A second species provisionally considered to be Metanachis laingensis was found in low frequency. The shell is similar to that of M. jaspidea, but has no axial sculpture and is slightly narrower. It is also similar to the species listed by Okutani (2000) as Pseudamycla formosa (Gaskoin, 1852), and may be conspecific with that, however individuals of the species I have seen tend to have more protoconch whorls (3.5 to 3.75). The shell is 7 to 9 mm long with about 5 teleoconch whorls. Shell colouration is pale orange white; one specimen has two spiral rows of square chestnut blocks. The protoconch is smooth, orange or pinkish, with about 3 whorls. The aperture has a weak columellar fold, and barely discernible denticles on the parietal wall and labial edge. There is no posterior parietal denticle.

The species occurs unicoloured, in a form with stripes and in a form with blotches.