BioStor
 | Notes on some genera of fishes of western North America T N Gill (1862) Proceedings of the Academy of Natural Sciences of Philadelphia 14: 329-333 |
 | On the genera of North American freshwater fishes D S Jordan and C H Gilbert (1877) Proceedings of the Academy of Natural Sciences, Philadelphia 29: 83-104 |
 | A review of the salmonoid fishes of Japan David S Jordan and John O Snyder (1902) Proceedings of the United States National Museum 24: 567-593 |