carletoni, Leuciscus Kendall [W. C.] 1903:357 [Bulletin of the U. S. Fish Commission v. 22 [1902]; ref. 12340] Bill Fish Brook, a tributary of East Branch of Penobscot River, about 1 mile below Matagamon Lake, Penobscot County, Maine, U.S.A. Holotype: USNM 50832. Paratypes and additional material: CAS 58627 [ex IU 10892] (11); FMNH 4829 (9); CAS-SU 9834 (9); UMMZ 86846 (3); USNM 50833 (65), 59116 (66), 126826 [ex USBF 1019] (20). Type catalog: Böhlke 1953:33 [ref. 12291], Ibarra & Stewart 1987:52 [ref. 12367], Gilbert 1998:56 [ref. 23395]. •Synonym of Semotilus margarita (Cope 1867) -- (Scott & Crossman 1998:519 [ref. 24570]). •Synonym of Margariscus margarita (Cope 1867), subspecies nachtriebi (Cox 1896) -- (Gilbert 1998:56 [ref. 23395]). Current status: Synonym of Margariscus margarita (Cope 1867). Leuciscidae: Plagopterinae. Habitat: freshwater.