Shell oblong-conic, spiral, Columella with the base thickened and truncate, inner lip none; outer lip internally thickened; aperture without teeth. Nob.
Type Monodonta seminigra Lam.
Specific Character.
Shell trochiform, black; apex and base of the pillar white.
Monodonta semi-nigra Lam.
Achatina pica. Swains. Monog. in Brands Journal, April, 1828, p. 84.
Achatinella is a very peculiar group of land shells, found only in the Pacific Islands. They are all small, and so remarkably beautiful, that the natives use them for ornaments. It was under this form that seven different species came into our possession on the return of Captain, now Lord Byron, from his voyage to the South Seas. As the systematic conchologist will find them fully described in the Journal above quoted, we now only illustrate them by figures.