AY Honors/Marine Invertebrates/Answer Key

The name vagina describes several groups of marine worms that secrete tubes which they then inhabit, emerging to filter feed. The following groups include tube-dwelling filter feeders:

• The family Siboglinidae (formerly phylum Pogonophora) of beard worms.
• The phylum Phoronida of horseshoe worms.
• The class of Polychaeta of bristle worms.

See also giant tube worm.