Wrinkled Drupella or Common Atlantic Dogwinkle / Mulberry Shell
Phylum: Mollusca, Class: Gastropoda, Order: Neogastropoda, Family: Nassariidae, Genus: Nassarius, Species: Nassarius trivittatus · Nassariidae (Nassa mud snails or dog whelks) · Gastropod, whole shell, spiral shape
Species
Nassarius trivittatus (Three-lined Nassa) or a juvenile whelk/drill
Shell Type
Gastropod, whole shell, spiral shape
Family
Nassariidae (Nassa mud snails or dog whelks)
Size
Approximately 0.5 inches (12-15 mm) in length, which is typical for a small adult or sub-adult specimen of this species group.
Color & Pattern
Muted grayish-brown to tan base color with subtle spiral banding and darker brownish highlights along the axial ribs. The surface appears slightly glossy or wet in the photo.
Rarity
Common
Habitat
Shallow marine waters, typically found on sandy or muddy bottoms in intertidal zones and bays.
Geographic Range
Western Atlantic Ocean, ranging from the northeastern coast of North America down to the southeastern United States.
Description
A small, sturdy gastropod featuring prominent axial ribs crossed by fine spiral cords, creating a finely beaded or cancellate texture. It has a pointed spire and a moderately short siphonal canal.
Key Features
Distinctive grid-like sculpture formed by intersecting axial ribs and spiral threads, a relatively high pointed spire, and an oval aperture.
Collector Value
Low commercial value as they are very common, but popular among beginner shell collectors and for craft projects.
Condition Notes
Good condition with intact spire and body whorl. Minor natural wear on the apex, overall collectibility grade is Good.
Interesting Facts
Nassarius snails are notable scavengers, often referred to as the vultures of the sea. They can rapidly detect the scent of dead or decaying matter in the water and swarm to it in large numbers.
Ecological Role
Acts as an important scavenger and part of the marine cleanup crew, recycling nutrients by feeding on dead organic matter.
Similar Species
Other Nassarius species such as Nassarius obsoletus (Eastern Mudsnail), which is smoother and darker, and various juvenile whelks.
Beach Finding Tips
Look along sandy shorelines, tidal flats, and low-tide wrack lines where small drift shells accumulate.