BioStor
 | XLVII.—Note on the genera Geothauma and Gyrostropha Edgar A Smith (1893) Annals And Magazine of Natural History 11: 284-285 |
 | Beschreibung einiger im ostlichen Borneo von Dr. Martin Schmidt gesammelten Land- und Susswasser-Conchylien. Hrsg. v. Joh. Thiele (1908) Mitteilungen Aus Dem Zoologischen Museum In Berlin 4: 249-292 |
 | A new genus of operculate land snails from Hispaniola with comments on the status of family Annulariidae (1978) Nautilus 92: 41-54 |
 | 2 New Land Snails Of The Genus Opisthostoma From Borneo Prosobranchia Cyclophoracea Diplommatinidae F G Thompson (1978) Proceedings of The Biological Society of Washington 91: 386-391 |