Common name: Bobbit Worm
General information
The Bobbit Worm, scientifically known as Glycera unicornis, is a fascinating yet fearsome polychaete worm found in warm marine waters. It is known for its striking appearance and predatory behavior. The worm's body can reach impressive lengths, sometimes exceeding a meter, and it is adorned with vibrant colors that can vary from specimen to specimen.
The name 'Bobbit Worm' was inspired by an infamous domestic incident in the United States, but the worm's actual behavior is even more dramatic. It is a stealthy predator, using its powerful jaws to snatch unsuspecting prey such as small fish and invertebrates.
Details
- Recommended minimum tank volume
- 75 liter (20 gallons)
- Salinity
- S.G. 1.023 to 1.025
- Temperature
- 22 to 26 °C (72 to 79 °F)
- Acidity
- pH 8.1 to 8.4
- Average size
- 10 cm (4″)
- Care level
- Moderate to difficult Sensitive to water quality.
- Diet
- Carnivore Prefers live or frozen foods.
- Reefsafe
- No May prey on small invertebrates.
- Aggression
- Semi aggresive Can be predatory.
- Captive bred
- No
Taxonomy
- KingdomAnimalsAnimalia
- PhylumSegmented WormsAnnelida
- ClassPolychaetesPolychaeta
- OrderRagwormsPhyllodocida
- FamilyBloodwormsGlyceridae
- GenusBloodwormsGlycera
- SpeciesBobbit WormGlycera unicornis Lamarck, 1818
- SynonymsGlycera goesi Malmgren, 1867Glycera kraussii Stimpson, 1856Glycera meckelii Audouin & Milne Edwards, 1833Glycera mesnili Saint-Joseph, 1898Glycera nigripes Johnston, 1865Glycera rouxii Audouin & Milne Edwards, 1833
Care
Bobbit Worms are not commonly kept in home aquariums due to their predatory nature and potential size. However, they are sometimes inadvertently introduced into aquariums through live rock. If you decide to keep a Bobbit Worm, it is crucial to provide a deep sand bed for it to burrow and ample space to avoid conflicts with other tank inhabitants.
Reproduction
Little is known about the reproductive habits of Bobbit Worms in the wild or captivity. They are believed to reproduce by releasing gametes into the water column, where fertilization occurs externally.
Habitat
Bobbit Worms are typically found in sandy or muddy substrates in reef environments. They are adept at burrowing and can create complex tunnel systems where they lie in wait for prey. Their distribution is widespread in tropical and subtropical marine waters.