Kalmar “genus” tana nufin matsayi na haraji da aka yi amfani da shi a cikin rarrabuwar halittu wanda ke tattare da nau’in jinsin da ke da alaƙa. Ana kiran waɗannan macizai da sunan "pit vipers" saboda kasancewar ramin da ke iya gane zafi da ke tsakanin hanci da ido a kowane gefen kai.Don haka, kalmar "genus Bothrops" tana nufin. rarrabuwa taxonomic wanda ya haɗa da kowane nau'in ɗigon rami na cikin halittar Bothrops.