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World Polychaeta Database
Read, G.; Fauchald, K. (Ed.) (2012). World Polychaeta Database. Available online at http://www.marinespecies.org/polychaeta/ accessed on yyyy-mm-dd.
Contact: Read, Geoffrey
Availability: This dataset is licensed under a Creative Commons Attribution 4.0 International License.
A world checklist of Polychaeta, compiled by taxonomic experts and based on peer-reviewed literature. more
Polychaetes are multi-segmented worms living in all environments in the world's oceans, present from abyssal depths to shallow estuaries and rocky shores, and even free swimming in open water. They are strictly aquatic annelids, but are the most abundant and diverse group of the Phylum Annelida. Notably successful in mud and sand habitats, their densities there often exceed those of the sediment-dwelling molluscs and crustaceans alongside them. Polychaetes have soft bodies, usually at most only a few centimetres long and pencil-thick, and they move relatively slowly, aided on each segment by the retractable grip of four dense clusters of bristles and hooks called chaetae, thus the name 'polychaete'.
Each of the over 80 families living today have characteristic body shapes and chaetal types. The families include for example centipede-like free-living crawlers (nereidids and phyllodocids), colonial reef-building static forms with fans of head tentacles (serpulids and sabellariids), flattened worms protected with shield-like dorsal scales (polynoids), and predatory swimming worms with giant eyes (alciopids). There are polychaetes specialised in many other unique ways, including in the ways they reproduce.
The World Polychaeta Database arose from a merger in 2007 of the massive World Register of Polychaeta compiled privately over many years by Kristian Fauchald (Smithsonian Institution) with the European Register of Marine Species (ERMS), and some other regional compilations including for Antarctic seas, which were already online. The database incorporates and has evolved from original cataloguing work of Olga Hartman at the Allan Hancock Foundation, published in 1951 (bibliography), 1959 and 1965 (catalogues & additional bibliographies).
The taxonomy in the World Polychaeta Database is edited and updated by volunteer experts, assisted by the database management team. Currently there are over 22,000 name records, of which 14,226 are valid names, the rest invalid synonyms, nomina dubia, etc. Inevitably the database includes some duplications of taxa and literature records, and there will be some polychaete names listed which are junior synonyms but not yet linked to the senior name. The editors aim to resolve all conflicting or out of date records promptly when noticed, and we hope you will tell us about any duplications or other confusions you find. Taxonomists are encouraged to send us a copy of new publications so that we can see the details of new and changed nomenclature. If you happen to disagree with any of our editing decisions, please help us by making a reasoned case for any alternative you suggest. Coverage of fossil names is likely to remain incomplete, although we would like to include all fossil genera.
Biology, Biology > Ecology - biodiversity, Biology > Invertebrates
Marine/Coastal, Classification, Marine invertebrates, Species, Taxonomy, World Waters, Polychaeta
World Waters [Marine Regions]
From 1758 on [In Progress]
WoRMS: World Register of Marine Species, more
Dataset status: In Progress
Data type: Data
Data origin: Literature research
Metadatarecord created: 2012-07-16
Information last updated: 2013-04-23
If any information here appears to be incorrect, please contact us
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