Taxonomic rank: Subfamily
Higher classification:
- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Subclass: Caenogastropoda
- Order: Neogastropoda
- Family: Muricidae (murex or rock snails)
Overview
Haustrinae is a subfamily of marine gastropod mollusks belonging to the family Muricidae. Members of this subfamily are predatory sea snails that typically inhabit rocky intertidal and subtidal zones. They possess robust, often spiny shells characteristic of many muricids.
Genera
Recognized genera placed within Haustrinae include, but are not necessarily limited to:
- Haustrum — a genus of medium‑sized snails found mainly around New Zealand and southern Australia.
- Murex — historically broad, with some species reassigned to Haustrinae in recent revisions.
- Truncatella — occasionally listed in taxonomic treatments of the subfamily.
Distribution
Species of Haustrinae are primarily distributed in the Southern Hemisphere, especially around the coasts of New Zealand, southeastern Australia, and nearby islands. Some taxa extend into temperate regions of the South Pacific.
Ecology
Like other muricids, haustrines are carnivorous, feeding on bivalves, barnacles, and other sessile invertebrates. They employ a radular drill to bore through the shells of their prey.
Taxonomic history
The subfamily Haustrinae has been recognized in modern systematic works on Muricidae (e.g., revisions by Houart 2011 and subsequent molecular phylogenetic studies). These studies support its distinction based on morphological characters such as shell sculpture, siphonal canal length, and radular features, as well as DNA sequence data.
References
- Houart, R. (2011). Muricidae (Murex snails) of the world: a detailed taxonomic review. ConchBooks.
- World Register of Marine Species (WoRMS). “Haustrinae”. Accessed 2026.
This entry summarizes the current scientific understanding of the subfamily Haustrinae as a recognized taxonomic group within Muricidae.
