The world’s tiniest land snails from Laos and Vietnam (Gastropoda, Pulmonata, Hypselostomatidae)

作者：Barna Páll‐Gergely, Adrienne Jochum, Jaap J. Vermeulen, Katja Anker, András Hunyadi, Aydın Örstan, Ábel Szabó, László Dányi, Menno Schilthuizen · 发表于：Bijdragen tot de Dierkunde · 年份：2022 · DOI：10.1163/18759866-bja10025 · 被引用次数：10 · 研究领域：Mollusks and Parasites Studies、Paleopathology and ancient diseases、Aquatic Invertebrate Ecology and Behavior

Abstract Two new, extremely small land snail species, Angustopila coprologos Páll-Gergely, Jochum & Hunyadi n. sp. and Angustopila psammion Páll-Gergely, Vermeulen & Anker n. sp. are described from northern Vietnam and northern Laos, respectively. The former is characterized by a rough surface sculpture and bears tiny mud granules arranged in a pattern of radial lines on its shell surface. The latter species is the new global record-holder of the tiniest land snail title, with a shell width of 0.6–0.68 mm and a shell height of 0.46–0.57 mm. These measurements surpass the former records of Angustopila pallgergelyi and Acmella nana .