original description
Kanno, S. (1978). Brackish Molluscan Fauna (Upper Eocene) from the Silantek Formation in West Sarawak, Malaysia. <em>Geology and Palaeontology of Southeast Asia.</em> 19: 103-112.
page(s): 108-109, pl. 14, figs 1-3, 6, 7 [details] Available for editors [request]
From editor or global species database
Type locality "roadside cutting exposed at M. 112 3/4, Kuching-Simanggang Road, about 100 m north of the bridge over the Sungai Entulang River" (Sarawak, NW Borneo, Malaysia) [details]