Kalmar "Genus Mesocricetus" tana nufin rarrabuwa taxonomic da aka yi amfani da ita a cikin ilmin halitta don kwatanta rukuni na nau'ikan hamma masu alaƙa. kamar dabbobin gida, irin su hamster na zinariya (Mesocricetus auratus) da hamster na Siriya (Mesocricetus syriacus). Wadannan hamsters sun fito ne daga sassan Gabas ta Tsakiya da Asiya, kuma an san su da ƙananan girmansu, zagaye da jikinsu, da fursunoni. tsarin rarrabawa da aka yi amfani da shi a cikin ilmin halitta zuwa ga ƙungiyoyin halittu dangane da halayen da aka raba. Halin Mesocricetus wani ɓangare ne na dangin Cricetidae, wanda ya haɗa da wasu ƙananan rodents kamar voles, lemmings, da sauran nau'in hamsters.