Herpetopoma bella is a species of marine gastropod mollusc in the family Trochidae, the top shells.
This top shell is endemic
to the North Island
of New Zealand
, and the Chatham Islands
It is commonly found under stones at low water, often covered by a bright red sponge
The shell is globose-conic, solid, imperforate in adult. Sculpture
consists of spiral granose cords, six or seven on the penultimate whorl
. The aperture
is circular, with two strong tubercles
, separated by a notch, at the base of the columella.
Coloration is dull blackish-brown, silvery iridescent within the aperture.
The maximum shell height is 6.5 mm, and width 6.5 mm.