papilliferus, Chologaster Forbes [S. A.] 1882:2 [American Naturalist v. 16 (no. 1); ref. 14293] Spring in Union County, Pine Hills, Union County, southern Illinois, U.S.A. Syntypes: (8) INHS 26953 (3), 86467 (1); CAS-SU 626 (1); MCZ 25180 (1). Type catalog: Böhlke 1953:52 [ref. 12291], Smith & Bridges 1960:253 [ref. 21197], Sabaj et al. 1997:273-274 [ref. 23225]. •Synonym of Forbesichthys agassizii (Putnam 1872) -- (Poly & Proudlove 2004:4 [ref. 27586]). •Valid as Forbesichthys papilliferus (Forbes 1882) -- (Chakrabarty et al. 2014:42 [ref. 33338], Armbruster et al. 2016:763 [ref. 34835] mention, Hart et al. 2020:938 [ref. 38604], Page et al. 2023:99 [ref. 40505]). Current status: Valid as Forbesichthys papilliferus (Forbes 1882). Amblyopsidae. Distribution: North America: spring in Union County, Pine Hills, Union County (southern Illinois, U.S.A.). Habitat: freshwater.