Plectostylus coturnix (Sowerby I, 1832)

Araya, Juan Francisco & Catalan, Ricardo, 2014, A review of the non-bulimulid terrestrial Mollusca from the Region of Atacama, northern Chile, ZooKeys 398, pp. 33-51 : 36

Plectostylus coturnix (Sowerby I, 1832) Figs 3.5-3.9, Table 2

Bulinus coturnix Sowerby I, 1832: 30. Bulimus coturnix : Hupé in Gay 1854: 102, pl. 1, fig. 4; Hidalgo 1870: 115. Bulimulus (Plectostylus) coturnix : Pilsbry 1897: 3, pl. 6, figs 89-92. Plectostylus coturnix : Breure 1979: 89; Stuardo and Vega 1985: 136; Valdovinos and Stuardo 1988: 128-129, figs 86-88. Pl. 3, figs 25-27; Valdovinos 1999: 151; Neubert and Janssen 2004: 206, Taf. 13, fig. 157; Breure and Ablett 2012: 12, figs 4 C–D, 4ii. Plectostylus broderipii : Köhler 2007: 142, fig. 71.

Material examined.

El Morro hill (27°08'43"S, 70°55'42"W), Commune of Caldera, JFA 100113, 12 specimens. Hills near Vallenar (28°34'S, 70°45'W), October 2010, RCG (unnumbered), 25 specimens.

Diagnosis.

Shells stout, elongate-globose, with convex or very convex whorls, decorated with axial and spiral brownish streaks and spots. Last whorl very ample, lip simple, rimate umbilicus.

Distribution and remarks.

Huasco (28°20'S, 71°15'W) ( Valdovinos and Stuardo 1988). This is the northernmost record for the species. This species is easily distin guished from Plectostylus broderipii due to the conspicuous rimate umbilicus, the more globose whorls, stouter shell and shorter spire.