Resurrection of the genus Nectoneanthes Imajima, 1972 (Nereididae: Polychaeta), with redescription of Nectoneanthes oxypoda (Marenzeller, 1879) and description of a new species, comparing them to Neanthes succinea (Leuckart, 1847) Author Sato, Masanori text Journal of Natural History 2013 J. Nat. Hist. 2013-01-17 47 1 - 2 1 50 http://dx.doi.org/10.1080/00222933.2012.743609 journal article 7055 10.1080/00222933.2012.743609 9d06c328-f898-4a9d-ad07-c59c765bfc83 1464-5262 4631785 8868B0C6-E0A5-42BC-B7F6-9FF4F0960D27 Genus Neanthes Kinberg, 1865 Neanthes Kinberg, 1865: 171–172 ; Imajima, 1972: 102 ; Fauchald, 1977: 89 ; Wu et al., 1985: 143 ; Khlebovich, 1996: 102 ; Bakken and Wilson, 2005: 527 ; Glasby et al., 2011: 363 . Type species: Neanthes vaalii Kinberg, 1865 . Diagnosis Prostomium with entire anterior margin, one pair of antennae, one pair of palps. Eyes present or absent. Eversible proboscis with conical paragnaths on both maxillary and oral rings; paragnaths occasionally emerging from plate-like basement; smooth barlike paragnaths present or absent on Area IV of maxillary ring. Four pairs of tentacular cirri. Parapodia biramous, except first two pairs; notoaciculae present or absent on chaetigers 1 and 2. Dorsal cirrus lacking basal cirrophore. Notochaetae homogomph spinigers. Upper neurochaetae including homogomph spinigers and heterogomph falcigers; heterogomph spinigers present or absent. Lower neurochaetae including heterogomph falcigers; homogomph and heterogomph spinigers present or absent. Neuropodial heterogomph falcigers occasionally with varying degrees of fusion of chaetal shaft and blade in posterior body. Remarks Neanthes is a large genus, considered to be polyphyletic ( Bakken and Wilson 2005 ; Glasby et al. 2011 ). The generic diagnosis is modified here from Bakken and Wilson (2005) and Glasby et al. (2011) to allow for the presence of notoaciculae on chaetigers 1 and 2 of Neanthes succinea , which is placed back to this genus from Alitta in the present study (see below).