@article {48,
	title = {Descriptions of six new species of shells, and Notes on Opisthostoma decrespignii},
	journal = {Proceedings of the Zoological Society of London},
	volume = {1866},
	year = {1866},
	pages = {445-447},
	chapter = {445},
	url = {http://www.biodiversitylibrary.org/item/90954$\#$page/543/mode/1up},
	author = {H. Adam}
}
@article {49,
	title = {On Opisthostoma, H. Blanford, with Description of a New Species from the Neighbourhood of Bombay, and of the animal and Operculum},
	journal = {Proceedings of the Zoological Society of London},
	year = {1866},
	pages = {447-451},
	chapter = {447},
	url = {http://www.biodiversitylibrary.org/item/90954$\#$page/545/mode/1up},
	author = {W.T. Blanford}
}
@article {47,
	title = {Descriptions of some new Operculated Land-shells from Southern India and Ceylon},
	journal = {Proceedings of the Zoological Society of London},
	volume = {1875},
	year = {1875},
	pages = {442-453},
	chapter = {442},
	url = {http://www.biodiversitylibrary.org/item/90418$\#$page/576/mode/1up},
	author = {R.H. Beddome}
}
@article {696,
	title = {Descriptions of shells from Perak and the Nicobar Islands},
	journal = {Proceedings of the Zoological Society of London},
	volume = {1879},
	year = {1879},
	pages = {734-740},
	chapter = {734},
	url = {http://www.biodiversitylibrary.org/item/90455$\#$page/538/mode/1up},
	author = {H.H. Godwin-Austen and G. Nevill}
}
@article {710,
	title = {On a collection of land-shells made in Borneo by Mr. A. Everett, with descriptions of supposed new species},
	journal = {Proceedings of the Zoological Society of London},
	volume = {1889},
	year = {1889},
	pages = {332-355},
	chapter = {332},
	url = {http://www.biodiversitylibrary.org/item/96894$\#$462},
	author = {H.H. Godwin-Austen}
}
@article {moellendorff1891land,
	title = {On the Land and Freshwater Shells of Perak.},
	journal = {Proceedings of the Zoological Society of London},
	volume = {59},
	number = {3},
	year = {1891},
	pages = {330{\textendash}348},
	publisher = {Wiley Online Library},
	url = {http://www.biodiversitylibrary.org/item/99645$\#$page/477/mode/1up},
	author = {Moellendorff, O.P.}
}
@article {701,
	title = {On a collection of land-shells from Sarawak, British North Borneo, Palawan, and other neighbouring islands},
	journal = {Proceedings of the Zoological Society of London},
	volume = {1895},
	year = {1895},
	pages = {97{\textendash}127},
	chapter = {97},
	url = {http://www.biodiversitylibrary.org/item/97158$\#$135},
	author = {E.A. Smith}
}
@article {36,
	title = {On the land operculate Mollusca collected during the "Skeat Expedition" to the Malay Peninsula in 1899-1900},
	journal = {Proceedings of the Zoological Society of London},
	volume = {1903},
	year = {1903},
	pages = {194-199},
	chapter = {194},
	url = {http://www.biodiversitylibrary.org/item/98587$\#$258},
	author = {E.R. Sykes}
}
@conference {berry1964reproduction,
	title = {The reproduction of the minute cyclophorid snail Opisthostoma (Plectostoma) retrovertens from a Malayan limestone hill},
	booktitle = {Proceedings of the Zoological Society of London},
	volume = {142},
	number = {4},
	year = {1964},
	pages = {655{\textendash}664},
	publisher = {Wiley Online Library},
	organization = {Wiley Online Library},
	author = {Berry, AJ}
}
