Species that contain: Chaenogobius and macrognathus [ 5 ] records

aino, Chloea Schmidt [P. Yu.] 1904:207 [Fishes of the eastern seas of the Russian Empire; ref. 3946] Chepisani and Tunaichi Lakes, near Aniva Bay, southern Sakhalin Island, River Arzakul', Aniva Bay, Russia. Syntypes: ?NMW 82275 (1); ZIN 13106 (3), 13133 (10, now 8). •Synonym of Gymnogobius macrognathos (Bleeker 1860) -- (Berg 1949:1073 [ref. 20662] as macrognathus, Lindberg & Krasyukova 1975:377 [ref. 7348] as macrognathus). •Synonym of Chaenogobius annularis Gill 1859, subspecies urotaenia (Hilgendorf 1879) -- (Okada 1961:678 [ref. 6363]). •Synonym of Chaenogobius annularis Gill 1859 -- (Vasil'eva 1998:132 [ref. 23591]). •Synonym of Chaenogobius urotaenia (Hilgendorf 1879) -- (Stevenson 2002:303 [ref. 26489]). •Synonym of Gymnogobius urotaenia (Hilgendorf 1879) -- (Vasil'eva 2003:S47 [ref. 28444], Bogutskaya & Naseka 2004:224 [ref. 28183], Dyldin & Orlov 2017:191 [ref. 35257]). Current status: Synonym of Gymnogobius urotaenia (Hilgendorf 1879). Oxudercidae: Gobionellinae. Habitat: freshwater, brackish.

laevis, Gobius Steindachner [F.] 1879:138 [20] [Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Mathematisch-Naturwissenschaftliche Classe v. 80 (nos 1-2); ref. 4229] Hakodate,Oshima Subprefecture, Hokkaido, Japan. Holotype (unique): NMW 29508. On p. 20 of separate. •Synonym of Gymnogobius macrognathos (Bleeker 1860) -- (Berg 1949:1073 [ref. 20662] as macrognathus). •Synonym of Chaenogobius annularis Gill 1859 -- (Okada 1961:676 [ref. 6363]). •Valid as Chaenogobius laevis (Steindachner 1879) -- (Akihito in Masuda et al. 1984:276 [ref. 6441], Kawanabe & Mizuno 1989:614 [ref. 25598], Zhu 1995:179 [ref. 25213], Matsuura et al. 2000:225 [ref. 26000]). •Synonym of Chaenogobius urotaena (Hilgendorf 1879) -- (Kim 1997:581 [ref. 24032] as urotaenius). •Valid as Rhodoniichthys laevis (Steindachner 1879) -- (Reshetnikov et al. 1997:757 [ref. 24702], Vasil'eva 1998:146 [ref. 23591], Bogutskaya et al. 2001:47 [ref. 26178]). •Valid as Gymnogobius laevis (Steindachner 1879) -- (Nakabo 2000:1200 [ref. 25182], Pietsch et al. 2001:146 [ref. 25688], Nakabo 2002:1200 [ref. 26193]). •Synonym of Gymnogobius urotaenia (Hilgendorf 1879) -- (Stevenson 2002:303 [ref. 26489], Bogutskaya & Naseka 2004:224 [ref. 28183], Zhao et al. 2007:454 [ref. 29515], Dyldin & Orlov 2017:191 [ref. 35257]). Current status: Synonym of Gymnogobius urotaenia (Hilgendorf 1879). Oxudercidae: Gobionellinae. Habitat: freshwater, brackish.

macrognathos, Gobius Bleeker [P.] 1860:83, Pl. 1 (fig. 1) [not Pl. 2 as stated in text] [Acta Societatis Regiae Scientiarum Indo-Neêrlandicae v. 8 (art. 1); ref. 374] Tokyo, Japan. Holotype (unique): RMNH 4461. •Valid as Chaenogobius macrognathos (Bleeker 1860) -- (Suzuki & Masuda 1993:4 [ref. 24333]). •Valid as Chaenogobius macrognathus (Bleeker 1860) -- (Akihito in Masuda et al. 1984:278 [ref. 6441], Kawanabe & Mizuno 1989:623 [ref. 25598], Kim 1997:436 [ref. 24032], Reshetnikov et al. 1997:754 [ref. 24702], Vasil'eva 1998:133 [ref. 23591], Sokolovskaya et al. 1998:13 [ref. 24670], Kim & Park 2002:360 [ref. 25913], Choi et al. 2003:398, 658 [ref. 26218], Stevenson 2002:285 [ref. 26489]). •Valid as Gymnogobius macrognathos (Bleeker 1860) -- (Berg 1949:1073 [ref. 20662] as macrognathus, Lindberg & Krasyukova 1975:377 [ref. 7348] as macrognathus, Nakabo 2000:1199 [ref. 25182], Pietsch et al. 2001:146 [ref. 25688], Bogutskaya et al. 2001:47 [ref. 26178], Wang et al. 2001:269 [ref. 26566] as macrognathus, Nakabo 2002:1199 [ref. 26193], Harada et al. 2002:326 [ref. 26496], Vasil'eva 2003:S46 [ref. 28444], Bogutskaya & Naseka 2004:222 [ref. 28183], Zhao et al. 2007:454 [ref. 29515] as macrognatus, Parin et al. 2014:486 [ref. 33547], Dyldin & Orlov 2017:189 [ref. 35257] with question, Henmi et al. 2018:200 [ref. 36477], Dyldin et al. 2021:35 [ref. 38804] with question, Ito et al. 2021:[9] [ref. 38897]). Current status: Valid as Gymnogobius macrognathos (Bleeker 1860). Oxudercidae: Gobionellinae. Distribution: East Asia: Japan, Russia, Korea and China. Habitat: brackish.

raninus, Gymnogobius Taranetz [A. Ya.] 1934:398 [Doklady Akademii Nauk SSSR, Ser. A (Comptes Rendus de l'Académie des Sciences de l'URSS), Leningrad v. 3 (no. 5); ref. 16462] Peter the Great Bay, Sea of Japan, Russia. Lectotype: ZIN 25485. Paralectotypes: (3) ZIN 35325 (1). Lectotype selected by Pinchuk 1978. •Valid as Gymngobius raninus Taranetz 1934 -- (Berg 1949:1075 [ref. 20662], Lindberg & Krasyukova 1975:375 [ref. 7348]). •Synonym in part of Chaenogobius macrognathus (Bleeker 1860) -- (Vasil'eva 1998:133 [ref. 23591]). •Valid as Chaenogobius raninus (Taranetz 1934) -- (Sokolovskaya et al. 1998:13 [ref. 24670]). •Synonym of Gymnogobius macrognathos (Bleeker 1860) -- (Stevenson 2002:285 [ref. 26489], Vasil'eva 2003:S46 [ref. 28444], Parin et al. 2014:487 [ref. 33547], Dyldin & Orlov 2017:189 [ref. 35257]). Current status: Synonym of Gymnogobius macrognathos (Bleeker 1860). Oxudercidae: Gobionellinae. Habitat: brackish.

urotaenia, Gobius Hilgendorf [F. M.] 1879:107 [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1879; ref. 21467] Japan. Possible types: ZMB 10644 (28), 10679 (4). •Synonym of Chaenogobius annularis Gill 1859, but a valid subspecies urotaenia (Hilgendorf 1879) -- (Kuroda 1953:277 [ref. 39545], Okada 1961:678 [ref. 6363]). •Synonym of Gymnogobius macrognathos (Bleeker 1860) -- (Lindberg & Krasyukova 1975:377 [ref. 7348] as macrognathus). •Valid as Chaenogobius urotaenia (Hilgendorf 1879) -- (Sheiko 1983:18 [ref. 37041], Akihito in Masuda et al. 1984:277 [ref. 6441], Kawanabe & Mizuno 1989:618 [ref. 25598], Kim 1997:433 [ref. 24032] as urotaenius, Nikiforov et al. 1997:330 [ref. 24694], Takahashi et al. 1997:47 [ref. 24971], Sokolovskaya et al. 1998:13 [ref. 24670], Stevenson 2000:838 [ref. 24583], Matsuura et al. 2000:227 [ref. 26000], Zemnukhov et al. 2001:420 [ref. 25412], Kim & Park 2002:358 [ref. 25913], Choi et al. 2003:399, 658 [ref. 26218]). •Synonym of Chaenogobius annularis Gill 1859 -- (Vasil'eva 1998:132 [ref. 23591]). •Valid as Gymnogobius urotaenia (Hilgendorf 1879) -- (Nakabo 2000:1197 [ref. 25182], Pietsch et al. 2001:146 [ref. 25688], Bogutskaya et al. 2001:47 [ref. 26178], Nakabo 2002:1197 [ref. 26193], Harada et al. 2002:326 [ref. 26496], Stevenson 2002:303 [ref. 26489], Hagiwara 2003:38 [ref. 27188], Vasil'eva 2003:S47 [ref. 28444], Kim et al. 2004:56 [ref. 27747], Bogutskaya & Naseka 2004:223 [ref. 28183], Zhao et al. 2007:454 [ref. 29515], Shedko & Chereshnev 2005:447 [ref. 30089] in subgenus Taranetziola, Yonezawa et al. 2010:254 [ref. 30902], Motomura et al. 2010:214 [ref. 31256], Matsui et al. 2014:10 [ref. 33344], Parin et al. 2014:488 [ref. 33547], Zhang et al. 2016:200 [ref. 34477], Dyldin & Orlov 2017:190 [ref. 35257], Sonoyama et al. 2020:105 [ref. 37637], Dyldin et al. 2021:36 [ref. 38804], Ito et al. 2021:[9] [ref. 38897]). Current status: Valid as Gymnogobius urotaenia (Hilgendorf 1879). Oxudercidae: Gobionellinae. Distribution: East Asia: Japan, Korea, southern Kuril Islands and Russia. Habitat: freshwater, brackish.