Bobbit Worm

A bobbit worm (Eunice sp.) emerges from its hole in black sand at night to feed. Photo by Dr. Alex Mustard, more can be found on www.amustard.com

Domain: Eukarya
Kingdom: Animalia
Phylum: Annileda
Class: Polychaeta
Order: Einicida
Family: Einicidae
Genus: Eunice
Species: Eunice aphroditis

Annileda is the phylum of segmented worms, with over 22,000 extant species, including leeches and earthworms. Today, I’m going to share with you the shiny rainbow horror that is the bobbit worm.

Eunice aphroditis looks like a creature from a horror writer’s drug-induced fever dream.

Averaging about 3 feet long and 1 inch wide, the bobbit is also a member of the bristle worms. Along each side of its body are paired, spike-like appendages called parapodia. Each fleshy protrusion contains several bristles. The bobbit worm comes in an array of colors, from black to purple to metallic. The body appears to have this shimmery rainbow effect to it, especially in photographs.

The bobbit worm is an ambush predator. It conceals its body, all 3‒10 feet of it, beneath the sand of the seafloor, except for its antennae. When a fish or crustacean brushes up against the antennae, the bobbit worm emerges from the sand to grab its prey and pull it under.

What make this creature appear nightmarish are its powerful mandibles protruding from its mouth and the speed at which it grabs its prey. The mandibles are scissor-like appendages that extend far from the mouth, and they’re used to grab prey. On occasion, the bobbit worm has been seen cutting its prey in half with the mandibles.

The bobbit worm is found in tropical waters, mostly in the Indian and Pacific Oceans. Not much is known about its reproduction. They are considered rare, and these worms are hard to find because of how they bury themselves beneath the sand.

Eunice aphroditis supposedly gets their common name from the Bobbitt Case in the 1990s involving a married couple with the last name Bobbitt. It’s a disturbing case to read about, so learn about it at your own risk; it involved domestic abuse and violence between the couple.

Despite its nightmarish appearance, the bobbit worm was pretty interesting to look into. There’s still room for research, so if you’re looking for something to focus on, look into polychaetas and the bobbit worm! If you want an idea for a freaky yet colorful horror thriller, I think this worm might give you an idea or two.

Sources and links:
Ocean the Definitive Visual Guide made by the American Natural History Museum
http://www.marinespecies.org/aphia.php?p=taxdetails&id=130053#links
https://eol.org/pages/404312
https://www.ourbreathingplanet.com/bobbit-worm/

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