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Abyssal polychaetes are usually difficult to be identified because they are small, their body patterns differ from their shallow water relatives, their delicate bodies are often damaged during sampling and sieving, and their taxonomy is in need of revision. Members of the family Fauveliopsidae Hartman, 1971 are widespread in deep ocean basins and they follow the above statements. In this contribution, we present a revision of all available type and non-type material for the family. Our objective is to provide keys to identify genera and species, as well as standardized diagnoses, and illustrations for most species, excluding those described since 2011, or where type material was not available. One genus, Riseriopsis n. gen., is proposed and four species are newly described. The Fauveliopsidae now includes 24 species in three genera: Fauveliopsis McIntosh, 1922 (13 species), Laubieriopsis Petersen, 2000 (8 species), and Riseriopsis n. gen. (3 species). Fauveliopsis includes species usually living inside gastropod or scaphopod shells or foraminiferan tubes, Laubieriopsis and Riseriopsis include species commonly regarded as free living, although some species of the latter have very long bodies and have been found inside soft tubes. Inglés

Fauveliopsis includes: F. adriatica Katzmann & Laubier, 1974, F. armata Fauchald & Hancock, 1981, F. brattegardi Fauchald, 1972a, F. brevipodus Hartman, 1971, F. challengeriae McIntosh, 1922, F. glabra (Hartman in Hartman & Barnard, 1960), F. jameoaquensis Núñez in Núñez, Ocaña & Brito, 1997, F. levensteinae n. sp., F. magalhaesi n. sp., F. magna Fauchald & Hancock, 1981, F. olgae Hartmann-Schröder, 1983, F. rugosa Fauchald, 1972b, and F. scabra Hartman & Fauchald, 1971. Laubieriopsis includes: L. arenicola (Riser, 1987), L. blakei n. sp., L. brevis (Hartman, 1965), L. cabiochi (Amoureux, 1982), L. fauchaldi (Katzmann & Laubier, 1974) n. comb., L. hartmanae (Levenstein, 1970) reinst., L. norvegica Zhadan & Atroshchenko, 2012, and L. petersenae Magalhães, Bailey-Brock & Rizzo, 2014. Riseriopsis includes: R. arabica (Hartman, 1976) n. comb., R. confusa (Thiel, Purschke & Böggemann, 2011) n. comb., and R. santosae n. sp. Inglés

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