Glyceridae
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| Glyceridae | |
|---|---|
| File:Glycera alba.jpg | |
| Glycera alba with everted proboscis | |
| Scientific classification Edit this classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Annelida |
| Clade: | Pleistoannelida |
| Subclass: | Errantia |
| Order: | Phyllodocida |
| Suborder: | Glyceriformia |
| Family: | Glyceridae Grube, 1850 |
| Genera | |
Glyceridae is a family of polychaete worms.[1] They are commonly referred to as beak-thrower worms or bloodworms. They are bright red, segmented, aquatic worms. The proboscis worm Glycera is sometimes called bloodworm.[relevant?] The Glyceridae are epi- and infaunal polychaetes that prey upon small invertebrates. They are errant burrowers that build galleries of interconnected tubes to aid in catching their prey.
Characteristics
- Pointy snout used for burrowing in sediment
- No septa in anterior part of bodies
- Rely on peristalsis to move
- Explosively evert pharynx into sediment, anchor position with prostomium and pull body forward.
- Eversible pharynx also used in prey capture: 4 poisonous fangs
References
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