leptorhynchus, Syngnathus Girard [C. F.] 1854:156 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 7; ref. 5769] San Diego, California, U.S.A. Holotype: USNM 970. Non-types: MNHN A-3273 [ex USNM] (1); ?UMMZ 64416 (1), ?66044 (1). Type catalog: Bertin & Estève 1950:48 [ref. 19576]. •Valid as Syngnathus leptorhynchus Girard 1854 -- (Fritzsche 1980:210 [ref. 1511], Eschmeyer & Herald 1983:131 [ref. 9277], Dawson 1985:187 [ref. 6541], Matarese et al. 1989:264 [ref. 26885], McAllister 1990:134 [ref. 14674], Swift et al. 1993:131 [ref. 22379], De La Cruz Agüero et al. 1997:295 [ref. 24545], Mecklenburg et al. 2002:336 [ref. 25968], Nelson et al. 2004:112 [ref. 27807], Love et al. 2005:72 [ref. 37547], Kuiter 2009:255 [ref. 30404], Page et al. 2013:114 [ref. 32708], Pietsch & Orr 2015:29 [ref. 34694], Hamilton et al. 2016:Supplement 3 [ref. 35615], Kells et al. 2016:124 [ref. 35888], Burton & Lea 2019:56 [ref. 37205], Love et al. 2021:103 [ref. 39279]). •Synonym of Syngnathus californiensis Storer 1845 -- (Garcia et al. 2019:[13] 1011 [ref. 38915]). Current status: Synonym of Syngnathus californiensis Storer 1845. Syngnathidae: Syngnathinae. Distribution: Northeastern Pacific: southern Alaska south to Pacific coast of southern Baja California Sur (Mexico) (if valid). Habitat: brackish, marine.