Lion's Paw Scallop (Fragment)

Phylum: Mollusca, Class: Bivalvia, Order: Pectinida, Family: Pectinidae, Genus: Nodipecten, Species: Nodipecten nodosus · Pectinidae (Scallop family) · Bivalve (fragment, fan/disc shape)

Lion's Paw Scallop (Fragment)

Species

Nodipecten nodosus

Shell Type

Bivalve (fragment, fan/disc shape)

Family

Pectinidae (Scallop family)

Size

Approximately 1 inch across (fragment). Whole adults typically range from 4 to 6 inches.

Color & Pattern

Vibrant reddish-pink base coloration with raised white ribbing and nodular features. Colors appear natural but weathered.

Rarity

Common as fragments, but whole specimens are considered uncommon to rare finds for beachcombers.

Habitat

Shallow subtidal waters, attached to hard substrates or living freely on sandy bottoms among coral rubble and seagrass beds.

Geographic Range

Western Atlantic, ranging from North Carolina through the Gulf of Mexico, Caribbean, and down to Brazil.

Description

This is a fragment of a Lion's Paw Scallop, showcasing the characteristic heavy radial ribs and distinctive knobby nodes. The texture is rough and calcified, displaying a rich, warm salmon-pink and white coloration typical of the species.

Key Features

Prominent raised radial ribs featuring distinct knobs or nodes along the surface, heavy and sturdy shell structure, and a deep reddish-pink coloration.

Collector Value

Low value due to the fragmentary condition. Whole, gem-quality specimens can command high prices among collectors.

Condition Notes

Highly worn, broken fragment with smoothed edges indicating significant wave action and tumbling. Collectibility grade is Poor due to incomplete status.

Interesting Facts

Lion's paws are known for their ability to swim short distances by rapidly clapping their valves together to expel water when threatened.

Ecological Role

Acts as a filter feeder helping to maintain water quality, and serves as an important food source for marine predators like sea stars, octopuses, and fish.

Similar Species

Atlantic Calico Scallop (Argopecten gibbus) or Rough Scallop (Aequipecten muscosus), which lack the distinct heavy nodes of Nodipecten nodosus.

Beach Finding Tips

Look along high-tide wrack lines after storms in the Caribbean or southern Florida where shell fragments accumulate.

Identified on 9/5/2026