Lace Murex (also known as the Brown Murex)
Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Muricidae, Genus: Chicoreus, Species: Chicoreus florifer dilectus · Muricidae (Murex family or Rock Snail family) · Gastropod (snail); Whole shell with a fusiform/globose shape and heavy sculptural spines.
Species
Chicoreus florifer dilectus
Shell Type
Gastropod (snail); Whole shell with a fusiform/globose shape and heavy sculptural spines.
Family
Muricidae (Murex family or Rock Snail family)
Size
Approximately 2.5 to 3 inches in length; this is a mature adult size for the subspecies, which typically reaches 1.5 to 4 inches.
Color & Pattern
Base color is a mix of creamy tan and earthy brown with darker brown spiral bands. The sculptural ridges (varices) and spines appear lighter, almost white, due to slight weathering or natural growth patterns. The interior aperture is typically white to pinkish-orange, though not visible here.
Rarity
Common to Uncommon; often found on Florida's Gulf Coast beaches after storms, but intact specimens with unworn spines are harder to find.
Habitat
Marine; found in shallow subtidal waters, often in seagrass beds, coral rubble, or sandy bottoms at depths ranging from 0 to 50 meters.
Geographic Range
Western Atlantic, specifically Florida, the Bahamas, the Greater and Lesser Antilles, and the Gulf of Mexico.
Description
A robust and decorative shell characterized by three main axial varices per whorl, adorned with leaf-like (foliated) spines. The shell has a high spire and a moderately long siphonal canal. The surface is textured with fine spiral threads between the prominent, spine-bearing ridges.
Key Features
Distinguished by the three prominent foliated varices, the lace-like texture of the spines, and the specific dark brown banding that follows the spiral of the shell. Unlike some other Murex, the spines here are relatively short and broadened at the base.
Collector Value
Modest; while common, they are popular among beginners and specialized Muricidae enthusiasts. High-quality 'Gem' specimens with perfect spines and deep color can fetch $10-$25, while beach-found specimens are valued primarily as decorative items.
Condition Notes
Fair to Good; the shell shows some beach wear (erosion) on the tips of the spines and the spire. The coloration is still vibrant but has a matte, slightly weathered texture suggesting it spent some time tumbling in the surf. Collectibility Grade: Good.
Interesting Facts
Murex snails are predatory carnivores that use their radula and acidic secretions to drill holes through the shells of bivalves like clams and oysters. Historically, some Murex species were the source of Tyrian Purple dye, a symbol of royalty in ancient times.
Ecological Role
Active predator that controls bivalve populations. They are also prey for larger crabs and sea turtles. Not currently listed as endangered, but local collection laws in places like Florida usually prohibit taking shells with live animals inside.
Similar Species
Chicoreus florifer (typical form) is larger and darker; Chicoreus pomum (Apple Murex) is more rugged with shorter, knobbier spines and a more yellowish aperture.
Beach Finding Tips
Best found on Florida's West Coast (e.g., Sanibel/Captiva) after a strong cold front or storm. Look in the 'wrack line' or just offshore in shallow water during low tide near seagrass beds.