Bostryx turritus
Bostryx turritus is a species of tropical air-breathing land snail, a pulmonate gastropod mollusk in the family Bulimulidae.
Distribution
This species was known from Trujillo Province in La Libertad Region and Pariacoto in Ancash Region. Recently, Ramírez reported it from Cerro Pasamayo and Salinas de Huacho in Lima Region. She also refers to unpublished data by Weyrauch, who collected the species at Cerro Campana, 14 km north of Trujillo 07°58’54’S 079°06’24’W and near Chilete in Cajamarca Region. Breure reported the species from the same department near Magdalena. Breure reported it from Catzcal 1050 m, 09°54’43’S 077°49’40’W, Ancash Region, Peru.Zilch reports Bostryx turritus turritus from Hacienda El Casa Grande in La Libertad Region, and described Bostryx turritus tamboensis from the same locality, albeit from different elevations. According to Haas – reporting a locality at 1360 m – his shells ‘are slightly more slender than the typical form’. The specimens from Catzcal show a variation in ration shell height/shell width from 2.84 to 3.18. It is possible that this variation can also be found in the populations at the localities in La Libertad, in which case Bostryx turritus tamboensis should be considered a synonym of the nominate taxon.