Sultana species. A–BS. (Metorthalicus) fraseri (Pfeiffer, 1858); holotype of Orthalicus fraseri brevispira Pilsbry, 1899, ANSP 78573 (H = 69) CS. (Sultana) sultana (Dillwyn, 1817), syntype of Orthalicus trullisatus Shuttleworth, 1956, NMBE 18962 (H = 87.4).

 
 
  Part of: Breure ASH, Mogollón Avila V (2016) Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae. ZooKeys 588: 1-199. https://doi.org/10.3897/zookeys.588.7906