"Genus Denisonia" ba kalma ba ce da za a iya samu a daidaitaccen ƙamus kamar yadda take nufin takamaiman rabe-raben halittu na macizai. "Genus" yana nufin nau'in haraji a cikin rabe-raben halittu masu rai wanda ya haɗa da nau'i ɗaya ko fiye na kusa. "Denisonia" shine sunan jinsin macizai masu dafin da aka samo a Ostiraliya.Don ba ku cikakken ma'anar, Denisonia jinsin ƙananan macizai ne a cikin gidan Elapidae. Siffar jikinsu siriri, gajeriyar wutsiyoyi, da dafin neurotoxic mai ƙarfi. A halin yanzu akwai wasu nau'ikan nau'ikan nau'ikan cikin halittar, duk abin da ke da kyau ga Australia. Mafi sanannun nau'in jinsin jinsin shine Denisonia maculata, wanda aka fi sani da maciji mai launin ruwan kasa ko gabas macijin kananan idanu.