A study on helminthhic parasites of the intestines of Rattus spp. was conducte in an are Jatiwaringin Pondok Gede Bekasi. Among 50 rats, trapped during the moth January until May 1994, 3 Cestode species (Raillietina sp., Hymenolepis diminuta and Taenia taeniaeformis), 1 Phasmidia species (Nippostrongylus braziliensis) and I Acanthocephala species (Moniliformis dubius) were found. Four species of Rattus were identified as Rattus diardi, R. norvegicius, R. argentiventer and R. tiomanicus. Sumtro Sunityoso; Jurusan Biologi FMIPA-UI, Depok
