Sultana species. A–BS. (Metorthalicus) fraseri (Pfeiffer, 1858), lectotype NHMUK 20140083 (H = 88.9) C–DS. (Metorthalicus) kellettii (Reeve, 1850), lectotype NHMUK 1975241 (H = 61.2).

 
 
  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