SPECIES A.M.N.H. No. 153470 MAMMAL DEPT. DICKAREE WATERHOLE, 10 miles south of BIRDSVILLE, S.W. Queensland. East Margin of Simpson Desert. AUSTRALIAN SECTION COLLECTOR: L. MACMILLAN. COLL. NO. Spirit No. 8. DATE 24TH MAY 1940. Iredisk Brush-tailed Kangaroo Rat. SEX ♂ SHOT Dug out of burrow. 16.45 AM. WGT. 27.24 gm. SKL. STM. CONDITION GONADS. TOTAL:- 227.5 mm. TAIL: 138 mm. H.F.C.U.: 35 mm. H.E.A.C.: 2 mm. MOULT WING R. 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25. Sec. L. 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25. Sec. Up Covs. Und. Covs. Up Covs. Und. Covs. TAIL R. 1,2,3,4,5,6,7,8,9,10. L. 1,2,3,4,5,6,7,8,9,10. Up COVS. UN COVS. BODY UPPERS—RUMP UNDERS—VENT. LOWER BACK FLANKS UPPER BACK BELLY NAPE BREAST CROWN NECK CHEEKS CHIN ABR. W. T. W./T. SKULL REMARKS Inrs. dark brown or black. Nore + legs pinkish flesh. Pads flesh, with least suggestion of dusky ness. During the morning's collecting for out on the flats towards the foot of a sand hill a crow was seen attacking something which was dodging around & around a dead stump. The crow left as soon as collector approached & when arriving there nothing could be seen except a small burrow amongst the roots of the dead stump. This was dug out & a more or less stunned specimen was found. The burrow was small, about 1" to 1¼" in diameter at the entrance & narrowing to ¾" for the greater part of its length. It was only about 18" in length & curved around the top root of the stump & was nowhere deeper than 4" in the very soft sandy soil. At the end of the burrow a domed circular chamber about 3" to 3½" in diameter with a floor of dried grass or nest. Also there were numbers of the stiff spiky green seeds of the castor oil (local name for a water side herb) with the inner reds eaten out, evidently one food of the species. Members of similar burrows were dug out & all corresponded closely to this, only the length varying from 1 ft to 2 ft in length. One other similar but more reddish or sandy specimen was captured in such a burrow (SP No. 9). Many tracks of the species have been seen but this is the first time it has been captured despite much night hunting, digging, & trapping.