Kalmar "Family Ancylostomatidae" tana nufin rabe-raben kimiyya a fagen ilmin halitta. Ancylostomatidae iyali ne na parasitic nematodes (roundworms) waɗanda ke cutar da dabbobi masu shayarwa, gami da mutane. Wadannan tsutsotsi an san su da ɓangarorin baki masu kama da ƙugiya, waɗanda suke ɗaure kansu a bangon hanji na uwargidansu da kuma cin jininsu. Wasu nau'in Ancylostomatidae na iya haifar da matsalolin lafiya masu tsanani, kamar su anemia da rashin abinci mai gina jiki, musamman ga yara da masu raunin garkuwar jiki.