1. Type specimens of Birds in the Museo Regionale di Scienze Naturali (Torino, Italy)
2. On the Maximilian types of South American birds in the American Museum of Natural History.;Allen;Bulletin of the American Museum of Natural History,1889
3. Catalogue des Mammifères, Oiseaux, Reptiles, Poissons et Mollusques testacés marins, observés dans l’arrondissement d’Abbeville. Memoires de la Société (Royale). d’Emulation d’Abbeville, ser.;Baillon,1834
4. A.R. Wallace’s records of his consignments to S. Stevens.;Baker;Zoölogische Mededeelingen,2001