Ma'anar ƙamus na kalmar "Trichodontidae" tana nufin dangin ƙanana, kifayen ruwa waɗanda aka fi sani da kifin yashi ko yashi. Ana samun wadannan kifayen a cikin ruwa marasa zurfi a duniya kuma suna da tsayin daka, siririyar jikinsu da hakora masu kaifi, wadanda ake amfani da su wajen kama ganima a gindin yashi.
