Lion's Paw Scallop (also known as the Notted Scallop)
Phylum: Mollusca, Class: Bivalvia, Order: Pectinida, Family: Pectinidae, Genus: Nodipecten, Species: Nodipecten nodosus · Pectinidae (Scallop family) · Bivalve (two-shelled), whole shell, fan-shaped with radiating ribs
Species
Nodipecten nodosus
Shell Type
Bivalve (two-shelled), whole shell, fan-shaped with radiating ribs
Family
Pectinidae (Scallop family)
Size
Approximately 1.5 to 2 inches wide, which is a juvenile or smaller specimen for this species. Adults typically range from 3 to 6 inches.
Color & Pattern
Vibrant deep burgundy, reddish-purple, and maroon coloration with contrasting stark white patches and markings radiating from the hinge area. The colors are entirely natural, rich, and retain their fresh appearance without sun-bleaching.
Rarity
Uncommon as a whole beach find, especially in bright, unfaded colors. High-grade specimens are prized by collectors.
Habitat
Found in shallow subtidal waters, typically ranging from a few feet down to about 150 feet. They inhabit sandy bottoms, coral rubble areas, and sometimes attach to hard substrates using byssal threads when young, becoming free-living as adults.
Geographic Range
Western Atlantic Ocean, ranging from North Carolina down through the Gulf of Mexico, the Caribbean Sea, and along the coast of Brazil.
Description
A striking and beautifully sculpted bivalve, this Lion's Paw Scallop exhibits a classic fan shape featuring strong, prominent radial ribs and characteristic nodular nodes along the ridges. The rich deep wine-red hues contrast dramatically with bright white splashes near the umbo. The margins are scalloped to tightly interlock, creating a robust and visually stunning profile.
Key Features
Distinguished by its fan-shaped bivalve morphology, strong radial ribs, and the distinct knobby nodes that adorn the ribs (though less developed in this smaller specimen), coupled with its deep purple-red and white coloration.
Collector Value
Highly desirable for shell collectors due to its vibrant coloration and pleasing sculptural form. While common commercially through shell shops, high-quality natural specimens with intense color command good value, typically ranging from $5 to $30 depending on size and grade.
Condition Notes
Very good to fine condition. The shell is intact with bright, unfaded coloration, minimal wear on the ribs, and a clean exterior. Grade: Fine.
Interesting Facts
Unlike many clams that burrow, scallops are capable of swimming by rapidly clapping their valves together to expel water, allowing them to escape predators like starfish. They also possess dozens of tiny, bright blue eyes along the mantle edge that can detect light and shadow.
Ecological Role
Scallops are filter feeders, playing an important role in maintaining water clarity by consuming phytoplankton and suspended organic matter. They serve as a key food source for marine predators including rays, sharks, sea turtles, and large gastropods.
Similar Species
Pacific Lion's Paw (Nodipecten subnodosus) found on the Pacific coast of the Americas, which tends to grow larger and has heavier nodes; and the Atlantic Deep-Sea Scallop (Placopecten magellanicus), which lacks the prominent nodules and deep red coloration.
Beach Finding Tips
Look for these after strong tropical storms or hurricanes in the Caribbean or southern Florida. They are occasionally tossed onto beaches during rough seas, though whole, undamaged specimens are difficult to find.