@article {67,
	title = {Catalogue des esp{\`e}ces appartenant au genre Opisthostoma, Blanford.},
	journal = {Journal de conchyliologie},
	volume = {27},
	year = {1879},
	pages = {193-198},
	chapter = {193},
	url = {http://www.biodiversitylibrary.org/item/54087$\#$page/209/mode/1up},
	author = {H. Crosse}
}
@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 {68,
	title = {Faune malacologique de Perak (Indo-Chine)},
	journal = {Journal de conchyliologie},
	volume = {27},
	year = {1879},
	pages = {336-340},
	chapter = {336},
	url = {http://www.biodiversitylibrary.org/page/15928398$\#$page/357/mode/1up},
	author = {H. Crosse}
}
@article {68,
	title = {Mollusques nouveaux de perak (Indo-Chine)},
	journal = {Journal de conchyliologie},
	volume = {27},
	year = {1879},
	pages = {198-208},
	chapter = {198},
	url = {http://www.biodiversitylibrary.org/item/54087$\#$page/219/mode/1up},
	author = {H. Crosse}
}
@article {697,
	title = {Mollusques terrestres et fluviatiles du Royaume de P{\'e}rak et des pais voisins (presque{\textquoteright}Ile Malaise)},
	journal = {Bulletin de la Soci{\'e}t{\'e} Zoologique de France},
	volume = {10},
	year = {1885},
	pages = {353-429},
	chapter = {353},
	url = {http://www.biodiversitylibrary.org/item/42149$\#$page/385/mode/1up},
	author = {J. de Morgan}
}
@article {698,
	title = {The landshells of Perak},
	journal = {Journal of the Asiatic Society of Bengal},
	volume = {55},
	year = {1886},
	pages = {299-316},
	chapter = {299},
	url = {http://www.biodiversitylibrary.org/item/110098$\#$page/337/mode/1up},
	author = {O. von Moellendorff}
}
@article {73,
	title = {Nouvelles contributions malacologiques},
	journal = {Bulletins de la Soci{\'e}t{\'e} Malacologique de France},
	volume = {4},
	year = {1887},
	pages = {273-288},
	chapter = {273},
	url = {http://www.biodiversitylibrary.org/item/54677$\#$page/303/mode/1up},
	author = {C.F. Ancey}
}
@article {709,
	title = {Malaysian land and freshwater Mollusca},
	journal = {Proceedings of the Linnean Society of New South Wales},
	volume = {2},
	year = {1888},
	pages = {1003-1095},
	chapter = {1003},
	url = {http://www.biodiversitylibrary.org/ia/proceeding233413341888lin$\#$page/181/mode/1up},
	author = {J. E. Tenison-Woods}
}
@article {699,
	title = {A list of the land and fresh-water Mollusca of the Malay peninsula with notes},
	journal = {Journal of the Malaysian Branch of the Royal Asiatic society},
	volume = {6},
	year = {1928},
	pages = {25-37},
	chapter = {25},
	author = {F. F. Laidlaw}
}
@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 {1482,
	title = {Note on the Genera Geothauma and Gyrostropha},
	journal = {The annals and magazine of natural history, including zoology, botany and geology},
	volume = {6},
	year = {1893},
	pages = {284-285},
	chapter = {284},
	url = {http://www.biodiversitylibrary.org/page/24344618$\#$page/332/mode/1up},
	author = {E.A. Smith}
}
@article {688,
	title = {Catalog der gegenw{\"a}rtig lebend bekannten Pneumonopomen},
	journal = {Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft},
	volume = {30},
	year = {1898},
	chapter = {134},
	url = {http://biodiversitylibrary.org/item/89671$\#$page/336/mode/1up},
	author = {W. Kobelt and O. von Moellendorff}
}
@article {1476,
	title = {Binnenmollusken aus Hinterindien:1. Land seh necken von Kelantan, Ostk{\"u}ste der Halbinsel Malacca},
	journal = {Nachrichtsblatt der Deutschen Malakozoologischen Gesellschaft},
	volume = {34},
	year = {1902},
	chapter = {135-149},
	url = {http://www.biodiversitylibrary.org/page/15598866$\#$page/525/mode/1up},
	author = {O. von Moellendorff}
}
@book {689,
	title = {Cyclophoridae},
	series = {Das Tierreich},
	volume = {16},
	year = {1902},
	pages = {662},
	publisher = {R. Friedl{\"a}nder und Sohn},
	organization = {R. Friedl{\"a}nder und Sohn},
	address = {Berlin},
	url = {http://biodiversitylibrary.org/item/16047$\#$page/456/mode/1up},
	author = {W. Kobelt}
}
@article {700,
	title = {The Mollusca of the Malayan limestone hills},
	journal = {Malayan Nature Journal},
	volume = {2},
	year = {1947},
	pages = {1-3?},
	chapter = {1},
	author = {M. W. F. Tweedie}
}
@article {45,
	title = {The Malayan species of Opisthostoma (Gastropoda, Probranchia, Cyclophoridae), with a catalogue of all the species hitherto described},
	journal = {The Bulletin of the Raffles Museum},
	volume = {24},
	year = {1952},
	pages = {5-61},
	chapter = {5},
	url = {http://rmbr.nus.edu.sg/rbz/biblio/24/24brm005-062.pdf},
	author = {van Benthem-Jutting, W.S.S.}
}
@article {tadashige1965operculated,
	title = {Operculated land molluscs from Southeast Asia},
	journal = {Nature and life in Southeast Asia},
	volume = {4},
	year = {1965},
	pages = {111-128},
	publisher = {Japan Society for the Promotion of Science},
	author = {Habe, T.}
}
