Species that contain: Hypomesus and transpacificus [ 2 ] records

nipponensis, Hypomesus transpacificus McAllister [D. E.] 1963:36, Fig. 11 (upper) [Bulletin. National Museum of Canada No. 191; ref. 8075] Lake Onuma, southern Hokkaido, Japan (species apparently introduced into Lake Onuma from Lake Akan, Hokkaido, Japan). Holotype: NMC 60-498A. Paratypes: BC 59-653 (6), 61-28 (10); MCZ 44129 [ex NMC 60-498] (1); NMC 60-498 (orig. 52, now 45); ROM 21391 (1); UMMZ 179973 [ex NMC 60-498] (2); USNM 197500 [ex NMC 60-498] (1); ZIN [ex NMC 60-498] (3, not found in 1996). Type catalog: McAllister 1965:8 [ref. 22019]. •Synonym of Hypomesus transpacificus McAllister 1963, but a valid subspecies -- (Kawanabe & Mizuno 1989:60 [ref. 25598], Matsuura et al. 2000:36 [ref. 26000], Bogutskaya et al. 2001:45 [ref. 26178]). •Valid as Hypomesus nipponensis McAllister 1963 -- (Uyeno in Masuda et al. 1984:33 [ref. 6441], Page & Burr 1991:56 [ref. 18983], Nikiforov et al. 1997:330 [ref. 24694], Saruwatari et al. 1997:68 [ref. 23753], Dorofeeva 1998:50 [ref. 23573], Aasen et al. 1998:31 [ref. 24069], Youn et al. 1999:150 [ref. 25173], Fuller et al. 1999:236 [ref. 25838], Nakabo 2000:296 [ref. 25086], Shed'ko 2001:264 [ref. 25405], Pietsch et al. 2001:141 [ref. 25688], Kim & Park 2002:262 [ref. 25913], Nakabo 2002:296 [ref. 26001], Choi et al. 2003:190, 527 [ref. 26218], Moyle 2002:232 [ref. 26449], Hagiwara 2003:37 [ref. 27188], Jang et al. 2003:119 [ref. 27681], Nelson et al. 2004:85 [ref. 27807], Bogutskaya & Naseka 2004:127 [ref. 28183], Love et al. 2005:32 [ref. 37547], Ilves & Taylor 2007:182 [ref. 29041], Scharpf 2006:22 [ref. 30386], Bogutskaya et al. 2008:343 [ref. 30085], Page & Burr 2011:378 [ref. 31215], Page et al. 2013:85 [ref. 32708], Parin et al. 2014:114 [ref. 33547], Zhang et al. 2016:187 [ref. 34477], Dyldin & Orlov 2016:673 [ref. 34853], Dyldin et al. 2020:81 [ref. 37569], Dyldin et al. 2021:30 [ref. 38804], Love et al. 2021:51 [ref. 39279], Page et al. 2023:83 [ref. 40505]). Current status: Valid as Hypomesus nipponensis McAllister 1963. Osmeridae. Distribution: Northwestern Pacific; introduced in lakes and estuaries of California (U.S.A.). Habitat: freshwater, brackish, marine.

transpacificus, Hypomesus McAllister [D. E.] 1963:34, Fig. 11 (lower) [Bulletin. National Museum of Canada No. 191; ref. 8075] Lower San Joaquin River between Three Mile Slough and False River, California, U.S.A. Holotype: NMC 60-499. Paratypes: BC 61-71 (8); NMC 60-500 (1), 62-166 (32), 62-167 (10); ROM 21930 (1). Type catalog: McAllister 1965:8 [ref. 22019]. As a species and a subspecies with a second subspecies, H. transpacificus nipponensis. •Valid as Hypomesus transpacificus McAllister 1963 -- (Lee et al. 1980:123 [ref. 22416], Eschmeyer & Herald 1983:81 [ref. 9277], Page & Burr 1991:56 [ref. 18983], Saruwatari et al. 1997:72 [ref. 23753], Dorofeeva 1998:50 [ref. 23573], Fuller et al. 1999:237 [ref. 25838], Musick et al. 2000:11 [ref. 24959], Moyle 2002:227 [ref. 26449], Nelson et al. 2004:85 [ref. 27807], Love et al. 2005:32 [ref. 37547], Scharpf 2006:22 [ref. 30386], Page & Burr 2011:377 [ref. 31215], Page et al. 2013:86 [ref. 32708], Love et al. 2021:52 [ref. 39279], Page et al. 2023:84 [ref. 40505]). Current status: Valid as Hypomesus transpacificus McAllister 1963. Osmeridae. Distribution: North America: San Francisco Bay estuary and Sacramento and San Joaquin river systems (California, U.S.A.). Habitat: freshwater, brackish.