Nicon
| Notice: | This page is derived from the original publication listed below, whose author(s) should always be credited. Further contributors may edit and improve the content of this page and, consequently, need to be credited as well (see page history). Any assessment of factual correctness requires a careful review of the original article as well as of subsequent contributions.
If you are uncertain whether your planned contribution is correct or not, we suggest that you use the associated discussion page instead of editing the page directly. This page should be cited as follows (rationale):
Citation formats to copy and paste
BibTeX: @article{León-González2013ZooKeys269, RIS/ Endnote: TY - JOUR Wikipedia/ Citizendium: <ref name="León-González2013ZooKeys269">{{Citation See also the citation download page at the journal. |
Ordo: Aciculata
Familia: Nereididae
Name
Nicon Kinberg, 1866 emended – Wikispecies link – Pensoft Profile
Type species
Nicon maculata Kinberg, 1866.
Diagnosis
Prostomium pyriform to subpyriform, with two pairs of eyespots, paired frontal antennae and biarticulate palps. Four pairs of tentacular cirri with distinct cirrophores, smooth or articulated. Parapodia of first two chaetigers subbiramous, notopodium represented by a single ligule with dorsal cirri at its base. Subsequent notopodia with dorsal and ventral ligules with or without a small notopodial prechaetal lobe decreasing in far posterior parapodia. Neuropodia with superior and inferior prechaetal lobes, digitiform or conical postchaetal lobe present or absent along body, and a ventral ligule which can be reduced in posterior parapodia; ventral cirri short, tapered. All notochaetae homogomph spinigers; neurochaetae homogomph, heterogomph or sesquigomph falcigers, may be accompanied by homogomph and heterogomph spinigers, and simple chaetae. Pygidium with paired anal cirri. Pharynx with paired mandibles, without paragnaths or papillae.
Remarks
This generic diagnosis was modified from Pettibone (1971)[1], Wu and Sun (1979)[2] and Hutchings and Reid (1990)[3]. Some important characteristics were not included by Pettibone (1971)[1] because at that time she recognized Nicon maculata as the only member of the genus. Later on, Wu and Sun (1979)[2] and Hutchings and Reid (1990)[3] expanded the genus diagnosis including characters of recently described species such as Nicon japonicus Imajima, 1972, Nicon yaguinae Fauchald, 1972, Nicon sinica Wu & Sun, 1979 and Nicon rotunda Hutchings & Reid, 1990. Some new characters included in the present diagnosis are the presence-absence of a notopodial prechaetal lobe, and the occurrence of neuropodial sesquigomph falcigers.
Taxon Treatment
- León-González, J; Trovant, B; 2013: A new species of Nicon Kinberg, 1866 (Polychaeta, Nereididae) from Ecuador, Eastern Pacific, with a key to all known species of the genus ZooKeys, 269: 67-76. doi
Other References
- ↑ 1.0 1.1 Pettibone M (1971) Revision of Some Species Referred to Leptonereis, Nicon, and Laeonereis (Polychaeta: Nereididae). Smithsonian Contributions to Zoology, 104: 1-53. doi: 10.5479/si.00810282.104
- ↑ 2.0 2.1 Wu B, Sun R (1979) Revision of the genera Nicon and Rullierinereis with descriptions of a new genus Sinonereis (Polychaeta: Nereidae). Oceanic Selections (2): 95–112.
- ↑ 3.0 3.1 Hutchings P, Reid A (1990) The Nereididae (Polychaeta) from Australia. Gymnonereidinae sensu Fitzhugh, 1987: Australonereis, Ceratocephale, Dendronereidides, Gymnonereis, Nicon, Olganereis and Websterinereis. Records of the Australian Museum 42: 69-100. doi: 10.3853/j.0067-1975.42.1990.107
