Kalmar "Genus Regalecus" tana nufin rarrabuwa taxonomic na nau'in kifin zurfin teku da aka sani da "oarfish" ko "sarkin herrings." Kalmar "genus" tana nufin wani nau'i a cikin tsarin rarrabuwar halittu wanda ya haɗa da nau'in jinsin da ke da alaƙa, yayin da "Regalecus" shine sunan Latin don jinsin.