(specimen not known in GBIF)
| The recent Mollusca of Augustus Addison Gould R I Johnson (1964) Bulletin of the United States National Museum 239: 1-182 | |
| Herpetological type-specimens in the University of Illinois Museum of Natural History Hobart M Smith, David A Langebartel and Kenneth L Williams (1964) Illinois biological monographs 32: 1-80 |