Kalmar "reptilian" gabaɗaya tana nufin wani abu mai alaƙa da ko halayen dabbobi masu rarrafe. Musamman, yana iya komawa ga dabbobin da ke cikin aji na Reptilia, kamar su kadangaru, macizai, kunkuru, da kada. nau'in nau'in ɗan adam waɗanda aka ce suna da halaye masu rarrafe, kamar ma'auni, tsayin fuska, da ɗalibi masu tsaga. Duk da haka, babu wata hujja ta kimiyya da ta tabbatar da wanzuwar irin wannan nau'in.