Apple Murex (also known as the Apple Rock Murex)
Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Muricidae, Genus: Phyllonotus, Species: Phyllonotus pomum · Muricidae (Rock Snail / Murex family) · Gastropod (univalve), whole shell, spiral shape with prominent varices and spines
Species
Phyllonotus pomum
Shell Type
Gastropod (univalve), whole shell, spiral shape with prominent varices and spines
Family
Muricidae (Rock Snail / Murex family)
Size
Approximately 3 inches in length, which is a standard adult size for this species. Adults typically range from 2.5 to 5 inches.
Color & Pattern
Muted brownish-tan to grayish-white base coloration with subtle darker brown banding across the body whorl. The interior aperture is tinged with a soft pinkish-orange or cream. The colors appear somewhat weathered and sun-bleached from exposure.
Rarity
Common, frequently found by beachcombers and divers throughout its range.
Habitat
Shallow subtidal to intertidal zones, typically found on sandy substrates, muddy bottoms, and near coral reefs or seagrass beds.
Geographic Range
Western Atlantic Ocean, ranging from North Carolina down through Florida, the Gulf of Mexico, the Caribbean Sea, and south to Brazil.
Description
A sturdy and robust marine snail shell characterized by heavy, rounded varices adorned with short, frilly fronds and spines. It features a moderately high spire, a defined anterior canal, and a distinct, rounded aperture with a toothed outer lip.
Key Features
Heavy spiral structure with distinct varices, rows of blunt frilly spines along the shoulders, a well-developed siphonal canal, and a rounded aperture with a thickened, dentate outer lip.
Collector Value
Low to moderate value. While widely collected and very popular among beginner shell enthusiasts, pristine specimens command higher prices, whereas weathered beach finds like this have minimal commercial value.
Condition Notes
Fair to Good condition. The shell is intact with most of its primary sculptural elements preserved, but it shows signs of beach wear, minor tip erosion, and a faded, weathered surface lacking the fresh vibrancy of a live-collected specimen.
Interesting Facts
Murex snails are carnivorous predators that drill holes into the shells of bivalves using a specialized radula and acidic secretions. Historically, certain members of the Muricidae family were used to produce expensive purple dye for royalty.
Ecological Role
Acts as an active carnivorous predator controlling bivalve and other mollusk populations. It serves as an important part of the marine food web, consumed by large fish and crustaceans, and empty shells frequently provide mobile homes for hermit crabs.
Similar Species
Can be confused with the Chicoreus florifer (Florida Rock Shell) or Phyllonotus margaritensis (Apple Murex relative), but distinguished by the specific arrangement of its varices and the pinkish interior aperture.
Beach Finding Tips
Look for empty shells along sandy or shelly beaches in Florida and the Caribbean, particularly after heavy storms or rough wave action push debris onto the shoreline.