WestBanks
understanding benthic, pelagic and air-borne ecosystem interactions in shallow coastal seas

WestBanks Metadata Database
List all

By choosing an item from the pick list, you can list all the projects, persons, institutes, literature and datasets in the database.

[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina

New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments
Bezerra, T.N.; Pape, E.; Hauquier, F.; Vanreusel, A.; Ingels, J. (2013). New genus and two new species of the family Ethmolaimidae (Nematoda: Chromadorida), found in two different cold-seep environments. Zootaxa 3692(1): 7-27. https://dx.doi.org/10.11646/zootaxa.3692.1.4
In: Zootaxa. Magnolia Press: Auckland. ISSN 1175-5326; e-ISSN 1175-5334
Peer reviewed article  

Beschikbaar in  Auteurs 

Trefwoorden
    Dystomanema Bezerra, Pape, Hauquier, Vanreusel & Ingels, 2013 [WoRMS]; Dystomanema brandtae Bezerra, Pape, Hauquier, Vanreusel & Ingels, 2013 [WoRMS]; Dystomanema cadizensis Bezerra, Pape, Hauquier, Vanreusel & Ingels, 2013 [WoRMS]
Author keywords
    Antarctic; Larsen; Southern Ocean; Gulf of Cadiz; Northeast Atlantic;Dystomanema gen. nov.; Dystomanema cadizensis gen. nov sp nov.;Dystomanema brandtae gen. nov sp nov.; cold seep

Auteurs  Top 
  • Bezerra, T.N.
  • Pape, E.
  • Hauquier, F.
  • Vanreusel, A., meer
  • Ingels, J.

Abstract
    This study describes a new genus Dystomanema gen. nov. with two new species, D. cadizensis sp. nov. and D. brandtae sp. nov. within the family Ethmolaimidae, subfamily Neotonchinae, based on specimens from two low-activity cold-seep environments at distant geographical locations. The new genus was first identified in samples from the Darwin mud vol-cano (1100 m depth) in the Gulf of Cádiz and later on also found in samples from a low-activity seep in the Larsen B embayment (820m depth) off the eastern Antarctic Peninsula. Until now, the family Ethmolaimidae contained nine genera: Ethmolaimus and Paraethmolaimus in the subfamily Ethmolaiminae, and Comesa, Filitonchoides, Filitonchus, Gomphionchus, Gomphionema, Nannolaimus, and Neothonchus in the subfamily Neotonchinae. The most important family characteristics are: an annulated cuticle bearing transverse rows of dots, cephalic sensilla arrangement of 6+6+4, a spiral amphid, an oesophagus with muscular posterior bulb, paired gonads and males with cup-shaped precloacal supplements. The new genus resembles Comesa and Neotonchus, but is typified by a ventrally displaced oral opening with three very small teeth that are easily overlooked. D. cadizensis gen. nov. sp. nov. is characterized by the 1401–2123 µm long body; cuticle transversally striated with fine punctation; head conical; low lips; amphid spiralled 3 turns, oral opening ventrally displaced, male with outstretched testes; spicules of equal size; gubernaculum plate-like and ten to twelve con-spicuous cup-shaped precloacal supplements with external longitudinal articulated flange. D. brandtae gen. nov. sp. nov. can be distinguished by the 2438–3280 µm long body; cuticle transversally striated with fine punctuation; head conical; low lips; amphid spiraled 3+ turns; oral opening ventrally displaced; male with anterior testes outstretched and posterior one smaller and reflexed; spicules of equal size; gubernaculum plate-like and twenty conspicuous cup-shaped precloacal supplements with external longitudinal articulated flange. Notes on the ecology and habitat of the new genus are provided in light of its discovery in cold-seep environments.

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
Westbanks is a project Supported by the Belgian Science Policy (BELSPO): SSD Science for sustainable Development
General coordination: Magda Vincx & Jan Vanaverbeke
Hosted by the Flanders Marine Institute VLIZ