unicolor, Echidna Schultz [L. P.] in Schultz et al. 1953:106, Figs. 21d, 22 [Bulletin of the United States National Museum No. 202, v. 1; ref. 3975] Lagoon reef at Eniwetok Island, Rongelap Atoll, Marshall Islands, western Pacific. Holotype: USNM 141627. Paratypes: FMNH 62582 [ex USNM 141625] (1); USNM 141625 (orig. 2, now 1), 141626 (1). Type catalog: Ibarra & Stewart 1987:33 [ref. 12367], Smith 1994:16 [ref. 21917]. •Valid as Echidna unicolor Schultz 1953 -- (Paxton et al. 1989:127 [ref. 12442], Winterbottom et al. 1989:7 [ref. 13251], Myers 1999:44 [ref. 23965], Böhlke et al. 1999:1656 [ref. 24692], Allen 2000:84 [ref. 37268], Böhlke & McCosker 2001:73 [ref. 25226], Randall & Earle 2000:6 [ref. 25806], Hutchins 2001:16 [ref. 25847], Randall et al. 2004:6 [ref. 27624], Randall 2005:36 [ref. 28239], Mundy 2005:115 [ref. 28379], Smith & Böhlke 2006:37 [ref. 28678], Allen et al. 2006:246 [ref. 29005], Randall 2007:75 [ref. 30952], Fricke et al. 2011:349 [ref. 31242], Allen & Erdmann 2012:78 [ref. 31980], Smith 2012:7 [ref. 32155], Fricke et al. 2014:17 [ref. 33932], Delrieu-Trottin et al. 2015:4 [ref. 33988], Fricke et al. 2018:34 [ref. 35805], Smith & Böhlke 2022:41 [ref. 39681], Allen & Erdmann 2024:87 [ref. 40796]). Current status: Valid as Echidna unicolor Schultz 1953. Muraenidae: Muraeninae. Distribution: Indo-West Pacific: East Africa (Kenya south to Mozambique), Seychelles and Madagascar east to Marshall Islands, Tuamotu Islands and Marquesas Islands (French Polynesia), north to Philippines, south to northern Australia and New Caledonia. Habitat: marine.