Thaumastus (Thaumastiella) Weyrauch, 1956

Breure, Abraham S. H. & Avila, Valentin Mogollon, 2016, Synopsis of Central Andean Orthalicoid land snails (Gastropoda, Stylommatophora), excluding Bulimulidae, ZooKeys 588, pp. 1-199 : 22

Taxon classification Animalia Stylommatophora Megaspiridae

Subgenus Thaumastus (Thaumastiella) Weyrauch, 1956

Thaumastus (Thaumastiella) Weyrauch 1956: 11.

Type species.

Bulimulus sarcochrous Pilsbry, 1897, by original designation.

Diagnosis.

Shell ovate conical, narrowly perforate, height up to ca. 30-ca. 47 mm. Colour whitish to brownish, uniformly coloured or with a light coloured spiral band at the periphery. Surface with incrassate growth striae or, additionally, with incised spiral lines or malleation. Protoconch with axial riblets, which become wavy, anastomosing and irregularly broken up into bead-like to oblong granules on the second whorl. Whorls hardly convex, suture crenulate, hardly to well impressed. Aperture (elongate-)ovate. Peristome thickened, simple or hardly expanded below.

Distribution.

Peru.

Habitat.

Species have been found under stones in 'savannah forest’ at 1200-2750 m.