Land snail fauna of the Mekong Delta Limestone Hills (Cambodia, Vietnam): Notharinia Vermeulen, Phung et Truong, 2007, and a note on Plectostoma A. Adams, 1865 (Mollusca: Gastropoda: Caenogastropoda: Diplommatinidae)

Jaap J. Vermeulen, e-mail:

JK Art and Science, Lauwerbes 8, 2318 AT Leiden, Netherlands

Hong Truong Luu, e-mail:

Southern Institute of Ecology, Vietnam Academy of Science and Technology, 1 Mac Dinh Chi, Ho Chi Minh, Vietnam

Keum Theary, e-mail:

Cambodian Entomology Initiatives, Royal University of Phnom Penh, 12101 Phnom Penh, Cambodia

Katie Anker

JK Art and Science, Lauwerbes 8, 2318 AT Leiden, Netherlands

Seven new species of Notharinia Vermeulen, Phung et Truong, 2007 (Mollusca, Gastropoda, Diplommatinidae; formerly included in Pupinidae) are described from limestone hills on the east flank of the Mekong Delta, in Vietnam and Cambodia. A map showing the distribution of all ten species now known from the area is presented. In addition, Plectostoma haplohelix Vermeulen, Luu, Keum et Anker, 2019, is synonymised with P. lavillei (Dautzenberg et Fischer, 1905)

Key words
land snails; Notharinia; Plectostoma; Cambodia; Vietnam; Mekong Delta Limestone Hills

Adams H., Adams A. 1854–1858. The genera of recent Mollusca 2. John van Voorst, London.
Dautzenberg P., Fischer H. 1905. Liste des Mollusques récoltés par M.Mansuy en Indo-Chine et au Yunnan et description d’espèces nouvelles, II. Journal de Conchyliologie, Paris 53: 343–471.
Egorov R. 2013. A review of the genera of the terrestrial Pectinibranch molluscs (synopsis mainly based on published data). Part III. Littoriniformes. Liareidae, Pupinidae, Diplommatinidae, Alycaeidae, Cochlostomidae. Treasure of Russian shells. Supplement 3. Colus-Doverie Ltd. Press, Moscow.
IUCN Red List – The IUCN (International Union of Conservation of Nature) Red List of Threatened Species, available at
Maassen W. J. M. 2008. A new species of Notharinia Vermeulen, Phung & Truong, 2007 from Peninsular Malaysia (Mollusca, Caenogastropoda, Pupinidae). Zoologische Mededelingen 82: 101–104.
Marzuki M. E. bin, Foon J. K. 2016. A new land snail, Arinia (Notharinia) micro (Caenogastropoda: Cyclophoroidea: Diplommatinidae), from a limestone karst in Perak, Peninsular Malaysia. Raffles Bulletin of Zoology 64: 313–318.
Páll-Gergely B., Hunyadi A. 2018. Four new cyclophoroid species from Thailand and Laos (Gastropoda: Caenogastropoda: Alycaeidae, Diplommatinidae, Pupinidae). Zoosystema 40: 59–66.
Vermeulen J. J. 1996. Notes on the nonmarine molluscs of the island of Borneo 8. The genus Arinia; additions to the genera Diplommatina and Opisthostoma (Gastropoda Prosobranchia: Diplommatinidae). Basteria 60: 87–138.
Vermeulen J. J., Phung C. L., Truong Q. T. 2007. New species of terrestrial molluscs (Caenogastropoda, Pupinidae & Pulmonata: Vertiginidae) of the Hon Chong – Ha Tien limestone hills, southern Vietnam. Basteria 71: 81–92.
Vermeulen J. J., Luu H. T., Keum T., Anker K. 2019. New species of land snails (Mollusca: Gastropoda: Caenogastropoda and Pulmonata) of the Mekong Delta Limestone Hills (Cambodia, Vietnam). Folia Malacologica 27: 7–41.

Folia Malacologica (2019) 27: 167-177
First published on-line: 2019-08-01 00:00:00
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