Closed columellar..Should be an undiscribe species. Collected from lose soil at the newer lower north slope of this fossil bed..after rain's, by local's. At "The Regency of Jampang". South West of Nyalindung. West Java. Altitude is around 1000 meter's, above sea level. Geological age. Preangerian (Serravallian) Stage of middle Miocene Period