exilis, Noturus Nelson [E. W.] 1876:51 [Bulletin of the Illinois State Laboratory of Natural History v. 1 (no. 1); ref. 3154] Mackinaw Creek, Illinois River drainage, McLean County, Illinois, U.S.A. Lectotype: INHS 37651. Paralectotypes: (2) lost. Type catalog: Sabaj et al. 1997:270 [ref. 23225], Gilbert 1998:212 [ref. 23395], Ferraris 2007:212 [ref. 29155]. Lectotype selected by Sabaj et al. 1997:270 [ref. 23225]. •Valid as Noturus exilis Nelson 1876 -- (Taylor 1969:57 [ref. 6555], Lee et al. 1980:452 [ref. 22416], Robison & Buchanan 1988:301 [ref. 23393], Burgess 1989:34 [ref. 12860], Tomelleri & Eberle 1990:125 [ref. 24089], Page & Burr 1991:202 [ref. 18983], Boschung 1992:65 [ref. 23239], Etnier & Starnes 1993:314 [ref. 22809], Cross & Collins 1995:152 [ref. 23394], Mettee et al. 1996:397 [ref. 25836], Gilbert 1998:212 [ref. 23395], Fuller et al. 1999:203 [ref. 25838], Lyons et al. 2000:36 [ref. 26594], Ross et al. 2001:315 [ref. 25978], Nelson et al. 2004:81 [ref. 27807], Miller & Robison 2004:236 [ref. 27931], Boschung & Mayden 2004:339 [ref. 27995], Scharpf 2006:16 [ref. 30386], Ferraris 2007:212 [ref. 29155], Page & Burr 2011:356 [ref. 31215], Page et al. 2013:84 [ref. 32708], Page et al. 2023:79 [ref. 40505]). Current status: Valid as Noturus exilis Nelson 1876. Ictaluridae. Distribution: North America: Mississippi River system (eastern-central and southern-central U.S.A.). Habitat: freshwater.