Idylus

Idylus refers to a genus of small, predatory marine gastropod molluscs belonging to the family Muricidae, commonly known as murex or rock snails. These snails are characterized by their typically elongated, spindle-shaped shells, which often possess elaborate sculpturing, including axial ribs and spiral ridges. The aperture of the shell is usually narrow, and a prominent siphonal canal is present. Idylus species are found in the Indo-Pacific region.

These marine snails are carnivores, feeding on other invertebrates such as bivalves and polychaete worms. They typically inhabit shallow coastal waters, coral reefs, and rocky substrates where they can find their prey. The exact number of species within the genus Idylus can vary depending on taxonomic classification, but it is generally considered to be a relatively small genus. Research into the specific ecological roles and behaviors of Idylus species continues to be an area of interest for marine biologists. Their shells are sometimes collected by enthusiasts due to their intricate patterns and forms.