A new species of Trichelix Ancey, 1887 from northeast Guangxi, China (Gastropoda, Stylommatophora, Camaenidae)
广西壮族自治区东北部绒粒螺属一新种记述（腹足纲：柄眼目：坚螺科）
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
摘 要
本文基于形态学特征，记述了产自广西大瑶山国家级自然保护区的陆生贝类一新种：瑶绒粒螺 Trichelix yao n. sp.。该新种可通过明显扁平且非双凹型的壳形、壳表清晰深沟、上腭褶不延伸至壳口、基褶延伸至壳口并形成齿突等特征与已知同属种相区分。
关键词：新种，形态学，分类学，陆生贝类，省级新纪录