cercocystis

A specialized form of tapeworm cysticercoid larva that develops within the vertebrate host villus rather than in an invertebrate host; e.g., the c. of Hymenolepis nana in its direct or egg-borne cycle in man. SEE ALSO: cysticercus, cysticercoid. [G. kerkos, tail, + kystis, bladder]