Heliacus asteleformis is a species of sea snail, a marine gastropod mollusk in the family Architectonicidae, known as the staircase shells or sundials.
Distribution This species is endemic to New Zealand, found between the northern tip of the North Island and the Three Kings Islands.
Habitat This species is found at depths of about 90 m.
Description The shell height is up to 8 mm, and the width is up to 7.5 mm.
References
Powell A. W. B., New Zealand Mollusca, William Collins Publishers Ltd, Auckland, New Zealand 1979
External links Powell, A. W. B. (1965). New Zealand molluscan systematics with descriptions of new species: part 5. Records of the Auckland Institute and Museum. 6: 161–168, pl. 22. Shikama, T. (1970). On some noteworthy marine gastropoda from southwestern Japan (II). Science Reports of the Yokohama National University. section 2 (Geol.), 16:19-27, 1 pl. Photo