Maciji dabba ne daga cikin rukunin dabbobin da ake kira reptiles wato a hausance; Dabbobi mara sa gashi kenan. Maciji dabbane mai matukar hadari sosai kuma yanada wnau'uka sosai; akwai na ruwa akwai na tsandauri kuma suma akwaisu iri-iri daban_daban. Irinsu mesa, kasa, kububuwa ds.