W. S. S.  van Benthem-Jutting, ?Notes on land Mollusca of the Malay Archipelago?, Journal of Conchology, vol. 19, pp. 196-210, 1932.

H. C.  Fulton, ?Descriptions of some supposed new species of Diplommatina, Opisthostoma, and a new variety of Alycaeus from N. Borneo, Banguey Island, and Darjeeling?, The annals and magazine of natural history, including zoology, botany and geology, vol. 7, pp. 242-245, 1901.

W.  Kobelt, Cyclophoridae, vol. 16. Berlin: R. Friedländer und Sohn, 1902, p. 662.

E. A.  Smith, ?Descriptions of a new species of Opisthostoma from Borneo?, Proceedings of the Malacological Society of London, vol. 6, p. 105, 1904.

E. A.  Smith, ?Description of a new species of Opisthostoma from North Borneo?, The annals and magazine of natural history, including zoology, botany and geology, vol. 7, p. 360, 1905.

E. A.  Smith, ?Description of a new species of Opisthostoma from North Borneo?, Proceedings of the Malacological Society of London, vol. 6, p. 105, 1905.

E.  von Martens and Thiele, J., ?Beschreibung einiger im östlichen Borneo von Martin Schmidt gesammelten Landund Sübwasser-Conchylien?, Mitteilungen aus dem Zoologischen Museum in Berlin, vol. 4, pp. 251-294, 1908.

W. S. S.  van Benthem-Jutting, ?The Malayan species of Opisthostoma (Gastropoda, Probranchia, Cyclophoridae), with a catalogue of all the species hitherto described?, The Bulletin of the Raffles Museum, vol. 24, pp. 5-61, 1952.

A.  Solem, ?A collection of Non-marine mollusks from Sabah, Malaysia?, Sabah Society Journal, vol. 2, pp. 1-40, 1964.

J. J.  Vermeulen, ?Notes on the non-marine molluscs of the island of Borneo. 6. The genus Opisthostoma (Gastropoda Prosobranchia: Diplommatinidae), part 2?, Basteria, vol. 58, pp. 73-191, 1994.