Kalmar "Family Limacidae" tana nufin dangin haraji a cikin masarautar dabba, musamman a cikin phylum Mollusca (mollusks). Wannan iyali yana cikin rukunin Gastropoda, wanda ya haɗa da katantanwa da slugs. Limacidae iyali ne na slugs na ƙasa mai shakar iska wanda aka fi sani da keeled slugs ko keelback slugs.Waɗannan slugs suna da alaƙa da tsayin jikinsu da wani kel ko ƙugiya mai gudana tare da baya. Yawanci ba su da harsashi na waje, kodayake wasu nau'ikan na iya samun raguwar harsashi na ciki. Ana samun slugs na Limacidae a wurare daban-daban, ciki har da lambuna, dazuzzuka, da sauran wurare masu ɗanɗano. Suna taka muhimmiyar rawa a matsayin masu lalata, suna taimakawa wajen wargaza kwayoyin halitta a muhallinsu. yi amfani da kowa ko yau da kullun a wajen mahallin kimiyya.