nigra, Helcogramma Williams [J. T.] & Howe [J. C.] 2003:169, Fig. 16-18 [aqua, Journal of Ichthyology and Aquatic Biology v. 7 (no. 4); ref. 27249] Rotuma Island, north coast, ocean side of reef crest, about 100 meters from shore, 12°30'N, 177°05'E, Fiji Islands, depth 1-9 meters. Holotype: USNM 329281. Paratypes: AMS I.35026-001 (1); BPBM 36435 (1); CAS 81762 (1); USNM 283420 (19), 283421 (1). Plus nontype material. •Valid as Helcogramma nigra Williams & Howe 2003 -- (Fricke 2009:50 [ref. 30394], Patzner et al. 2009:447 [ref. 30396], Allen & Erdmann 2012:775 [ref. 31980], Fricke et al. 2014:146 [ref. 33932], Fricke & Erdmann 2017:42 [ref. 35190]). Current status: Valid as Helcogramma nigra Williams & Howe 2003. Tripterygiidae: Tripterygiinae. Distribution: Western Pacific: Papua New Guinea, Solomon Islands and Fiji Islands, Vanuatu and Rotuma Islands. Habitat: marine.