji ne mara dafin, yawanci ana samunsa a kudu maso yammacin Amurka da arewa maso yammacin Mexico. An yi masa suna don launinsa na musamman, wanda ya haɗa da launin shuɗi ko ruwan hoda a cikinsa da gefensa. Rosy boa sanannen zaɓi ne ga masu mallakar dabbobi saboda yanayin yanayinsa da ƙaramin girmansa, yawanci yana girma zuwa kusan ƙafa 2-3 a tsayi.