secretum, Opisthostoma Maassen, 2002
Opisthostoma secretum Maassen, 2002: 179 (figs 45–46).
Gastropoda, Diplommatinidae
Probable paratype: MZSP 95917 (Fig. 2 C–D).
Locality: Indonesia, West Sumatra, east of Payakumbuh, Kampung Desa Gadut, 00°15'35.1'' S, 100°44'01.1'' E, Jul. 1997.
Collector: W.J.M. Maassen.
Preservation: Dry.
Remarks: Former Jens Hemmen Collection. Data on the specimen’s label correspond to a 20-specimen lot originally deposited in Maassen’s reference collection.