Plekocheilus (Eurytus) Albers, 1850

Breure, Abraham S. H. & Avila, Valentin Mogollon, 2016, Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae, ZooKeys 588, pp. 1-199 : 8

Taxon classification Animalia Stylommatophora Amphibulimidae

Subgenus Plekocheilus (Eurytus) Albers, 1850

Eurytus Albers 1850: 169.

Type species.

Helix pentadina d’Orbigny, 1835, by subsequent designation ( Albers 1860: 195).

Diagnosis.

Shell (elongate-)ovate, height up to ca. 35-ca. 75 mm (study area), colour brownish, usually with darker spots, arranged in axial streaks or oblique series, zigzags or irregularly spaced, whorls slightly convex, suture well impressed, aperture (elongate- or sub-) ovate, columellar margin usually entering with a slight fold above, peristome simple or slightly expanded and reflexed.

Distribution.

West Indies, Panama, Venezuela, Brazil, Bolivia, Peru, Ecuador, Colombia.

Habitat.

Species classified with this taxon fall into two groups: (a) occurring in lowland (rain)forests at altitudes up to ca. 1000 m, or (b) living in montane forests at ca. 1250-3500 m. The species may be found in leaf litter or on shrubs.

Remarks.

This subgenus is not mentioned by Schileyko (1999). See Figs 85 A–B and 86 G–H for unidentified living specimens from Ecuador.

Key to species in the study area