Herpetopoma bellum is a species of sea snails, marine gastropod mollusc in the family Chilodontaidae.

The small, solid, thick shell has a globose-conic shape, evenly grained all over.

The rounded aperture is nacre with steel-blue and dark red reflections.

The concave columella terminates in a tooth, below which there is a narrow notch, and another tubercle or tooth on the basal lip equal in size to the columellar denticle.

[3] This marine species occurs off New Zealand.,[4] Chatham Island and Tasmania.