Taxon classification Animalia Stylommatophora Megaspiridae

Thaumastus (Thaumastiella) occidentalis occidentalis Weyrauch, 1960 Figs 19I, 20

Thaumastus (Thaumastiella) occidentalis Weyrauch 1960: 28, pl. 3 figs 13-14; Ramírez et al. 2003: 282; Neubert and Janssen 2004: 220, pl. 2 fig. 24; Köhler 2007: 129, fig. 16; Barbosa et al. 2008: 273; Breure 2012a: 10.

Thaumastus occidentalis; Richardson 1995: 380 (references, synonymy).

Type locality.

"N-Peru am Westhang der westlichen Anden: in der Umgebung von Contumazá, 110 km nö Trujillo".

Type material.

SMF 162026, holotype.

Additional material.

ANSP 204515 (2), FMNH 53991, FMNH 216808, MCZ 211967, SMF 162027 (1), SMF 162028 (4), SMF 208392 (4), ZMB 101463 (1), paratypes.

Diagnosis.

Shell relatively large, brown, with sculpture of incised spiral lines crossing the growth striae (Weyrauch 1960: fig. 13a), aperture elongate-ovate, peristome hardly expanded at basal margin.

Dimensions.

Shell height 45.7, diameter 20.9 mm.

Distribution.

Peru, Dept. Cajamarca, near Contumazá .

Ecoregion.

Tumbes-Piura dry forests [NT0232].

Remarks.

The above diagnosis is based on the original description for this species, for which we know no other material than the types.