Kalmar "Opisthognathidae" ita ce ainihin sunan dangin kifi, kuma tana nufin rukuni na kifayen ruwa waɗanda ke cikin tsari na Perciformes. Membobin dangin Opisthognathidae an fi saninsu da jawfishes, saboda bambancin muƙamuƙi masu tsayi.Jawfishes ana samun su a cikin wurare masu zafi da ruwaye na wurare masu zafi a duniya, kuma galibi suna rayuwa ne a cikin raƙuman ruwa da duwatsu. Su kanana ne zuwa matsakaicin kifaye, tsayin su daga ƴan santimita kaɗan zuwa kusan santimita 30. An san su da halin ɗabi’a na ƙorafi da ba a saba gani ba, inda suke tona burrows a cikin yashi ko tsakuwa da tsare ƙwayayensu da ƙuruciyarsu a ciki.Don haka, ma’anar ƙamus na “Family Opisthognathidae” zai zama “iyali na iyali. marine fishes da aka sani da jawfishes, halin da elongated jaws da kuma musamman nsting hali, kuma na cikin oda Perciformes."