Thaumastus (Thaumastus) orcesi Weyrauch, 1967

Breure, Abraham S. H. & Avila, Valentin Mogollon, 2016, Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae, ZooKeys 588, pp. 1-199 : 32

publication ID	https://dx.doi.org/10.3897/zookeys.588.7906
publication LSID	lsid:zoobank.org:pub:EC4E9A71-F7B9-48D2-B245-F8DA8C0907FA
persistent identifier	https://treatment.plazi.org/id/49A610A1-6329-35A3-D493-0DE190059BBE
treatment provided by	ZooKeys by Pensoft
scientific name	Thaumastus (Thaumastus) orcesi Weyrauch, 1967
status

Treatment

Taxon classification Animalia Stylommatophora Megaspiridae

Thaumastus (Thaumastus) orcesi Weyrauch, 1967 View in CoL Figs 24 C–F, 33

Thaumastus (Thaumastus) orcesi Weyrauch 1967: 473, fig. 2; Breure and Borrero 2008: 9; Breure 2012a: 11, pl. 6 figs 59-61.

Type locality.

"Ecuador, cuenca del río Esmeraldas, 35 km al noroeste de Quito, region de Nanegal, 1500 m".

Type material.

FML 3165, holotype.

Additional material.

SMF 156325 (1), paratype.

Diagnosis.

Shell relatively small, irregularly streaked with white and chestnut-brown, sculptured with incrassate growth striae and spirally incised lines, giving the shell a puckered appearance, aperture truncate-ovate, columellar margin twisted, peristome slightly expanded below.

Dimensions.

Shell height 49.4, diameter 23.8 mm.

Distribution.

Ecuador, Prov. Pichincha, Nanegal.

Ecoregion.

Northwestern Andean montane forests [NT0145].

Remarks.

This species is evidently related to Thaumastus (Thaumastus) hartwegi (Pfeiffer in Philippi, 1846), Thaumastus (Thaumastus) integer (Pfeiffer, 1855), and Thaumastus (Thaumastus) flori (Jousseaume, 1897).