Oniki, Mey & Willis 2004. Ricinus ruficapillus n. sp. (Insecta, Phthiraptera, Amblycera, Ricinidae) - a second Ricinus species on the rufous-capped spinetail Synallaxis ruficapilla (Aves, Passeriformes, Furnariidae). Rudolstaedter Naturhistorische Schriften, 12, Dezember 2004: 129-132