Phylum： Mollusca 軟體動物門
Class： Gastropods 腹足綱
Family： Camaenidae 南亞蝸牛科
Scientific name： Amphidromus perversus borneensis
Author： (Pilsbry, 1900)
Description： Specimen found on tree leaves. Southeast Borneo. Indonesia. January, 2015.
a stout variant of A. perversus pattern, whitish in background color, and rather similar to the Javanese subspecies, Amphidromus perversus emaciatus. It was described from South Borneo in the Bandjermassin District, but there are specimens in the Leiden Museum from East Borneo. The flammulations above the periphery are reduced in number. It differs from Amphidromus perversus emaciates primarily in the shorter, more ventricose form and consequently wider aperture.
Reference： Pilsbry, 1900, Man. Conch., (2), 13: 153, pl. 50, figs. 39 (lectotype), 40 — southeast Borneo.
More detail photo, please click the following PICTURE.