Kalmar "Family Branchiobdellidae" kalma ce taxonomic da ake amfani da ita a ilmin halitta don nufin dangin tsutsotsin tsutsotsi da aka sani da Branchiobdellidae. Wadannan tsutsotsin ectosymbionts ne, ma'ana suna rayuwa ne akan gills na crayfish na ruwa da sauran crustaceans. Sunan "Branchiobdellidae" ya fito ne daga kalmomin Helenanci "branchio" ma'ana gills, da "bdellid" ma'anar leech-kamar. Don haka, kalmar tana nufin dangin tsutsotsi masu kama da leshi waɗanda ke rayuwa a kan ƙwanƙolin ɓarkewar ruwa.