@article {35,
	title = {Notes on the non-marine molluscs of the island of Borneo. 6. The genus Opisthostoma (Gastropoda Prosobranchia: Diplommatinidae), part 2},
	journal = {Basteria},
	volume = {58},
	year = {1994},
	pages = {73-191},
	chapter = {73},
	author = {J.J. Vermeulen}
}
@article {738,
	title = {A new species of Opisthostoma from Thailand (Prosobranchia: Cyclophoroidea: Diplommatinidae).},
	journal = {Malacological Review},
	volume = {29},
	year = {1996},
	pages = {133-134},
	chapter = {133},
	author = {S. Panha}
}
