Munditia echinata is a minute sea snail, a marine gastropod mollusc in the family Liotiidae.

[2] This marine species is endemic to the Three Kings Islands, New Zealand.

[3] The species is found at depths of about 475 m (1,558 ft).

[citation needed] Its shell is very small, solid, boldly sculptured with three spiral rows of long spines, otherwise the surface is smooth.

This Liotiidae-related article is a stub.