diaphana, Hydrargira Lesueur [C. A.] 1817:130 [Journal of the Academy of Natural Sciences, Philadelphia v. 1 (pt 1, no. 6); ref. 17513] Saratoga Lake, New York and Pipe Creek, Maryland, U.S.A. No types known. Junior synonym: Gephyrura concentrica Cope 1891 (Pleistocene) (see Cope 1891:654 [ref. 36940]). •Valid as Fundulus diaphanus (Lesueur 1817) -- (Lee et al. 1980:513 [ref. 22416], Smith 1986:266 [ref. 22186], Scott & Scott 1988:313 [ref. 25518], McAllister 1990:124 [ref. 14674], Page & Burr 1991:216 [ref. 18983], Jenkins & Burkhead 1994:608 [ref. 21581], Stauffer et al. 1995:246 [ref. 23376], Murdy et al. 1997:124 [ref. 23144], Wildekamp 1996:243 [ref. 23649], Ghedotti & Grose 1997:858 [ref. 23268], Scott & Crossman 1998:631 [ref. 24570], Lyons et al. 2000:41 [ref. 26594], Wydoski & Whitney 2003:162 [ref. 27816], Nelson et al. 2004:102 [ref. 27807]). •Valid as Fundulus diaphanus (Lesueur 1817), subspecies diaphanus (Lesueur 1817) -- (Fuller et al. 1999:296 [ref. 25838], Lazara 2001:144 [ref. 25711], Scharpf 2007:12 [ref. 30398], Page & Burr 2011:425 [ref. 31215] with 2 subspecies, Ghedotti & Davis 2013:58 [ref. 32490] in subgenus Fundulus, Page et al. 2013:105 [ref. 32708], Sargent et al. 2020:307 [ref. 38265], Page et al. 2023:140 [ref. 40505]). Current status: Valid as Fundulus diaphanus (Lesueur 1817). Fundulidae. Distribution: North America: eastern Canada and U.S.A.; Atlantic coast of U.S.A. [subspecies diaphana]. Habitat: freshwater, brackish.