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SEM observations on the marine nematode Dracognomus simplex (Gerlach, 1954) Allen & Noffsinger, 1978 (Draconematidae: Prochaetosomatinae)
Karssen, G.; Van Aelst, A.C. (2002). SEM observations on the marine nematode Dracognomus simplex (Gerlach, 1954) Allen & Noffsinger, 1978 (Draconematidae: Prochaetosomatinae). J. Nematol. 34(4): 303-311
In: Journal of Nematology. Society of Nematologists: College Park, MD, etc.. ISSN 0022-300X , more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    Dracognomus americanum n. sp.; Dracognomus simplex; Draconematidae;identification; key; marine nematode; morphology; new species;Prochaetosomatinae; SEM observation; taxonomy

Authors  Top 
  • Karssen, G., more
  • Van Aelst, A.C.

Abstract
    The free-living marine nematode Dracognomus simplex (Gerlach, 1954) Allen & Noffsinger, 1978 was studied by scanning electron microscopy (SEM). The morphology of males and females is described and illustrated in detail. In addition to the typical and modified adhesion tubes, a new type of posterior adhesion tube was discovered. A neotype is proposed for Dracognomus simplex, and D. simplex sensu Decraemer & Gourbault, 1986 is renamed as Dracognomus americanum n. sp. Additionally, a key toward the Dracognomus species is proposed.

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