| tapeworms of the chaco boreal, paraguay, with two new species. | mathevotaenia paraguayae sp. n. is described from euphractus sexcinctus. it differs from m. didelphidis (rud.) in having a transverse cirrus pouch anterior to the vagina. monoecocestus mackiewiczi sp. n. was found in phyllotis sp. it differs from m. parcitesticulatus rego in having a much smaller scolex, a poral ovary, and a cirrus pouch 360 to 440 micrometers long. other species reported are taenia macrocystis, taenia omissa, spirometra mansonoides, spirometra gracilis, spirometra longicollis, ... | 1978 | 722040 |