About | Search taxa | Taxon tree | Search literature | Specimens | Distribution | Checklist | Stats | Log in

Polychaeta source details

Sikorski, Andrey; Gunton, Laetitia M.; Pavlova, Lyudmila. (2017). Laonice species (Polychaeta, Spionidae) from the Whittard Canyon (NE Atlantic) with descriptions of two new species. Journal of the Marine Biological Association of the United Kingdom. 97(05): 961-973.
281726
10.1017/s0025315417000480 [view]
Sikorski, Andrey; Gunton, Laetitia M.; Pavlova, Lyudmila
2017
Laonice species (Polychaeta, Spionidae) from the Whittard Canyon (NE Atlantic) with descriptions of two new species
Journal of the Marine Biological Association of the United Kingdom
97(05): 961-973
Publication
World Polychaeta Database (WPolyDb). Print published 10 August 2017
Available for editors  PDF available [request]
Four species of Laonice (Annelida: Spionidae) were collected from the lower bathyal depths (3300–3700 m) in the Whittard Canyon, NE Atlantic. Two are herewith described as new species: Laonice whittardensis sp. nov. and Laonice natae sp. nov. The other two are Laonice blakei Sikorski & Jirkov, 1988 and Laonice magnacristata Maciolek, 2000. Laonice whittardensis has genital pouches appearing from chaetiger 3, prostomium free of peristomium and bidentate hooks. Laonice natae belongs to the subgenus Appelloefia nov. with prostomium distinct from the peristomium, more than two vertical rows of capillaries in several anterior chaetigers, genital pouches present on a limited number of segments or totally absent. However, the absence of pronounced anterior widening of the body together with anterior branchiae, which are remarkably (nearly twice) longer than the notopodial postchaetal lobes, the narrow lanceolate notopodial postchaetal lobes, the pronounced pointedness of all postchaetal lobes (both notopodial and neuropodial) in the anterior half of body at least, and absence of genital pouches and the size of the body all distinguish L. natae from other species belonging to this subgenus. An identification key to all nine known deep-water (>400 m depth) Laonice species in North Atlantic is given and four previously recognized sub-generic groups are formally named: Laonice, Sarsiana subgen. nov., Appelloefia subgen. nov., Norgensia subgen. nov.
North Atlantic
Systematics, Taxonomy
RIS (EndNote, Reference Manager, ProCite, RefWorks)
BibTex (BibDesk, LaTeX)
Date
action
by
2017-08-12 10:11:13Z
created
2017-10-06 03:46:54Z
changed

 Diagnosis

From Sikorski et al. (2018: 962): "prostomium looks totally free from peristomium, capillaries arranged in more ... [details]

 Diagnosis

From Sikorski et al. (2018: 962): "Can easily be distinguished by a prostomium clearly fused with peristomium by ... [details]

 Diagnosis

From Sikorski e al (2918: 963): "the prostomium and peristomium are completely un-fused; branchiae are present along ... [details]

 Diagnosis

From Sikorski et al (2018: 962): "anterolateral corners of the prostomium fused to peristomium generally only by an ... [details]