tessellatus, Cualac Miller [R. R.] 1956:9, Pl. 1 [Occasional Papers of the Museum of Zoology University of Michigan No. 581; ref. 3018] Outlet ditch of La Media Luna, San Luis Potosí, Mexico, about 21°52'N, 100°02'W. Holotype: UMMZ 171135. Paratypes: CAS-SU 50213 [ex UMMZ 171136] (5), CAS-SU 68750 [ex UMMZ 171136] (1, c&s); TU 6557 (32); UMMZ 170947-48 (14, 9), 171136 (45, now 34); USNM 171352 (4). Type catalog: Suttkus 1970:125 [ref. 20861], Bart & Taylor 1993:50 [ref. 20906]. •Valid as Cualac tessellatus Miller 1956 -- (Parenti 1981:529 [ref. 7066], Espinosa Pérez et al. 1993:32 [ref. 22290], Lazara 2001:73 [ref. 25711], Nelson et al. 2004:108 [ref. 27807], Miller 2006:294 [ref. 28615], Scharpf 2007:30 [ref. 30398], Page et al. 2013:106 [ref. 32708], Lozano-Vilano & De la Maza-Benignos 2016:14 [ref. 35401], Esmaeili et al. 2018:10 [ref. 36738]). Current status: Valid as Cualac tessellatus Miller 1956. Cyprinodontidae: Cyprinodontinae. Distribution: Pánuco River basin, Atlantic Slope of Mexico. Habitat: freshwater.