fossor, Ichthyomyzon Reighard [J.] & Cummins [H.] 1916:1, Pls. 1-2 [Occasional Papers of the Museum of Zoology University of Michigan v. 31; ref. 15254] Mill Creek, tributary to Huron River near Ann Arbor, Washtenaw County, Michigan, U.S.A. Holotype: UMMZ 107045 [ex old number UMMZ 48377]. Paratypes: UMMZ 60611-19 (6, 1, 8, 6, 1, 3, 1, 3, 2). •Valid as Ichthyomyzon fossor Reighard & Cummins 1916 -- (Lee et al. 1980:17 [ref. 22416], Smith 1986:34 [ref. 22186], McAllister 1990:25 [ref. 14674], Page & Burr 1991:16 [ref. 18983], Scott & Crossman 1998:49 [ref. 24570], Yamazaki & Goto 2000:8 [ref. 24514], Bailey et al. 2004:57 [ref. 27882], Scharpf 2005:4 [ref. 28940], Lang et al. 2009:48 [ref. 31599], Page & Burr 2011:122 [ref. 31215], Renaud 2011:49 [ref. 31770], Page et al. 2013:48 [ref. 32708], Page et al. 2023:36 [ref. 40505]). Current status: Valid as Ichthyomyzon fossor Reighard & Cummins 1916. Petromyzontidae. Distribution: North America: Canada and eastern-central U.S.A. Habitat: freshwater.