nigrescens, Sicydium Günther [A.] 1880:60, Pl. 26 (fig. C) [Report on the shore fishes procured during the voyage of H. M. S. Challenger in the years 1873-1876 v. 1 (pt 6); ref. 2011] Honolulu, Hawaii and Hawaii. Syntypes: BMNH 1879.5.14.540-543 (4), 1879.5.14.544 (1); NMI block reg. no. 114.1899 (1, poor condition). Probable syntypes: BMNH 1912.11.28.10-14 (12, very poor condition). Type catalog: Wheeler & O'Riordan 1969:98 [ref. 20752]. •Synonym of Sicyopterus stimpsoni (Gill 1860) -- (Mundy 2005:481 [ref. 28379], Keith et al. 2015:134 [ref. 34328]). Current status: Synonym of Sicyopterus stimpsoni (Gill 1860). Oxudercidae: Sicydiinae. Habitat: freshwater, brackish, marine.