Although normal mice eliminated the lumen-dwelling intestinal cestode Hymenolepis diminuta by day 21 post-cysticercoid inoculation, congenitally thymus-deficient (nude) mice maintained their work burdens. Nude mice grafted with thymus glands or injected with thymus cells eliminated their worms.

The present communication deals with the study of protein and lipid content cestode Aliezia hircusae sp.nov. infecting Capra hircus from Kaij, District Beed, M.S., India. worm is estimated whole body by Gornall et al. (1949) method where as Barners Black Stock method, 1973.