Plekocheilus (Eurytus) eros (Angas, 1878)

Breure, Abraham S. H. & Avila, Valentin Mogollon, 2016, Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae, ZooKeys 588, pp. 1-199 : 11

Taxon classification Animalia Stylommatophora Amphibulimidae

Plekocheilus (Eurytus) eros (Angas, 1878) Fig. 2 H–J

Bulimus (Eurytus) eros Angas 1878: 312, pl. 18 figs 6-7; Breure and Ablett 2011: 20, figs 20 D–F, 20ii.

Plekocheilus eros ; Richardson 1995: 310 (references).

Plekocheilus (Eurytus) eros ; Breure and Borrero 2008: 5.

Type locality.

“Ecuador”.

Type material.

NHMUK 1879.1.21.2, lectotype ( Breure 1979: 30).

Diagnosis.

Shell relatively medium-sized, rather thin, surface densely and evenly granulate, suture somewhat descending in front and sharply ascending behind lip, aperture ovate, peristome expanded and narrowly reflexed.

Dimensions.

Shell height 35.5, diameter 18.5 mm.

Distribution.

Ecuador, Prov. Loja,? Chaguarpamba (MIZW).

Remarks.

A full re-description, based on the lectotype, was given by Breure (1978: 11). The first precise locality for this species is based on two specimens found in the MIZW collection; the material is accompanied by an original label "Chaguarpata (5800') [1768 m]", and was collected in 1883. Modern gazetteers do not provide any exact name like this for Ecuador; the closest match is Chaguarpamba in Prov. Loja, where altitudes in that range do occur. The (more recent, second) label "Chaguaspata, Peru" seems to be in error as there is no such place in Peru. The specimens have a white lip instead of the pink one in the type specimen.