ditrema, Etheostoma (Oligocephalus) Ramsey [J. S.] & Suttkus [R. D.] 1965:66, Figs. 1-3 [Tulane Studies in Zoology v. 12 (no. 3); ref. 9052] Tributary to Mills Creek, tributary to Chattooga River, 4.3 airline miles west of Lyerly, Chattooga County, Georgia, U.S.A. Holotype: TU 35703. Paratypes: ANSP 20649 (1), 101231 [ex TU 32981] (5), 101231 (5); CUMV 47872 [ex TU 32981] (5); MCZ 43123 [ex TU 32981] (5); CAS-SU 62401 [ex TU 32981] (5); TU 26086 (8), 27566 (9), 29153 [ex TU 35703] (21), 32762 (34), 32981 (43 minus 35); UMMZ 187501 [ex TU 32981] (5); USNM 198607 [ex TU 32981] (5). Type catalog: Suttkus 1970:126 [ref. 20861], Collette & Knapp 1967:27 [ref. 20211], Böhlke 1984:138 [ref. 13621], Bart & Taylor 1993:59 [ref. 20906], Gilbert 2009:160 [ref. 30728]. •Valid as Etheostoma ditrema Ramsey & Suttkus 1965 -- (Lee et al. 1980:641 [ref. 22416], Page 1983:128 [ref. 22189], Page & Burr 1991:316 [ref. 18983], Boschung 1992:118 [ref. 23239], Etnier & Starnes 1993:485 [ref. 22809], Mettee et al. 1996:619 [ref. 25836], Nelson et al. 2004:133 [ref. 27807], Boschung & Mayden 2004:529 [ref. 27995], Scharpf 2008:25 [ref. 30399], Page & Burr 2011:584 [ref. 31215], Suttkus et al. 2012:18 [ref. 32288], Page et al. 2013:137 [ref. 32708], Bagley et al. 2023:320 [ref. 41241], Page et al. 2023:199 [ref. 40505]). Current status: Valid as Etheostoma ditrema Ramsey & Suttkus 1965. Percidae: Etheostomatinae. Distribution: North America: Georgia, Tennessee and Alabama (southeastern U.S.A.). Habitat: freshwater.