Larus ridibundus minor, Fatio 1904 (junior homonym of Larus ridibundus minor Schlegel, 1844).

1904 Faune des vertébrés de la Suisse, p. 1507.

Now Chroicocephalus ridibundus (Linnaeus, 1766) .

See Dickinson & Remsen, 2013: 226.

Syntypes: MHNG 705.047, adult male, collected in Switzerland (Geneva) in 1844 by G. Fatio; MHNG 813.029, unsexed adult, collected in Switzerland (Geneva, unknown date) by L. Roget .

Comment: Fatio’s name, being established in combination with the same generic name as Schlegel’s, is a junior objective homonym and an invalid name (Art. 53.3 of the Code).