Thaumastus nystianus nigricans Cousin, 1887 Figs 12B, 12ii

Thaumastus nystianus var. nigricans Cousin 1887: 220.

Type locality.

[Ecuador, Prov. Pichincha] "les bords du chemin qui conduit de Pomasqui à Chilguiltina".

Label.

"chemin de Pomasqui à Chilguiltina" in Dautzenberg’s handwriting; see remarks.

Dimensions.

Not given. Figured specimen H 37.3, D 17.7, W 6.3.

Type material.

RBINS/MT2365, 13 possible syntypes, ex Cousin (Dautzenberg coll.).

Remarks.

The material is not accompanied by an original Cousin label, but it originates from Cousin; the specimens are treated herein as possible syntypes. This taxon is now considered a junior subjective synonym of Bulimus nystianus Pfeiffer, 1853 (syn. n.).

Current systematic position.

Bulimulidae, Drymaeus (Drymaeus) nystianus (Pfeiffer, 1853).