Amphidromus dubius Fulton, 1896  

Fulton (1896) original descriptions on Amphidromus dubius – “Shell sinistral, ovate to oblong-conic, obliquely striate, subangulate at the periphery, imperforate; whorls 6, convex, first three semitransparent, lower whorls cream, with oblique bluish-grey stripes, which are more or less branched; a spiral yellow band at lower part of last whorl, last half-whorl either bluish grey or of a greenish tint; apex dark brown columella thin, white, slightly expanded above ; lip expanded and somewhat reflected, white; interior of aperture dark brown.”