Bloodworm
Scientific Name: Glycera dibranchiata
Order & Family: Order: Phyllodocida; Family: Glyceridae
Size: Commonly 5 cm to 35 cm (2 to 14 inches) in length.

Natural Habitat
Coastal marine environments, typically found in soft silty or muddy sediments in estuaries or tidal flats.
Diet & Feeding
They are carnivorous and use a venomous proboscis to capture small crustaceans, other worms, and organic debris.
Behavior Patterns
Active burrowers that stay hidden in sediment. They use a distinct, four-jawed proboscis for hunting and defense. They are also known for their reddish-pink color due to hemoglobin.
Risks & Benefits
They have a painful, venomous bite which can cause localized swelling and may cause allergic reactions in some individuals. Environmentally, they are essential bait for fishing and a food source for fish and birds.
Identified on: 1/6/2026