gracilis, Melanotaenia Allen [G. R.] 1978:98, Fig. [Tropical Fish Hobbyist v. 26 (no. 10); ref. 8855] Drysdale River, Kimberley region, 15°00'S, 126°54'E, Western Australia. Holotype: WAM P.25410-011. Paratypes: AMNH 51619 [ex WAM P.25873-002] (5); AMS I.19991-001 (2); RMNH 27661 (2); USNM 217957 (2); WAM P.25402-007 (4), P.25404-005 (19, 4 c&s), P.25405-002 (6), P.25406-005 (3), P.25410-006 (13), P.25426-004 (7), P.25427-006 (35), P.25457-004 (9), P.25873-002 (orig. 80, now 74); ZMA 115.747 (2). Type catalog: Nijssen et al. 1982:73 [ref. 19236], Hutchins & Smith 1991:11 [ref. 19335], Moore et al. 2008:12 [ref. 30117]. •Valid as Melanotaenia gracilis Allen 1978 -- (Paxton et al. 1989:350 [ref. 12442], Allen & Leggett 1990:535 [ref. 20887], Unmack 2001:1061 [ref. 25797], Hutchins 2001:25 [ref. 25847], Allen et al. 2002:151 [ref. 25930], Allen et al. 2006:692 [ref. 29066], Morgan et al. 2011:14 [ref. 31262], Allen et al. 2015:103 [ref. 33750], Graf et al. 2023:2066 [ref. 40721]). Current status: Valid as Melanotaenia gracilis Allen 1978. Melanotaeniidae. Distribution: Australia: Drysdale and King Edward River drainages, Kimberley region, northern Australia. Habitat: freshwater.