In synonymy:
Euctimena Rainbow, 1914 = Atrax O. Pickard-Cambridge, 1877 (Musgrave, 1927: 33)
Poikilomorphia Rainbow, 1914 = Atrax O. Pickard-Cambridge, 1877 (Gray, 1978: 125)

type Atrax robustus O. Pickard-Cambridge, 1877; gender masculine

N.B.: transferred from the Dipluridae to the Hexathelidae by Raven, 1980a: 255 and to the Atracidae by Hedin et al., 2018: 4; considered a senior synonym of Euctimena Rainbow, 1914a: 248 [urn:lsid:nmbe.ch:spidergen:05560] (type E. tibialis Rainbow, 1914 = Atrax robustus O. Pickard-Cambridge, 1877) by Musgrave, 1927: 33; considered a senior synonym of Poikilomorphia Rainbow, 1914a: 264 [urn:lsid:nmbe.ch:spidergen:04871] (type P. montana Rainbow, 1914 = Atrax robustus O. Pickard-Cambridge, 1877) by Gray, 1978: 125, but not of Styphlopis Rainbow, 1913, Pseudatrax Rainbow, 1914 or Anepsiada Rainbow & Pulleine, 1918 (Gray, 1988: 115, contra Gray, 1978: 125 and Raven, 1980a: 255), see Hadronyche.

Transferred to other genera:
Atrax adelaidensis Gray, 1984 -- see Hadronyche
Atrax bicolor (Rainbow, 1914) -- see Hadronyche
Atrax eyrei Gray, 1984 -- see Hadronyche
Atrax flindersi Gray, 1984 -- see Hadronyche
Atrax formidabilis Rainbow, 1914 -- see Hadronyche
Atrax infensus Hickman, 1964 -- see Hadronyche
Atrax modesta Simon, 1891 -- see Hadronyche
Atrax pulvinator Hickman, 1927 -- see Hadronyche
Atrax validus Rainbow & Pulleine, 1918 -- see Hadronyche
Atrax venenatus Hickman, 1927 -- see Hadronyche
Atrax ventricosa (Rainbow & Pulleine, 1918) -- see Hadronyche
Atrax versutus Rainbow, 1914 -- see Hadronyche

In synonymy:
Atrax montanus (Rainbow, 1914) = Atrax robustus O. Pickard-Cambridge, 1877 (Gray, 1988: 114).
Atrax tibialis (Rainbow, 1914) = Atrax robustus O. Pickard-Cambridge, 1877 (Gray, 1988: 114, after Musgrave, 1927: 34).

Atrax robustus O. Pickard-Cambridge, 1877c: 27, pl. 6, f. 1 (Df).
Atrax robustus Hogg, 1901: 273, f. 39 (Df).
Euctimena tibialis Rainbow, 1914a: 249, f. 58-60 (Dm) [urn:lsid:nmbe.ch:spidersp:054713].
Poikilomorphia montana Rainbow, 1914a: 265, f. 71-72 (Df) [urn:lsid:nmbe.ch:spidersp:054712].
Poikilomorpha montana Roewer, 1942a: 202 (lapsus).
Atrax robustus Main, 1964: 40, f. A-F (m).
Atrax robustus Nishikawa, 1976b: 179, f. 1-4 (m).
Atrax robustus Gray, 1984: 441, pl. 7.
Atrax robustus Gray, 1988: 114 (S of Euctimena tibialis and Poikilomorphia montana).
Atrax robustus Gray, 2010: 299, f. 1A, C, 4A-H, 5A-G, 6A-K (mf).

Atrax sutherlandi Gray, 2010: 304, f. 12A-G, 13A-G, 14A-K (Dmf).

Atrax yorkmainorum Gray, 2010: 302, f. 8A-G, 9A-G, 10A-K (Dmf).