koelzi, Margariscus margarita Hubbs [C. L.] & Lagler [K. F.] 1949:112, Pl. 2 ( fig. 1) [Papers of the Michigan Academy of Science Arts and Letters v. 33; ref. 10885] Harvey Lake, Isle Royale, Keweenaw County, Lake Superior, Michigan, U.S.A. Holotype: UMMZ 100010. Paratypes: UMMZ 100011 (35), 144473 (12). Type catalog: Gilbert 1998:100 [ref. 23395]. •Synonym of Semotilus margarita (Cope 1867), but a valid subspecies as described -- (Scott & Crossman 1998:516 [ref. 24570]). •Synonym of Margariscus margarita (Cope 1867), subspecies nachtriebi (Cox 1896) -- (Gilbert 1998:100 [ref. 23395]). •Synonym of Margariscus margarita (Cope 1867) but a valid subspecies -- (Scharpf 2005:24 [ref. 28940]). •Synonym of Margariscus nachtriebi (Cox 1896). Current status: Synonym of Margariscus nachtriebi (Cox 1896). Leuciscidae: Plagopterinae. Habitat: freshwater.