Guide to Singapore Polychaetes - Introduction to Polychaetes, list of families, an interactive system for Polychaete identification, glossary, and references. Bristle Worms and their Larvae - Article by Wim van Egmond on the life cycle and development of these marine worms, nicely illustrated. Spirobranchus giganteus: Christmas Tree Worm - Photograph taken in the Caribbean. Trochophore Larva - Photograph of a Mitraria larva. Polychaete Larva - Photograph of a Magelonid larva. Hydroides elegans - Taxonomy, photographs and description of this fouling serpulid worm, its habitat and distribution, life history, physical tolerances, community ecology and invasion information. Polychaete Identification Keys - Taxonomic information provided by the Natural History Museum. Giant Tube Worm: Riftia pachyptila - Photographs and information from ARKive.