Plectranthias polygonius Shepherd, Phelps, Pinheiro, Rocha, & Rocha, 2020

Holotype: CAS 247193, field code HTP906, GenBank MN 922331, 29.5 mm SL.

Type locality: Tahiti, French Polynesia, 17°29′27″S, 149°28′01″W, depth 105 meters .

Illustrations: Shepherd, Phelps, Pinheiro, Rocha, & Rocha, 2020, figs. 1 & 2A.

Counts: D: X, 16. A: III, 7. P: 14. C: 17 (9 + 8). V: 26 (10+ 16). S: 3. GR: 18 or 19 (5 or 6 + 13). LL: 27 to 30. CP: 10 or 11.

Distribution: Tahiti, French Polynesia, and Maloelap Atoll, Republic of the Marshall Islands.