Stomacosmethis kapayanensis virgogravida (Foon & Liew, 2017)
Alycaeus virgogravida Foon & Liew, 2017: 72-75, figs 30, 31S.
Type locality.
"Limestone hill at east side of Pulau Dayang Bunting, off Langkawi Island, Kedah (6°12'26"N, 99°47'04"E)".
Remarks.
This taxon differs from S. kapayanensis and its subspecies in only minor traits (shell and operculum sculpture, formation of whorls). Although described as a species in its own right, we suggest using it as a subspecies of S. kapayanensis .