letholepis, Poblana Álvarez [J.] 1950:98 [Anales de la Escuela Nacional de Ciencias Biológicas, México v. 6 (nos 1-4) (for 1949); ref. 20547] Crater-lake of La Preciosa, 4 kilometers southeast of Alchichica, Puebla, Mexico, elevation 2365 meters. Holotype: not researched. Paratypes: (135) UANL 1011 [ex IPN P139] (7), UMMZ 160729 (25), USNM 151282 (10). Type catalog: Contreras-Balderas et al. 1998:6 [ref. 23752]. •Valid as Poblana letholepis Álvarez 1950 -- (Espinosa Pérez et al. 1993:62 [ref. 22290], Dyer in Reis et al. 2003:522 [ref. 27061], Nelson et al. 2004:99 [ref. 27807], Scharpf 2007:9 [ref. 30398], Page et al. 2013:101 [ref. 32708]). •Mention -- (Miller 2006:191 [ref. 28615]). Current status: Valid as Poblana letholepis Álvarez 1950. Atherinopsidae: Menidiinae. Distribution: Crater-lake of La Preciosa, Mexico. Habitat: freshwater.