Revision of Ampharetidae (Polychaeta) with modified thoracic notopodia

Abstract

Ampharetidae comprises about 300 species and 100 genera, more than 50 are monotipic. As a first step towards a revision of the family, all 30 species with modified thoracic notopodia are reviewed. These 27 species had previously been organized into 11 genera, but several more genera need to be established if we follow a traditional approach to taxonomy of family. Based on a critical re-evaluation of 12 characters commonly used in ampharetid taxonomy and traditional weighting of these characters, it is proposed to combine these 30 species into 3 genera: Anobothrus, Zatsepinia and Sosane. A posteriori the following characters are of high value in ampharetid taxonomy: type of prostomium, modification of notopodia, presence/absence of a pair of well developed nephridial papillae behind the branchiae, presence/absence of a circular band on anterior thorax, number of uncinigers with modified notopodia, amount of uncinigers with neuropodia of thoracic type. The following characters are considered of low value for generic distinction among Ampharetidae: type of buccal tentacles, presence/absence of paleae, number of thoracic and abdominal uncinigers, pairs of branchiae, type of branchostyles. The taxonomic part of the paper includes redescriptions of 7 species based on type material and new records. Anobothrus patersoni sp.n., A. mironovi sp.n., and A. nataliae sp.n. are described as new to science. The species descriptions are accompanied by remarks on geographic and bathymetric distribution. The replacement of different species in different geographic areas is shown.

Anobothrus amourouxisp. nov., a new species of Ampharetidae (Polychaeta) from the Capbreton Canyon (Bay of Biscay, NE Atlantic Ocean)

“…Anobothrus gracilis is a species described from Swedish coasts and has a wide distribution in the Arctic Ocean, North Atlantic Ocean (Iceland to Swedish West coast), and NW Pacific Ocean (Jirkov, 2008(Jirkov, , 2011Parapar et al, 2014). Anobothrus patersoni is an exclusively abyssal species (3260 -8292 m depth) described from North Pacific (Japan) but recorded also in the North Atlantic (Jirkov, 2008). In the Capbreton Canyon, Rallo et al (1993) found a single specimen of A. gracilis between 358 -410 m, and two incomplete specimens of Anobothrus aff.…”

Deep-sea Ampharetidae (Polychaeta) from Capbreton Canyon (north-east Atlantic) with the description of a new species

“…21 according to Jirkov (2011) or 73 and 71 according to Salazar & Hutchings (2012) and Reuscher et al (2009), respectively). Since papers by Hartley (1985) and Holthe (1986a, b), knowledge of this family has had significant contributions, from Mackie & Pleijel (1995), Jirkov (2001 and Parapar et al (2011Parapar et al ( , 2012 for European waters, and from Hilbig (2000), Holthe (2000), Jirkov (2008), Schüller (2008), Reuscher et al (2009) and Imajima et al (2012Imajima et al ( , 2013 for other oceans.…”

Polychaetes of Greece: an updated and annotated checklist

“…Reported from worldwide locations but probably restricted to circumpolar areas; specimens from other regions may belong to other species (Jirkov 2008). …”