Kalmar “genus” tana nufin matsayi na haraji da aka yi amfani da shi wajen rarraba rayayyun halittu. Yana da matakin sama da nau'in nau'i kuma ƙasa da iyali."Kinosternon" jinsin kunkuru ne, wanda aka fi sani da kunkuru laka, wanda ke cikin dangin Kinosternidae. Halin ya haɗa da nau'ikan kunkuru masu ƙanana zuwa matsakaita masu girma waɗanda ake samu a Arewa da Kudancin Amurka.Don haka, ma'anar ƙamus na "genus Kinosternon" zai zama ƙungiyar taxonomic na kunkuru na dangin Kinosternidae. , wanda ya haɗa da nau'in kunkuru na laka da yawa da aka samu a Arewacin Amirka da Kudancin Amirka.