babu kalmar "ALOPIUS" a cikin tsarin rarraba ilimin kimiyya. Duk da haka, akwai nau'in kifin kifin da aka fi sani da "Alopias," wanda ya haɗa da shark mai tuƙi na kowa da kuma babban kifin shark. , "Waɗanda duka ɓangare ne na ƙaramin aji "Elasmobranchii" (sharks da haskoki) a cikin ajin "Chondrichthyes" (kifin cartilaginous).Don haka, ma'anar ƙamus na "Genus Alopias" zai zama rarrabuwa taxonomic. ga ƙungiyar sharks waɗanda suka haɗa da kifin kifin na gama gari da babban kifin kifin.