BioStor
 | Reptilium conspectus quae in republica Peruana reperiuntur er pleraque observata vel collecta sunt in itenere J J Von Tschudi (1845) Archiv für Naturgeschichte 11(1): 150-170 |
 | Notes on the reptiles in the collection of the museum of the Academy of Natural Sciences E D W A R D Hallowell (1856) Proc. Acad. Nat. Sci. Philadelphia 8(4): 146-153 |
 | Notes on the reptiles in the collection of the Academy of Natural Sciences of Philadelphia Edward Hallowell (1856) Proceedings of the Academy of Natural Sciences of Philadelphia 8: 221-238 |
 | Mollusques A-T De Rochebrune and J Mabille (1889) Mission scientifique du cap Horn, 1882-1883 6: 3-129 |
 | On the hemipenes of the Sauria E D Cope (1896) Proc. Acad. Nat. Sci. Philadelphia 48: 461-467 |
 | Die antarktischen Schnecken und Muscheln (1912) Deutsche Subpolar-Expedition 1901-1903 13: 183-285 |
 | The South American lizards in the collection of the United States National Museum Charles E Burt and May Danheim Burt (1930) Proceedings of the United States National Museum 78(2849): 1-52 |
 | Type specimens of reptiles and amphibians in the United States National Museum (1961) Bulletin of the United States National Museum 220: 1-291 |
 | The genera of Cardueae (Compositae; Asteraceae) in the southeastern United States R W Scott (1990) Journal of the Arnold Arboretum 71: 391-451 |