barkani, Agonus Steindachner [F.] 1880:159 [Anzeiger der Akademie der Wissenschaften in Wien, Mathematisch-Naturwissenschaftliche Klasse v. 17 (no. 19) (for 18 July 1880); ref. 20481] San Francisco Bay, California, U.S.A. Syntypes: NMW 12594 (1), 77000 (3). Species illustrated and described in more detail as Agonus (Brachyopsis) barkani in Steindachner 1880:253 [p. 16 of separate], pl. 5 [ref. 4230]. •Synonym of Occella verrucosa (Lockington 1880) -- (Sheiko 1993:77 [ref. 21227]). •Synonym of Chesnonia verrucosa (Lockington 1880) -- (Kanayama 1991:97 [ref. 19261], Sheiko & Mecklenburg 2004:16 [ref. 27591]). Current status: Synonym of Chesnonia verrucosa (Lockington 1880). Agonidae: Brachyopsinae. Habitat: marine.