Pogonophora

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Pogonophore, also beardworm, any member of a phylum of deep-ocean animals resembling worms that feed by means of long, hollow tentacles, each with a double row of hair-like cilia. Pogonophores live in tubes they secrete in ocean-bottom oozes, sometimes near hydrothermal vents. The animals may be more than 30 cm (more than 1 ft) long but are never more than about 2 mm (about 0.08 in) in diameter. The body has no digestive tract, and food is absorbed directly through a front region bearing up to 250 tentacles. The sexes are separate. Pogonophores were first discovered in Indonesia in 1900. Their relationship to other phyla is not yet certain, although they are clearly related to acorn worms.

Scientific classification: Pogonophores make up the phylum Pogonophora.

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