Hydromys The water-rat was collected at the "Tip" at Naur Point Camps in the little streams draining the bog behind the dunes. It was not common. One was trapped in a tiny stream passing through stunted vegetation (shrubby), the other in the more densely wooded creek 1 mile to the south, when I took a trap line. No water-rats were taken at Lockubie in the Larradeenya Creek - a clear-water stream with but three groups of arboreal vegetation (where trapped). None was taken at the Tindini River. One in a creek leading to the mangrove swamps of Portland Roads. One in Gordon's Creek, Jim Reys. Two at Burn's Creek. Four at Worek. Two at Archer River. At Corn two (Dr. Venn, Q. Mus., also for one). One at Upper Nichir R., 1500 ft., also one at Peach R., 800 ft. One at Musgrain Telegraph Station. One at Mt Finnigan: Rossville Creek Camp (raw) One at Seegen's farm, 10 mi from Corktown.