Notes on Sarawak (Malaysian Borneo) land snails (Mollusca, Gastropoda, Pulmonata): Thirteen new species, a new genus and a first record of an introduced species

Despite their presence in many ecosystems, the diversity of these organisms is still being actively documented through ongoing surveys and taxonomic work. Our study presents 13 new species, a new genus and the first records of pulmonates in Sarawak, contributing to a clearer understanding of species composition in the region.Thirteen new species of land snails are described from Sarawak, Malaysia (Borneo): Hemiplecta gambut, Vitrinula aulacotropis (Ariophantidae); Chloritis platycephala (Camaenidae); Kaliella micradelpha, K. montismulu, K. xystrota, Rahula pallidula, R. scoliostoma (Chronidae); Dyakia nitens, Everettia cryptopleura, E. micropleura, E. platyacris (Dyakiidae); and Hypselostoma stenopyrgus (Hypselostomatidae).

The new genus Gleniskos (Charopidae) is introduced, two species are transferred; Gleniskos lafargei and G. sarawakensis. Finally, Mariaella dussumieri (Ariophantidae) is reported from Sarawak for the first time.