Subspecies
Described subspecies include:
- G. p. admiralitatis (Stresemann, 1929), Admiralty Islands
- G. p. anachoretae (Mayr, 1949), Anchorite Islands, PNG
- G. p. andrewsi (Mathews, 1911), Cocos Buff-banded Rail, endemic to the Cocos (Keeling) Islands, Endangered
- G. p. assimilis (G. R. Gray, 1843), New Zealand
- G. p. chlandleri, northern Sulawesi
- G. p. christophori (Mayr, 1938), Solomon Islands
- G. p. dieffenbachi, endemic to the Chatham Islands, Extinct
- G. p. ecaudatus (J. F. Miller, 1783), (SW Pacific)
- G. p. goodsoni (Mathews, 1911), Samoa and Niue Islands
- G. p. lacustris (Mayr, 1938), (New Guinea)
- G. p. lesouefi (Mathews, 1911), New Hanover, Tabar and Tanga Islands, possibly New Ireland
- G. p. macquariensis (Hutton, 1879), Macquarie Island Rail, endemic to Macquarie Island, Extinct
- G. p. mellori (Mathews, 1912), Tasmania and mainland Australia
- G. p. meyeri (Hartert, 1930), Witu Island, PNG
- G. p. pelewensis (Mayr, 1933), Palau
- G. p. philippensis (Linnaeus, 1766), Philippines, Sulawesi, Buru and Sunda Islands
- G. p. praedo (Mayr, 1949), Skoki Island, Admiralty Islands
- G. p. randi (Mayr & Gilliard, 1951)
- G. p. reductus (Mayr, 1938), northern New Guinea
- G. p. sethsmithi (Mathews, 1911), Vanuatu, Fiji
- G. p. swindellsi (Mathews, 1911), New Caledonia and Loyalty Islands
- G. p. tounelieri Schodde & Naurois, 1982, Coral Sea Islands
- G. p. wahgiensis (Mayr & Gilliard, 1951), central highlands of New Guinea
- G. p. wilkinsoni (Mathews, 1911), Flores
- G. p. xerophilus (Bemmel & Hoogerwerf, 1940), (Indonesia)
- G. p. yorki, Moluccas, western and southern New Guinea
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