Apple Murex (also known as the Common Atlantic Murex)
Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Muricidae, Genus: Phyllonotus, Species: Phyllonotus pomum · Muricidae (Murex family) · Gastropod (univalve), whole shell, spiral shape with prominent knobs and a short siphonal canal.
Species
Phyllonotus pomum
Shell Type
Gastropod (univalve), whole shell, spiral shape with prominent knobs and a short siphonal canal.
Family
Muricidae (Murex family)
Size
Approximately 2.5 to 3 inches in length, which is slightly smaller than average for mature adults of this species. Full-grown adults typically range from 2 to 5 inches.
Color & Pattern
The exterior displays a mottled combination of beige, light brown, tan, and dark brown or purplish-brown patches, showing signs of mild sun-bleaching and natural wear. The texture is rugged with prominent spiral ridges and nodes.
Rarity
Common, frequently encountered by beachcombers and divers within its natural range.
Habitat
Found in shallow marine waters, typically inhabiting rocky areas, coral rubble, sandy bottoms, and seagrass beds from the intertidal zone down to depths of about 150 feet.
Geographic Range
Western Atlantic Ocean, ranging from North Carolina through the Gulf of Mexico, the Caribbean Sea, and down to northern South America, including Brazil.
Description
A sturdy, rough-textured marine snail shell featuring a rounded body whorl, prominent spiral nodes, and a heavy, varicose outer lip. The aperture is ovate and leads to a relatively short, partially enclosed siphonal canal. The surface is heavily sculpted with axial varices and fine spiral threads.
Key Features
Rounded, robust body whorl; three to six varices per whorl adorned with blunt knobs or spines; a short, thick siphonal canal; and a rounded aperture with a denticulated outer lip.
Collector Value
Low to moderate commercial value. While not rare or expensive, it is a staple for beginner shell collections and educational displays. Typical specimens sell for a few dollars.
Condition Notes
Fair to Good condition. The shell is intact with all major whorls present, though it exhibits moderate weathering, minor surface erosion, and some loss of its original vibrant coloration due to environmental exposure. Grade: Good.
Interesting Facts
Murex snails are carnivorous predators that drill holes into the shells of bivalves using a combination of an acidic secretion and their radula to feed on the soft tissue inside. Historically, members of the Muricidae family were used to produce the famous Tyrian purple dye prized by ancient civilizations.
Ecological Role
Acts as an active marine carnivore controlling bivalve and other mollusk populations. It serves as prey for large fish and crustaceans, and empty shells are frequently utilized by hermit crabs for shelter.
Similar Species
Can be confused with the Cabrit's Murex (Phyllonotus cabritsi) or the Apple Murex's close relative, the Pink-lipped Murex (Vokesimurex recurvirostris). Distinguished by its stockier build, shorter siphonal canal, and characteristic rounded knobs rather than long, delicate spines.
Beach Finding Tips
Look along Gulf Coast beaches and Caribbean shorelines after storms or heavy winds. They are often washed ashore near rocky jetties, grass flats, or shallow sandbars during low tide.