A new species of Trichelix Ancey, 1887 from northeast Guangxi, China (Gastropoda, Stylommatophora, Camaenidae)

Abstract: A new species of camaenid land snail, Trichelix yao n. sp., is described from Guangxi, China, based on its morphological characteristics. Trichelix yao n. sp. differs from all known congeners by its distinctly depressed, non-biconcave shell with prominent furrows, a palatal fold that does not extend to the aperture, a basal fold that reaches the aperture and forms a tooth. This discovery extends the known distribution of Trichelix in southern China and helps bridge the distribution gap of this genus in Guangxi. Key words: Taxonomy, land snails, Guangxi, new species, new provincial record