Nereis Linnaeus, 1758

Lin, Jun-Hui, Huang, Ya-Qin, Liang, Qian-Yong & He, Xue-Bao, 2022, A new eyeless species of Nereis (Annelida, Nereididae) from deep-sea sediments of the northern South China Sea, ZooKeys 1134, pp. 23-37 : 23

Genus Nereis Linnaeus, 1758

Type species.

Nereis pelagica Linnaeus, 1758.

Generic diagnosis

(after Bakken and Wilson 2005; Bakken et al. 2018). Prostomium with entire anterior margin, one pair of antennae, one pair of biarticulated palps with conical palpostyles. Peristomium apodous, greater than length of chaetiger 1, with four pairs of tentacular cirri. Eyes present or absent. Conical paragnaths present on both maxillary and oral ring of pharynx. Notopodial dorsal ligule similar in size in anterior and posterior chaetigers or markedly reduced on posterior chaetigers. Notopodial prechaetal lobe present or absent, smaller than notopodial dorsal ligule on anterior chaetigers, usually reduced or absent posteriorly. Dorsal cirrus basally attached to notopodial dorsal ligule throughout all chaetigers, lacking basal cirrophore. Notoaciculae absent from chaetigers 1 and 2. Notochaetae: homogomph spinigers, homogomph falcigers present. Neurochaetae, dorsal fascicle: homogomph spinigers present, heterogomph falcigers on anterior chaetigers present or absent, on posterior chaetigers present. Neurochaetae, ventral fascicle: heterogomph spinigers present or absent, heterogomph falcigers present or absent.