Notomastus Sars, 1851

Jeong, Man-Ki, Soh, Ho Young, Wi, Jin Hee & Suh, Hae-Lip, 2018, A new Notomastus (Annelida, Capitellidae) species from Korean waters, with genetic comparison based on three gene markers, ZooKeys 754, pp. 141-155 : 143-144

Genus Notomastus Sars, 1851

Type species.

Notomastus latericeus Sars, 1851

Type locality.

Komagfjord, Norway

Generic diagnosis

(modified after Green 2002). Thorax with 12 segments including an achaetous peristomium and 11 chaetigers with capillary chaetae. Last three thoracic chaetigers may have capillary chaetae in both rami or may be transitional with capillary chaetae in notopodia and hooded hooks in neuropodia. Remaining chaetigers with hooded hooks only. Hooded hooks with one or more rows of teeth above main fang; more than two teeth in basal row. Branchiae may be present or absent.

Remarks.

According to the former generic diagnosis by Green (2002), Notomastus may or may not have a transitional chaetiger with capillary notochaetae and neurohooks in the last part of thorax. However, N. precocis Hartman, 1960 and N. teres Hartman, 1965 have three and two transitional chaetigers in the posterior thoracic region, respectively ( Gil and Bellan 2017, Hartman 1960, 1965). Therefore, the generic diagnosis was amended including the expanded range of the thoracic chaetal arrangement.