Austinograea williamsi Hessler & Martin, 1989:
Paratypes. Western North Pacific • 1♂ (21.6 × 34.2 mm), 1 ♀ (22.5 × 35.3 mm), 1 small ♂ (15.2 × 23.8 mm); dive 1845; Alice Springs vent field; 3640 m; 6.V.1987; 18°12.599’N, 144°42.431’E; MNHN-IU-2008-11121 (= MNHN-B20910) .