As Mr. Bernard H. Woodward, of Perth, West Australia, was organising an expedition to Kangaroo, Flinders, and King Islands (December, 1906), to hunt for Emu remains on these islands, I had hoped to be the first to describe what I felt sure would be two new species of _Dromaius_. I have, however, been forestalled by Professor Baldwin Spencer in the case of King Island, whence a collection of 17 femurs, 19 tibio-tarsi, 28 tarso-metatarsi, and portions of 8 pelves, made by Messrs. Alex. Morton and R. M. Johnston, T.S.O., formed the material for the description of a new species. The diagnosis is as follows: "Smaller than _D. ater_ (= _D. peronii_ mihi). Tibia not or only slightly exceeding 330 mm. in greatest length. Tarso-metatarsus not exceeding 280 mm. in greatest length. Pelvis, length not or only slightly exceeding 280 mm." _D. minor_ was a smaller but stouter bird than _D. peronii_. Comparative dimensions:-- _D. peronii_. _D. minor_. Tibio-tarsus 342 mm. 320-332 mm. Tarso-metatarsus 290 " 277-287 " Femur 180 " 170-180 " Pelvis 340 " 274-280 " Pelvis, front width 75 " 64 " Pelvis, width behind acetabular cavity 92 " 78-86 " Habitat: King Island, Bass Strait. Now extinct. * * * * * {239}