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J. J.  Vermeulen, ?Notes on the non-marine molluscs of Borneo 3. The genus Platycochlium (Gastropoda, Pulmonata, Streptaxidae)?, BASTERIA, vol. 55, pp. 165-171, 1991.

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J. J.  Vermeulen, ?Bukit Sarang (Sarawak, Malaysia), an isolated limestone hill with an extraordinary snail fauna?, Basteria, vol. 71, pp. 209-220, 2007.

J. J.  Vermeulen, ?Notes on the non-marine molluscs of Borneo 10. The genera Bruggennea, Gulella, and Sinoennea (Gastropoda, Pulmonata, Streptaxidae)?, BASTERIA, vol. 71, pp. 169-176, 2007.

J. J.  Vermeulen, ?Notes on the non-marine molluscs of the island of Borneo 7. The genus Niahia gen. nov.?, Basteria, vol. 60, pp. 67-69, 1996.

J. J.  Vermeulen, ?Notes on the non-marine molluscs of the island of Borneo 8. The genus Arina additions to the genera Diplommatina and Opisthostoma?, Basteria, vol. 60, pp. 87-138, 1996.