Rhysia halecii (Hickson & Gravely, 1907) (*)
Stylactis halecii Hickson & Gravely, 1907: 8 pl. 1 figs 5–6, pl. 4 fig. 33.
Rhysia halecii —Peña Cantero, 2015: 387–389, figs 9a–d, 10a–c (synonymy).
Remarks. See Peña Cantero (2015) for a re-description of the type material and a wide discussion about the species.
Distribution. Only known from McMurdo Bay (Hickson & Gravely 1907).