pygmaeus, Leuciscus DeKay [J. E.] 1842:214, Pl. 42 (fig. 134) [Zoology of New-York; ref. 1098] Sparkill Creek, near Piermont, Rockland County, New York, U.S.A. Neotype: NYSM 1405. Neotype designated by Schmidt & Daniels 2006:10 [ref. 28578]. •Valid as Umbra pygmaea (DeKay 1842) -- (Lee et al. 1980:130 [ref. 22416], Smith 1986:242 [ref. 22186], Page & Burr 1991:59 [ref. 18983], Jenkins et al. in Jenkins & Burkhead 1994:247 [ref. 21581], Murdy et al. 1997:102 [ref. 23144], Crossman & Ráb 2001:860 [ref. 25475], Nelson et al. 2004:84 [ref. 27807], Schmidt & Daniels 2006:11 [ref. 28578], Scharpf 2006:22 [ref. 30386], Kottelat & Freyhof 2007:344 [ref. 29996], Page & Burr 2011:376 [ref. 31215], Page et al. 2013:87 [ref. 32708], Robins et al. 2018:175 [ref. 35886], Page et al. 2023:82 [ref. 40505]). Current status: Valid as Umbra pygmaea (DeKay 1842). Umbridae. Distribution: Eastern North America: New York south to Florida (eastern U.S.A.). Introduced in Europe. Habitat: freshwater.