Taxonomic review of some Chinese species of Moellendorffia, with the description of a new species from Guangdong (Gastropoda, Stylommatophora, Camaenidae)

Abstract. The rich karst topography of southern China supports a high diversity of camaenid land snails, including Moellendorffia Ancey, 1887, but the taxonomy and phylogenetic relationships of several Chinese species remain insufficiently studied. Here, we present a taxonomic review of some Chinese Moellendorffia based on shell morphology, genital anatomy, and mitochondrial COI and 16S sequences. A new species, Moellendorffia shenlong sp. nov., is described from Guangdong Province. In addition, anatomical information is provided for selected species, and the phylogenetic placement of Moellendorffia is discussed.

Key words. Karst landform, new taxon, land snail, South China, taxonomy