Caecilidae iyali ne na masu amphibians maras lahani wanda aka fi sani da caecilians. Ana siffanta su da siffar jikinsu mai tsayi da cylindrical, wanda yayi kama da na tsutsotsin ƙasa ko macizai. Caecilians ana samun su da farko a yankuna masu zafi na Afirka, Asiya, da Kudancin Amurka, kuma galibi suna binne dabbobin da ke zaune a cikin ƙasa ko ganye. Iyalin Caecilidae sun haɗa da nau'ikan caecilians kusan 190, waɗanda girmansu ya kai daga ƴan santimita kaɗan zuwa tsayin sama da mita ɗaya.