rapa, Sicyopterus Parenti [L. R.] & Maciolek [J. A.] 1996:662, Figs. 2-3 [Bulletin of Marine Science v. 58 (no. 3); ref. 22291] Shallow water in Pania River at head of Haurei Bay, Rapa, French Polynesia. Holotype: BPBM 12923. Paratypes: AMNH 19941 (6), BPBM 35782 [ex BPBM 12923] (6), CAS 81599 [ex BPBM 12923] (2), MNHN 1994-0501 to 0502 [ex BPBM 12923] (1, 1), USNM 330077 [ex BPBM 12923] (1, allotype). •Valid as Sicyopterus rapa Parenti & Maciolek 1996 -- (Keith et al. 2002:132 [ref. 31473], Keith et al. 2010:327 [ref. 30747], Keith et al. 2015:128 [ref. 34328], Parenti 2021:421 [ref. 38603]). Current status: Valid as Sicyopterus rapa Parenti & Maciolek 1996. Oxudercidae: Sicydiinae. Distribution: South Pacific: Rapa (French Polynesia). Habitat: freshwater, brackish, marine.