decagonus, Agonus Bloch [M. E.] & Schneider [J. G.] 1801:105, Pl. 27 [M. E. Blochii, Systema Ichthyologiae; ref. 471] Greenland. Holotype (unique): ZMB 713 (skin, poor condition). Type catalog: Paepke & Fricke 1992:286 [ref. 19946], Paepke 1999:43 [ref. 24282]. •Valid as Agonus decagonus Bloch & Schneider 1801 -- (Robins & Ray 1986:284 [ref. 23100], Scott & Scott 1988:513 [ref. 25518]). •Valid as Leptagonus decagonus (Bloch & Schneider 1801) -- (Lindberg 1973:605 [ref. 7220], Sheiko 1983:19 [ref. 37041], Andriashev in Whitehead et al. 1986:1266 [ref. 13677], Lindberg & Krasyukova 1987:342 [ref. 15964], McAllister 1990:206 [ref. 14674], Kanayama 1991:37 [ref. 19261], Sheiko 1993:75 [ref. 21227], Kanayama in Okamura et al. 1995:172 [ref. 22531], Busby 1998:18 [ref. 25508], Sheiko & Fedorov 2000:30 [ref. 25650], Mecklenburg et al. 2002:537 [ref. 25968], Parin et al. 2002:S98 [ref. 28300], Fedorov et al. 2003:89 [ref. 27579], Sheiko & Mecklenburg 2004:12 [ref. 27591], Nelson et al. 2004:122 [ref. 27807], Love et al. 2005:97 [ref. 37547], Mecklenburg et al. 2007:177 [ref. 29448], Møller et al. 2010:53 [ref. 31169], Sheiko & Fedorov 2010:48 [ref. 38118], Mecklenburg et al. 2011:125 [ref. 31212], Page et al. 2013:126 [ref. 32708], Dolgov 2013:918 [ref. 33112], Mecklenburg et al. 2014:145 [ref. 33463], Parin et al. 2014:289 [ref. 33547], Mecklenburg & Steinke 2015:164 [ref. 34033], Afonso et al. 2016:55, 179 [ref. 36199], Kells et al. 2016:202 [ref. 35888], Mecklenburg et al. 2016:110 [ref. 34440], Dolgov et al. 2018:137 [ref. 41055], Mecklenburg et al. 2018:252 [ref. 36370] see remarks, Love et al. 2021:130 [ref. 39279], Dyldin & Orlov 2022:56 [ref. 38972], Simian et al. 2022:375 [ref. 40776], Page et al. 2023:188 [ref. 40505]). Current status: Valid as Leptagonus decagonus (Bloch & Schneider 1801). Agonidae: Agoninae. Distribution: Arctic Ocean and adjacent North Pacific and North Atlantic. Habitat: marine.