Ramose Murex, also known as the Chicoreus ramosus or Branching Murex

Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Muricidae, Genus: Chicoreus, Species: Chicoreus ramosus · Muricidae (Murex family) · Gastropod univalve with a spiral shape

Ramose Murex, also known as the Chicoreus ramosus or Branching Murex

Species

Chicoreus ramosus

Shell Type

Gastropod univalve with a spiral shape

Family

Muricidae (Murex family)

Size

Approximately 5-6 inches, which is on the larger end of average for this species. Adults typically range from 4 to 12 inches.

Color & Pattern

The shell exhibits a pale off-white to creamy beige base color with subtle brownish tinges. The colors appear somewhat sun-bleached and weathered, lacking the vibrant pinkish or brownish interior markings often seen in pristine specimens.

Rarity

Common

Habitat

Inhabits shallow subtidal waters down to moderate depths, typically found on coral reefs, rocky substrates, and muddy sand bottoms in tropical marine environments.

Geographic Range

Indo-Pacific region, spanning from the Red Sea and East Africa across the Indian Ocean to Southeast Asia, northern Australia, and the western Pacific.

Description

A magnificent and robust marine snail shell characterized by three prominent varices per whorl adorned with elaborate, branching, frilly spines. The spire is elevated with a pointed apex, and the body whorl terminates in a moderately long, open siphonal canal. The surface texture is rough and scaly with fine spiral cords intersecting the growth lines.

Key Features

Distinguished by three frilly, spiny varices per whorl, highly branched and foliaceous projections, a prominent siphonal canal, and a sturdy, heavy overall structure.

Collector Value

Moderately high desirability for decorators and beginning to intermediate shell collectors due to its striking architecture. Values typically range from $15 to $50 depending heavily on size, perfection of the delicate fronds, and color saturation.

Condition Notes

Fair to Good condition. The shell is intact with most of its primary sculptural spines present, though some tips are slightly worn or broken. The surface shows signs of weathering and bleaching from sun exposure, with loss of original rich coloration. Collectibility grade is Good.

Interesting Facts

Murex shells have historically been used since ancient times by the Phoenicians to produce a highly prized and expensive purple dye known as Tyrian purple, extracted from the hypobranchial gland of the living snail.

Ecological Role

As an active carnivorous predator, it plays an important role in controlling populations of other benthic marine organisms like bivalves and barnacles by drilling into their shells to feed.

Similar Species

Chicoreus palmarosae (Rose-branch Murex), which features pinkish tinges and slightly different branching patterns, and Chicoreus torrefactus (Scorched Murex), which has darker, more contrasting color bands.

Beach Finding Tips

Best found by scuba diving or snorkeling around coral reef margins and rocky areas in the Indo-Pacific, as live specimens and intact beach shells are rarely cast ashore in pristine condition.

Identified on 10/5/2026