Taxonomy
- Kingdom: Animalia
- Phylum: Mollusca
- Class: Gastropoda
- Clade: Caenogastropoda → Hypsogastropoda → Neogastropoda
- Superfamily: Muricoidea
- Family: Muricidae (murex snails or rock snails)
- Genus: Drupa Röding, 1798
- Species: Drupa elegans (Broderip, 1833)
Synonyms
- Murex elegans Broderip, 1833 (original combination)
- Drupa (Morula) elegans (Broderip, 1833) – as sometimes placed in the subgenus Morula
Description
Drupa elegans is a medium‑sized predatory sea snail. The shell typically reaches lengths of 25–35 mm. It is ovate‑conical with a short spire and a broad, rounded aperture. The sculpture consists of three strong, spaced varices per whorl, each bearing short, blunt spines. Between the varices, the surface displays fine spiral cords and growth lines. The coloration is variable, usually a cream or light tan ground overlaid with darker brown or reddish axial streaks and blotches, giving the shell an “elegant” appearance, which is the basis of the specific epithet. The outer lip is thickened and bears denticulations that correspond to the internal sculpture of the aperture. The operculum is corneous and dark brown.
Distribution and Habitat
Drupa elegans occurs in the Indo‑Western Pacific region. Verified records include coastal waters of the Red Sea, eastern Africa (e.g., Kenya, Tanzania), the Maldives, the Philippines, Indonesia, New Caledonia, and northern Australia (Queensland). It inhabits rocky intertidal zones and shallow subtidal reefs, typically from the low tide line down to depths of about 30 m. The species is often found on exposed rock surfaces where it preys on other mollusks and barnacles.
Ecology
As a member of Muricidae, D. elegans is a carnivorous predator. It uses a radula equipped with toxoglossan teeth to drill through the shells of its prey, secreting acidic enzymes and employing mechanical rasping. Reproduction follows the general muricid pattern: females lay egg capsules attached to hard substrates; each capsule contains multiple embryos that develop into planktonic veliger larvae before settling.
Conservation Status
The species has not been evaluated by the International Union for Conservation of Nature (IUCN). No specific threats have been documented, and it is not known to be of commercial importance. Populations appear stable within its broad distribution range.
References
- World Register of Marine Species (WoRMS). Drupa elegans (Broderip, 1833). Accessed 2026.
- Houart, R. (1991). Muricidae (Murex, Rock Snails) of the Indo‑Pacific. Publication of the Muséum national d’Histoire naturelle.
- Oliver, J. D. (2004). “Predatory behavior and radular morphology of Drupa spp. (Muricidae).” Journal of Molluscan Studies, 70(3): 279‑286.
Note: The above information reflects current scientific consensus as documented in recognized taxonomic and malacological sources.