Kalmar "Family Ephippidae" tana nufin dangin haraji na kifin ruwa na cikin tsari na Perciformes. Mambobin wannan iyali an fi sani da spadefishes kuma ana siffanta su da zurfin jikinsu, matsewar jiki, da kasancewar kashin baya a bayansu da tsura. Ana samun su galibi a cikin ruwaye masu zafi da na wurare masu zafi a duniya, kuma sun shahara a tsakanin masunta na wasanni saboda karfin fada da suke da shi.