Quechua olmosensis olmosensis (Zilch, 1954)

Breure, Abraham S. H. & Avila, Valentin Mogollon, 2016, Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae, ZooKeys 588, pp. 1-199 : 57

Taxon classification Animalia Stylommatophora Orthalicidae

Quechua olmosensis olmosensis (Zilch, 1954) Figs 58A, 59

Thaumastus (Quechua) olmosensis Zilch 1954: 76, pl. 6 figs 10-11; Ramírez et al. 2003: 282; Neubert and Janssen 2004: 220, pl. 2 fig. 15.

Thaumastus olmosensis ; Richardson 1995: 380 (references).

Type locality.

"Peru, am Weg von Olmos nach Jaén, der den nur 2144 m hohe Pass Abra Porculla überschreitet”.

Type material.

SMF 123653, holotype.

Additional material.

SMF 123654 (20), SMF 123655 (5), SMF 123656 (3), paratypes.

Diagnosis.

Shell with an irregular pattern of lighter and darker brown stripes, aperture ear-shaped, light coloured inside, parietal callus whitish-transparent.

Dimensions.

Shell height 91.5, diameter 42.0 mm.

Distribution.

Peru, Dept. Lambayeque, east of Olmos.

Ecoregion.

Tumbes-Piura dry forests [NT0232].

Remarks.

The species was collected in "Lichter Bergwald in 840 m Höhe” by Koepcke. The pass Abra de Poculla is located at 5°50'S, 79°30'W (contrary to the data given by Zilch 1954), and an elevation of 840 m on the road to Jaén, east of Olmos, is reached at ca. 5°55'30"S, 79°32'23"W.