pogonophoran

Any of various marine annelid tubeworms of the family Siboglinidae (formerly classified in the phylum Pogonophora) that live in deep-sea habitats, often have numerous tentacles, and lack a digestive system, depending on endosymbiotic bacteria for nutrition.

Any marine, wormlike invertebrate of the phylum Pogonophora

Characteristic of these creatures

slender animal with tentacles and a tubelike outer covering; lives on the deep ocean bottom