Radda & Meyer 2003. Description of Girardinichthys ireneae sp. n. from Zacapu, Michoacan, Mexico with remarks on the genera Girardinichthys Bleeker, 1860 and Hubbsina De Buen, 1941 (Goddeidae, Pisces). Annalen des Naturhistorischen Museums in Wien Serie B Botanik und Zoologie, 104B, Maerz 2003: 5-9