Hastula inconstans explained

Hastula inconstans is a species of sea snail, a marine gastropod mollusc in the family Terebridae, the auger snails.

References

• Bratcher T. & Cernohorsky W.O. (1987). Living terebras of the world. A monograph of the recent Terebridae of the world. American Malacologists, Melbourne, Florida & Burlington, Massachusetts. 240pp.
• Terryn Y. (2007). Terebridae: A Collectors Guide. Conchbooks & NaturalArt. 59pp + plates
• Severns M. (2011) Shells of the Hawaiian Islands - The Sea Shells. Conchbooks, Hackenheim. 564 pp.